Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-08-2023 08:57

General

  • Target

    0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d.exe

  • Size

    927KB

  • MD5

    84176f70ad3712b0ad2aa449ba8c6341

  • SHA1

    783cb3d63e6e1933db92853f148df8828a11e5a3

  • SHA256

    0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d

  • SHA512

    dc8361f6c9ce7a3f23997137c54f75c906fc517bd34134e813ea1d5ec9191c16a1f2c8d233701b0d126927dfe669957723b63bf579b20e64b110ee425240cea4

  • SSDEEP

    24576:zdcfbRjPxvNP63JaGIPszNvGfhdZ7psbX7TPYD9lDC:+P63JIPs4fFWbrMD9lO

Malware Config

Signatures

  • Ammyy Admin

    Remote admin tool with various capabilities.

  • AmmyyAdmin payload 2 IoCs
  • FlawedAmmyy RAT

    Remote-access trojan based on leaked code for the Ammyy remote admin software.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d.exe
    "C:\Users\Admin\AppData\Local\Temp\0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Users\Admin\AppData\Local\Temp\0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d.exe
      C:\Users\Admin\AppData\Local\Temp\0f79da23dc318670dcd4f8709d04826420b50bbdb080a2fff7573e11a875b22d.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1512
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:4404
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:3204
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:2892
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:440
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3496
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:724
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:3812
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:412
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1472
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:4480
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:3608
                        • C:\Windows\SysWOW64\explorer.exe
                          C:\Windows\SysWOW64\explorer.exe
                          1⤵
                            PID:5028
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            1⤵
                              PID:5076
                            • C:\Windows\explorer.exe
                              C:\Windows\explorer.exe
                              1⤵
                                PID:1312
                              • C:\Windows\SysWOW64\explorer.exe
                                C:\Windows\SysWOW64\explorer.exe
                                1⤵
                                • Suspicious behavior: MapViewOfSection
                                • Suspicious use of WriteProcessMemory
                                PID:1388
                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\svchost.exe
                                  C:\Users\Admin\AppData\Local\Temp\2205.tmp\svchost.exe -debug
                                  2⤵
                                  • Executes dropped EXE
                                  • Writes to the Master Boot Record (MBR)
                                  • Suspicious use of FindShellTrayWindow
                                  PID:2388
                                  • C:\Windows\SYSTEM32\rundll32.exe
                                    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\2205.tmp\aa_nts.dll",run
                                    3⤵
                                    • Loads dropped DLL
                                    PID:1044
                              • C:\Users\Admin\AppData\Roaming\huducte
                                C:\Users\Admin\AppData\Roaming\huducte
                                1⤵
                                  PID:3952

                                Network

                                MITRE ATT&CK Enterprise v15

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\aa_nts.dll

                                  Filesize

                                  902KB

                                  MD5

                                  480a66902e6e7cdafaa6711e8697ff8c

                                  SHA1

                                  6ac730962e7c1dba9e2ecc5733a506544f3c8d11

                                  SHA256

                                  7eaaaa6010bbcd6bb8c9ad08d4b0966c7aedc9b2ac24758f170012ac36e508b5

                                  SHA512

                                  7d010cd47b7d1adf66f9c97afc6c3805997aa5c7cc6ff13eddee81f24cf2b95a3fe375ec5b3d6185c0bc8840b4ad91ae143c73a39af26391cc182ab6a1793ba5

                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\aa_nts.dll

                                  Filesize

                                  902KB

                                  MD5

                                  480a66902e6e7cdafaa6711e8697ff8c

                                  SHA1

                                  6ac730962e7c1dba9e2ecc5733a506544f3c8d11

                                  SHA256

                                  7eaaaa6010bbcd6bb8c9ad08d4b0966c7aedc9b2ac24758f170012ac36e508b5

                                  SHA512

                                  7d010cd47b7d1adf66f9c97afc6c3805997aa5c7cc6ff13eddee81f24cf2b95a3fe375ec5b3d6185c0bc8840b4ad91ae143c73a39af26391cc182ab6a1793ba5

                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\aa_nts.msg

                                  Filesize

                                  46B

                                  MD5

                                  3f05819f995b4dafa1b5d55ce8d1f411

                                  SHA1

                                  404449b79a16bfc4f64f2fd55cd73d5d27a85d71

                                  SHA256

                                  7e0bf0cbd06a087500a9c3b50254df3a8a2c2980921ab6a62ab1121941c80fc0

                                  SHA512

                                  34abb7df8b3a68e1649ff0d2762576a4d4e65da548e74b1aa65c2b82c1b89f90d053ecddac67c614ca6084dc5b2cb552949250fb70f49b536f1bcb0057717026

