Analysis

  • max time kernel
    73s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    02-11-2020 09:10

General

  • Target

    cfa3fbe4fcd80eabc714b98b532bcb21.exe

  • Size

    667KB

  • MD5

    cfa3fbe4fcd80eabc714b98b532bcb21

  • SHA1

    730fdcea25571f6a2ba16361a534b167d47da56b

  • SHA256

    d740674533d5c0fb220dceec7eb0d440a1f01231a728030b355361b9f0aeff77

  • SHA512

    74f1b86bfd89daac5568e3f43c8adb1f0e96dad09897a59d5ce6b7ac884b05f9f9a5987803bb8645b7275634b25d073a7c88053561a661df5f95ad9a15e007a5

Score
10/10

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 64 IoCs
  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 12 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfa3fbe4fcd80eabc714b98b532bcb21.exe
    "C:\Users\Admin\AppData\Local\Temp\cfa3fbe4fcd80eabc714b98b532bcb21.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 752
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3312
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 876
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1204
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1564
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4272
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 1536
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3408
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1180
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1608
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1164
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 3
            5⤵
            • Runs ping.exe
            PID:8
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
      bestofd.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 532
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 504
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:3304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 1256
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4572
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 1304
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:1524
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 1292
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2836
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 1280
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:3380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1896 -s 1372
        3⤵
        • Program crash
        PID:1200

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    b77a1d58626a5d4a77202afbf717accb

    SHA1

    1a37bf11e2b75384785d05780fe17fe1167bfbb1

    SHA256

    a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13

    SHA512

    d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
    MD5

    b77a1d58626a5d4a77202afbf717accb

    SHA1

    1a37bf11e2b75384785d05780fe17fe1167bfbb1

    SHA256

    a0a1952f947eaea5f54da2c343da0dc0ef5cd7bc58fe27f1dbf4e7199e757a13

    SHA512

    d12789afcdf0b6dc4dfd5c944c56466c3305b1f87670a038401e22a27ee8980b11a6039e73c4729c731dfd241fdb84c7c850c6ee2cd04bdfac6d5f5b2c8fff26

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
    MD5

    72131adb0e2315281aae445db11e09a2

    SHA1

    712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e

    SHA256

    9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65

    SHA512

    bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestofd.exe
    MD5

    72131adb0e2315281aae445db11e09a2

    SHA1

    712ca2ebaa7d9bc9bbe18f7843954cfb0d22b08e

    SHA256

    9ea7a66f0c3dc13ddfc6f05d95049dd7f641053a380578a12013db9f72367f65

    SHA512

    bbc68fa0c586aaa7227da59848407672e7629e8f1289384add8638c21bab69d41495bcfc7881446b527e5aa4db14e1babc4f71dfee32b69705e6d3b64bf46a22

  • memory/8-239-0x0000000000000000-mapping.dmp
  • memory/1164-235-0x0000000000000000-mapping.dmp
  • memory/1180-22-0x0000000000000000-mapping.dmp
  • memory/1180-26-0x0000000000FA0000-0x0000000000FA1000-memory.dmp
    Filesize

    4KB

  • memory/1180-25-0x00000000729F0000-0x00000000730DE000-memory.dmp
    Filesize

    6.9MB

  • memory/1200-236-0x0000000004B10000-0x0000000004B11000-memory.dmp
    Filesize

    4KB

  • memory/1524-184-0x00000000052A0000-0x00000000052A1000-memory.dmp
    Filesize

    4KB

  • memory/1524-173-0x0000000004970000-0x0000000004971000-memory.dmp
    Filesize

    4KB

  • memory/1608-170-0x0000000007650000-0x0000000007651000-memory.dmp
    Filesize

    4KB

  • memory/1608-33-0x0000000002E50000-0x0000000002E74000-memory.dmp
    Filesize

    144KB

  • memory/1608-129-0x0000000007170000-0x0000000007171000-memory.dmp
    Filesize

    4KB

  • memory/1608-131-0x0000000006F00000-0x0000000006F01000-memory.dmp
    Filesize

    4KB

  • memory/1608-133-0x0000000007210000-0x0000000007211000-memory.dmp
    Filesize

    4KB

  • memory/1608-45-0x0000000005900000-0x0000000005901000-memory.dmp
    Filesize

    4KB

  • memory/1608-28-0x0000000000400000-0x0000000000436000-memory.dmp
    Filesize

    216KB

  • memory/1608-29-0x000000000040CD2F-mapping.dmp
  • memory/1608-30-0x0000000000400000-0x0000000000436000-memory.dmp
    Filesize

