Analysis

  • max time kernel
    163s
  • max time network
    212s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    30-08-2021 06:42

General

  • Target

    fcaac08ec995632f0e88cfba08c74c6b.exe

  • Size

    213KB

  • MD5

    fcaac08ec995632f0e88cfba08c74c6b

  • SHA1

    33a121fec293e3a59ba27eca37b65cd2fa41741d

  • SHA256

    b6246092f49d5c01b9e6f5762e169c87fcae95adb22a68ecb7b3896cf373f661

  • SHA512

    1bcf81201507c240ffcca75beeab1523d2b6012cecd17afe045553ed85ca2d177d719b0b47fe2a400f9778fa7698cb82650358ad62c56f68b9dd07fea9a0bb63

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

fe582536ec580228180f270f7cb80a867860e010

Attributes
  • url4cnc

    https://telete.in/xylichanjk

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

d02c5d65069fc7ce1993e7c52edf0c9c4c195c81

Attributes
  • url4cnc

    https://telete.in/open3entershift

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Nirsoft 7 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 10 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fcaac08ec995632f0e88cfba08c74c6b.exe
    "C:\Users\Admin\AppData\Local\Temp\fcaac08ec995632f0e88cfba08c74c6b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Users\Admin\AppData\Local\Temp\fcaac08ec995632f0e88cfba08c74c6b.exe
      "C:\Users\Admin\AppData\Local\Temp\fcaac08ec995632f0e88cfba08c74c6b.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1656
  • C:\Users\Admin\AppData\Local\Temp\45F6.exe
    C:\Users\Admin\AppData\Local\Temp\45F6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1116
  • C:\Users\Admin\AppData\Local\Temp\46E1.exe
    C:\Users\Admin\AppData\Local\Temp\46E1.exe
    1⤵
    • Executes dropped EXE
    • Modifies system certificate store
    PID:1060
  • C:\Users\Admin\AppData\Local\Temp\9C8F.exe
    C:\Users\Admin\AppData\Local\Temp\9C8F.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\AppData\Local\Temp\9C8F.exe
      C:\Users\Admin\AppData\Local\Temp\9C8F.exe
      2⤵
      • Executes dropped EXE
      PID:1392
    • C:\Users\Admin\AppData\Local\Temp\9C8F.exe
      C:\Users\Admin\AppData\Local\Temp\9C8F.exe
      2⤵
        PID:1964
    • C:\Users\Admin\AppData\Local\Temp\A46D.exe
      C:\Users\Admin\AppData\Local\Temp\A46D.exe
      1⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:1500
    • C:\Users\Admin\AppData\Local\Temp\A9AB.exe
      C:\Users\Admin\AppData\Local\Temp\A9AB.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:812
      • C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1728
        • C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe" /SpecialRun 4101d8 1728
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:776
    • C:\Users\Admin\AppData\Local\Temp\AAF4.exe
      C:\Users\Admin\AppData\Local\Temp\AAF4.exe
      1⤵
      • Executes dropped EXE
      PID:112
    • C:\Users\Admin\AppData\Local\Temp\AEBC.exe
      C:\Users\Admin\AppData\Local\Temp\AEBC.exe
      1⤵
      • Executes dropped EXE
      PID:1312
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:1068
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:1612
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:1616
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:2024

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\45F6.exe

              MD5

              a69e12607d01237460808fa1709e5e86

              SHA1

              4a12f82aee1c90e70cdf6be863ce1a749c8ae411

              SHA256

              188e05efb42c1f7fdb5c910a6614f710a87ae642b23ac9ffe3f75246744865bc

              SHA512

              7533e6da6bac0405fc8b608da8020b54b6ee02592e6fd40ea342e130a8a876ae5ef4a1fd636d95e76339dbf8be45cecbd22ca2d0a4635b055ffafec3d7e15284

            • C:\Users\Admin\AppData\Local\Temp\46E1.exe

              MD5

              4705cd54ff9454c78be18f8705515c4b

              SHA1

              810de86f01354f0c635a051f5bd69c57b201329f

              SHA256

              fb2737e74e0da1b918f0af35ac05d9906ea73b86eac21d69a476ba6770825a1c

              SHA512

              1e2391d3effadaaf892dc8f2c1967685560273442ee09e8ef021d14eb29ae06ec627368f168edc1268af9a1ab0c47da003a8cf7cecc990f73329ed0b5890be41

            • C:\Users\Admin\AppData\Local\Temp\9C8F.exe

              MD5

              cd9841fd759299a5fd2e4536fd40c378

              SHA1

              63c2b77f595e6a49bcbfc7f1f076721d5265fb7a

              SHA256

              7cf5279923daf2aeec6ed6869d75088fdf63449838db99d6440118feb8360293

              SHA512

              27b9dfa933c4d606b9edd64220cab14601d5e37f16c6d9a93fdc9cf8019baaa96d4c66777ef9120af934e0d50fa7cf7b400db05028cc40ae74c2a09d9a99b20f