                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\svchost.exe

                                  Filesize

                                  798KB

                                  MD5

                                  90aadf2247149996ae443e2c82af3730

                                  SHA1

                                  050b7eba825412b24e3f02d76d7da5ae97e10502

                                  SHA256

                                  ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a

                                  SHA512

                                  eec32bb82b230dd309c29712e72d4469250e651449e127479d178eddbafd5a46ec8048a753bc2c1a0fdf1dc3ed72a9453ca66fb49cbf0f95a12704e5427182be

                                • C:\Users\Admin\AppData\Local\Temp\2205.tmp\svchost.exe

                                  Filesize

                                  798KB

                                  MD5

                                  90aadf2247149996ae443e2c82af3730

                                  SHA1

                                  050b7eba825412b24e3f02d76d7da5ae97e10502

                                  SHA256

                                  ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a

                                  SHA512

                                  eec32bb82b230dd309c29712e72d4469250e651449e127479d178eddbafd5a46ec8048a753bc2c1a0fdf1dc3ed72a9453ca66fb49cbf0f95a12704e5427182be

                                • C:\Users\Admin\AppData\Roaming\huducte

                                  Filesize

                                  354KB

                                  MD5

                                  9ce7c633c41750e2943770e5d4d6194f

                                  SHA1

                                  70cbf7712c58510832271e920a45e3d3aca45ede

                                  SHA256

                                  3fc32a755f551b2f14b66d7366c4a778f34ba9a11c60ba0081ac059cf59f7060

                                  SHA512

                                  445cce8ce7981d9c49996b50d722716eacae860cd1fcd63597c372e4deaf6cce4fb3b59ef9666cb9a6c5a49c82c635bb9af93e6789c47d1372912c3449dbb3ea

                                • C:\Users\Admin\AppData\Roaming\huducte

                                  Filesize

                                  54KB

                                  MD5

                                  1c70b5c9cfc26fdb8422b97ad7d57eaf

                                  SHA1

                                  0db3690492db5bfe2d71c302971119ca93dad1de

                                  SHA256

                                  759df6fde8881cfa48ec914ffb4dc25c3ed546fc13e2560985a12a580289ea21

                                  SHA512

                                  8321bd6ccc7b6e4f309e7f6946a2d5a8e4a5f90e58fa8ec967aad2e150be12a2ce1a40485cf655fe45429e697e29db218f7d2cf3b0db84abae16c6b57993acaf

                                • memory/412-1279-0x0000000000410000-0x000000000041C000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/412-1276-0x0000000000420000-0x0000000000426000-memory.dmp

                                  Filesize

                                  24KB

                                • memory/440-1264-0x0000000000EA0000-0x0000000000EAA000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/440-1265-0x0000000000E90000-0x0000000000E9B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/724-1287-0x0000000000710000-0x0000000000719000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/724-1290-0x0000000000700000-0x000000000070F000-memory.dmp

                                  Filesize

                                  60KB

                                • memory/724-1271-0x0000000000700000-0x000000000070F000-memory.dmp

                                  Filesize

                                  60KB

                                • memory/724-1269-0x0000000000710000-0x0000000000719000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1312-1333-0x00000000003E0000-0x00000000003F0000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/1312-1307-0x00000000003E0000-0x00000000003F0000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/1312-1309-0x00000000003D0000-0x00000000003DD000-memory.dmp

                                  Filesize

                                  52KB

                                • memory/1388-1314-0x00000000007B0000-0x00000000007B8000-memory.dmp

                                  Filesize

                                  32KB

                                • memory/1388-1346-0x00000000007B0000-0x00000000007B8000-memory.dmp

                                  Filesize

                                  32KB

                                • memory/1388-1315-0x00000000007A0000-0x00000000007AB000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/1472-1305-0x0000000000180000-0x0000000000189000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1472-1281-0x0000000000190000-0x0000000000194000-memory.dmp