    216KB

  • memory/1608-31-0x0000000003040000-0x0000000003041000-memory.dmp
    Filesize

    4KB

  • memory/1608-32-0x00000000729F0000-0x00000000730DE000-memory.dmp
    Filesize

    6.9MB

  • memory/1608-83-0x0000000006FA0000-0x0000000006FA1000-memory.dmp
    Filesize

    4KB

  • memory/1608-34-0x0000000005BB0000-0x0000000005BB1000-memory.dmp
    Filesize

    4KB

  • memory/1608-35-0x0000000005520000-0x0000000005542000-memory.dmp
    Filesize

    136KB

  • memory/1608-36-0x00000000066C0000-0x00000000066C1000-memory.dmp
    Filesize

    4KB

  • memory/1608-37-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB

  • memory/1608-38-0x00000000055F0000-0x00000000055F1000-memory.dmp
    Filesize

    4KB

  • memory/1608-84-0x00000000076A0000-0x00000000076A1000-memory.dmp
    Filesize

    4KB

  • memory/1608-220-0x0000000008BE0000-0x0000000008BE1000-memory.dmp
    Filesize

    4KB

  • memory/1608-223-0x0000000008F10000-0x0000000008F11000-memory.dmp
    Filesize

    4KB

  • memory/1608-42-0x00000000056B0000-0x00000000056B1000-memory.dmp
    Filesize

    4KB

  • memory/1896-92-0x0000000000000000-mapping.dmp
  • memory/1896-178-0x0000000000000000-mapping.dmp
  • memory/1896-43-0x0000000002364000-0x0000000002365000-memory.dmp
    Filesize

    4KB

  • memory/1896-46-0x0000000003FC0000-0x0000000003FF2000-memory.dmp
    Filesize

    200KB

  • memory/1896-47-0x00000000042E0000-0x00000000042E1000-memory.dmp
    Filesize

    4KB

  • memory/1896-48-0x00000000729F0000-0x00000000730DE000-memory.dmp
    Filesize

    6.9MB

  • memory/1896-234-0x0000000000000000-mapping.dmp
  • memory/1896-233-0x0000000000000000-mapping.dmp
  • memory/1896-52-0x0000000000000000-mapping.dmp
  • memory/1896-55-0x0000000000000000-mapping.dmp
  • memory/1896-56-0x0000000000000000-mapping.dmp
  • memory/1896-53-0x0000000000000000-mapping.dmp
  • memory/1896-54-0x0000000000000000-mapping.dmp
  • memory/1896-232-0x0000000000000000-mapping.dmp
  • memory/1896-61-0x0000000000000000-mapping.dmp
  • memory/1896-60-0x0000000000000000-mapping.dmp
  • memory/1896-59-0x0000000000000000-mapping.dmp
  • memory/1896-58-0x0000000000000000-mapping.dmp
  • memory/1896-228-0x0000000000000000-mapping.dmp
  • memory/1896-66-0x0000000000000000-mapping.dmp
  • memory/1896-65-0x0000000000000000-mapping.dmp
  • memory/1896-69-0x0000000000000000-mapping.dmp
  • memory/1896-68-0x0000000000000000-mapping.dmp
  • memory/1896-67-0x0000000000000000-mapping.dmp
  • memory/1896-231-0x0000000000000000-mapping.dmp
  • memory/1896-74-0x0000000000000000-mapping.dmp
  • memory/1896-73-0x0000000000000000-mapping.dmp
  • memory/1896-72-0x0000000000000000-mapping.dmp
  • memory/1896-71-0x0000000000000000-mapping.dmp
  • memory/1896-75-0x0000000004140000-0x0000000004164000-memory.dmp
    Filesize

    144KB

  • memory/1896-77-0x0000000004410000-0x0000000004432000-memory.dmp
    Filesize

    136KB

  • memory/1896-39-0x0000000000000000-mapping.dmp
  • memory/1896-230-0x0000000000000000-mapping.dmp
  • memory/1896-229-0x0000000000000000-mapping.dmp
  • memory/1896-88-0x0000000000000000-mapping.dmp
  • memory/1896-89-0x0000000000000000-mapping.dmp
  • memory/1896-90-0x0000000000000000-mapping.dmp
  • memory/1896-227-0x0000000000000000-mapping.dmp
  • memory/1896-91-0x0000000000000000-mapping.dmp
  • memory/1896-93-0x0000000000000000-mapping.dmp
  • memory/1896-222-0x0000000000000000-mapping.dmp
  • memory/1896-225-0x0000000000000000-mapping.dmp
  • memory/1896-224-0x0000000000000000-mapping.dmp
  • memory/1896-221-0x0000000000000000-mapping.dmp
  • memory/1896-167-0x0000000000000000-mapping.dmp
  • memory/1896-168-0x0000000000000000-mapping.dmp
  • memory/1896-219-0x0000000000000000-mapping.dmp
  • memory/1896-169-0x0000000000000000-mapping.dmp
  • memory/1896-172-0x0000000000000000-mapping.dmp
  • memory/1896-171-0x0000000000000000-mapping.dmp
  • memory/1896-218-0x0000000000000000-mapping.dmp
  • memory/1896-176-0x0000000000000000-mapping.dmp
  • memory/1896-177-0x0000000000000000-mapping.dmp
  • memory/1896-44-0x0000000003FC0000-0x0000000003FC1000-memory.dmp
    Filesize

    4KB

  • memory/1896-179-0x0000000000000000-mapping.dmp
  • memory/1896-180-0x0000000000000000-mapping.dmp
  • memory/1896-181-0x0000000000000000-mapping.dmp
  • memory/1896-182-0x0000000000000000-mapping.dmp
  • memory/1896-183-0x0000000000000000-mapping.dmp
  • memory/1896-217-0x0000000000000000-mapping.dmp
  • memory/1896-185-0x0000000000000000-mapping.dmp
  • memory/1896-187-0x0000000000000000-mapping.dmp
  • memory/1896-188-0x0000000000000000-mapping.dmp
  • memory/1896-186-0x0000000000000000-mapping.dmp
  • memory/1896-189-0x0000000000000000-mapping.dmp
  • memory/1896-191-0x0000000000000000-mapping.dmp
  • memory/1896-190-0x0000000000000000-mapping.dmp
  • memory/1896-216-0x0000000000000000-mapping.dmp
  • memory/1896-196-0x0000000000000000-mapping.dmp
  • memory/1896-195-0x0000000000000000-mapping.dmp
  • memory/1896-197-0x0000000000000000-mapping.dmp
  • memory/1896-199-0x0000000000000000-mapping.dmp
  • memory/1896-198-0x0000000000000000-mapping.dmp
  • memory/1896-200-0x0000000000000000-mapping.dmp
  • memory/1896-202-0x0000000000000000-mapping.dmp
  • memory/1896-201-0x0000000000000000-mapping.dmp
  • memory/1896-215-0x0000000000000000-mapping.dmp
  • memory/1896-204-0x0000000000000000-mapping.dmp
  • memory/1896-205-0x0000000000000000-mapping.dmp
  • memory/1896-207-0x0000000000000000-mapping.dmp
  • memory/1896-206-0x0000000000000000-mapping.dmp
  • memory/1896-208-0x0000000000000000-mapping.dmp
  • memory/1896-210-0x0000000000000000-mapping.dmp
  • memory/1896-209-0x0000000000000000-mapping.dmp
  • memory/1896-211-0x0000000000000000-mapping.dmp
  • memory/2236-10-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
    Filesize

    4KB

  • memory/2236-13-0x0000000005570000-0x0000000005571000-memory.dmp
    Filesize

    4KB

  • memory/2544-57-0x0000000005230000-0x0000000005231000-memory.dmp
    Filesize

    4KB

  • memory/2544-49-0x0000000004C00000-0x0000000004C01000-memory.dmp
    Filesize

    4KB

  • memory/2544-50-0x0000000004C00000-0x0000000004C01000-memory.dmp
    Filesize

    4KB

  • memory/2836-203-0x0000000005690000-0x0000000005691000-memory.dmp
    Filesize

    4KB

  • memory/2836-192-0x0000000004D60000-0x0000000004D61000-memory.dmp
    Filesize

    4KB

  • memory/3304-70-0x0000000004AD0000-0x0000000004AD1000-memory.dmp
    Filesize

    4KB

  • memory/3304-62-0x00000000045A0000-0x00000000045A1000-memory.dmp
    Filesize

    4KB

  • memory/3312-2-0x00000000045A0000-0x00000000045A1000-memory.dmp
    Filesize

    4KB

  • memory/3312-5-0x0000000004AD0000-0x0000000004AD1000-memory.dmp
    Filesize

    4KB

  • memory/3312-3-0x00000000045A0000-0x00000000045A1000-memory.dmp
    Filesize

    4KB

  • memory/3376-9-0x0000000005470000-0x0000000005471000-memory.dmp
    Filesize

    4KB

  • memory/3376-6-0x0000000004D40000-0x0000000004D41000-memory.dmp
    Filesize

    4KB

  • memory/3380-212-0x00000000047B0000-0x00000000047B1000-memory.dmp
    Filesize

    4KB

  • memory/3408-21-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
    Filesize

    4KB

  • memory/3408-18-0x00000000047B0000-0x00000000047B1000-memory.dmp
    Filesize

    4KB

  • memory/4272-17-0x0000000005630000-0x0000000005631000-memory.dmp
    Filesize

    4KB

  • memory/4272-14-0x0000000004C80000-0x0000000004C81000-memory.dmp
    Filesize

    4KB

  • memory/4572-85-0x0000000004730000-0x0000000004731000-memory.dmp
    Filesize

    4KB

  • memory/4572-95-0x00000000050E0000-0x00000000050E1000-memory.dmp
    Filesize

    4KB

  • memory/4804-0-0x0000000002693000-0x0000000002694000-memory.dmp
    Filesize

    4KB

  • memory/4804-1-0x0000000002880000-0x0000000002881000-memory.dmp
    Filesize

    4KB