                                  Filesize

                                  16KB

                                • memory/1472-1282-0x0000000000180000-0x0000000000189000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1512-1219-0x0000000000400000-0x0000000000409000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1512-1222-0x0000000000400000-0x0000000000409000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2388-1321-0x00000000001E0000-0x00000000001E1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2388-1328-0x00000000001E0000-0x00000000001E1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2388-1353-0x00000000001D0000-0x00000000001DB000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/2388-1330-0x0000000002700000-0x0000000002701000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2388-1325-0x0000000002720000-0x0000000002721000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2388-1322-0x00000000001D0000-0x00000000001DB000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/2864-162-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-170-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-194-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-196-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-198-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-200-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-202-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-1215-0x0000000005B70000-0x0000000005B71000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2864-1218-0x0000000075140000-0x00000000758F0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2864-190-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-1220-0x0000000075140000-0x00000000758F0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2864-188-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-186-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-184-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-180-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-182-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-178-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-134-0x0000000075140000-0x00000000758F0000-memory.dmp

                                  Filesize

                                  7.7MB

                                • memory/2864-176-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-174-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-172-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-192-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-168-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-166-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-164-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-160-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-158-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-156-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-154-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-152-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-150-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-148-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-146-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-144-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-142-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-140-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-139-0x0000000006EB0000-0x0000000006F63000-memory.dmp

                                  Filesize

                                  716KB

                                • memory/2864-138-0x0000000005950000-0x000000000595A000-memory.dmp

                                  Filesize

                                  40KB

                                • memory/2864-137-0x00000000059D0000-0x00000000059E0000-memory.dmp

                                  Filesize

                                  64KB

                                • memory/2864-136-0x00000000057C0000-0x0000000005852000-memory.dmp

                                  Filesize

                                  584KB

                                • memory/2864-135-0x0000000005C90000-0x0000000006234000-memory.dmp

                                  Filesize

                                  5.6MB

                                • memory/2864-133-0x0000000000CD0000-0x0000000000DBE000-memory.dmp

                                  Filesize

                                  952KB

                                • memory/2892-1260-0x0000000000F90000-0x0000000000F94000-memory.dmp

                                  Filesize

                                  16KB

                                • memory/2892-1278-0x0000000000F80000-0x0000000000F89000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2892-1262-0x0000000000F80000-0x0000000000F89000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/2892-1274-0x0000000000F90000-0x0000000000F94000-memory.dmp

                                  Filesize

                                  16KB

                                • memory/3204-1245-0x0000000000B80000-0x0000000000B87000-memory.dmp

                                  Filesize

                                  28KB

                                • memory/3204-1249-0x0000000000B70000-0x0000000000B7C000-memory.dmp

                                  Filesize

                                  48KB

                                • memory/3496-1266-0x0000000000F90000-0x0000000000F97000-memory.dmp

                                  Filesize

                                  28KB

                                • memory/3496-1268-0x0000000000F80000-0x0000000000F8B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/3496-1286-0x0000000000F80000-0x0000000000F8B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/3608-1293-0x00000000004D0000-0x00000000004F7000-memory.dmp

                                  Filesize

                                  156KB

                                • memory/3608-1292-0x0000000000500000-0x0000000000521000-memory.dmp

                                  Filesize

                                  132KB

                                • memory/3608-1320-0x0000000000500000-0x0000000000521000-memory.dmp

                                  Filesize

                                  132KB

                                • memory/3812-1272-0x00000000006E0000-0x00000000006E5000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/3812-1295-0x00000000006E0000-0x00000000006E5000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/3812-1275-0x00000000006D0000-0x00000000006D9000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4404-1232-0x0000000000500000-0x0000000000575000-memory.dmp

                                  Filesize

                                  468KB

                                • memory/4404-1233-0x0000000000490000-0x00000000004FB000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/4404-1259-0x0000000000490000-0x00000000004FB000-memory.dmp

                                  Filesize

                                  428KB

                                • memory/4480-1284-0x0000000000D50000-0x0000000000D55000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/4480-1285-0x0000000000D40000-0x0000000000D49000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/4480-1313-0x0000000000D50000-0x0000000000D55000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/5028-1296-0x0000000000F90000-0x0000000000F95000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/5028-1323-0x0000000000F90000-0x0000000000F95000-memory.dmp

                                  Filesize

                                  20KB

                                • memory/5028-1298-0x0000000000F80000-0x0000000000F89000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/5028-1327-0x0000000000F80000-0x0000000000F89000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/5076-1302-0x0000000000F90000-0x0000000000F96000-memory.dmp

                                  Filesize

                                  24KB

                                • memory/5076-1303-0x0000000000F80000-0x0000000000F8B000-memory.dmp

                                  Filesize

                                  44KB

                                • memory/5076-1329-0x0000000000F80000-0x0000000000F8B000-memory.dmp

                                  Filesize

                                  44KB