            • C:\Users\Admin\AppData\Local\Temp\9C8F.exe

              MD5

              cd9841fd759299a5fd2e4536fd40c378

              SHA1

              63c2b77f595e6a49bcbfc7f1f076721d5265fb7a

              SHA256

              7cf5279923daf2aeec6ed6869d75088fdf63449838db99d6440118feb8360293

              SHA512

              27b9dfa933c4d606b9edd64220cab14601d5e37f16c6d9a93fdc9cf8019baaa96d4c66777ef9120af934e0d50fa7cf7b400db05028cc40ae74c2a09d9a99b20f

            • C:\Users\Admin\AppData\Local\Temp\9C8F.exe

              MD5

              cd9841fd759299a5fd2e4536fd40c378

              SHA1

              63c2b77f595e6a49bcbfc7f1f076721d5265fb7a

              SHA256

              7cf5279923daf2aeec6ed6869d75088fdf63449838db99d6440118feb8360293

              SHA512

              27b9dfa933c4d606b9edd64220cab14601d5e37f16c6d9a93fdc9cf8019baaa96d4c66777ef9120af934e0d50fa7cf7b400db05028cc40ae74c2a09d9a99b20f

            • C:\Users\Admin\AppData\Local\Temp\A46D.exe

              MD5

              067a8002b76c49e820a9421fa3029c86

              SHA1

              fbf589bf5e44768d9ed07f6b361472e3b54bcb58

              SHA256

              9fdf1b38392cacb2490a8093fc910e2af3817e92ab459304d721919a63cbfe64

              SHA512

              4986054c30b069cc145dde03244589eb06513211723ca11cd97204c748b43c07b6f16bab7b9203c3d53a20176879eb467debf90bde43a5a66d23587243fed03a

            • C:\Users\Admin\AppData\Local\Temp\A9AB.exe

              MD5

              6a2d7f7373c59ff8be992d223b17f97f

              SHA1

              e4bfe1e9fdb7560968da08e1dfe6ed8005a97223

              SHA256

              3b8cef83d5f3b667281c3c8512b2e21d06e34a3fe7952d171854a36f557f80a9

              SHA512

              f8719c97f97ceb16ce63b832bd393edb3ef87d8d7aac1d975243cd4aac62e2775eae2b1fd2d0314348144c1b38d19b31222f70c33fdd3133a483e9392d2de0c6

            • C:\Users\Admin\AppData\Local\Temp\A9AB.exe

              MD5

              6a2d7f7373c59ff8be992d223b17f97f

              SHA1

              e4bfe1e9fdb7560968da08e1dfe6ed8005a97223

              SHA256

              3b8cef83d5f3b667281c3c8512b2e21d06e34a3fe7952d171854a36f557f80a9

              SHA512

              f8719c97f97ceb16ce63b832bd393edb3ef87d8d7aac1d975243cd4aac62e2775eae2b1fd2d0314348144c1b38d19b31222f70c33fdd3133a483e9392d2de0c6

            • C:\Users\Admin\AppData\Local\Temp\AAF4.exe

              MD5

              e99afcbb149ba6dfbdd90c034b88fe73

              SHA1

              be974111ad0a8f3870d09706ea07b5438f418798

              SHA256

              924b9935b1f2be85aa36e0158f0a55c1200cdf9046077a5b491f1aeb034c2353

              SHA512

              bf8b1f544ab9e689068f94b7ee5cfbe304b3756308d022be2e487216dd01aed0fcc2ac76e5d6b4c2f434a1125a88d5c71a2ecdafdb7bddd82447e77601c6b4a9

            • C:\Users\Admin\AppData\Local\Temp\AEBC.exe

              MD5

              e70ceaf1fc7771d3d791aedc0c2068a7

              SHA1

              97912679527c910bdf4c97265656f4c2527245db

              SHA256

              0e7b9aae7306cdb8cca2a7fa6552fd6cd03f3e2ab2e2d4ae51dfe325ff2016e5

              SHA512

              6a4c8a424e87f4a622aa20e4fd37060919cf686c32c0432eea026c12af372ffc6714c6baff46d0590a78fddf62ea7ca3eac3240846e1781d090d3867cfc2cd58

            • C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • C:\Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • \Users\Admin\AppData\Local\Temp\9C8F.exe

              MD5

              cd9841fd759299a5fd2e4536fd40c378

              SHA1

              63c2b77f595e6a49bcbfc7f1f076721d5265fb7a

              SHA256

              7cf5279923daf2aeec6ed6869d75088fdf63449838db99d6440118feb8360293

              SHA512

              27b9dfa933c4d606b9edd64220cab14601d5e37f16c6d9a93fdc9cf8019baaa96d4c66777ef9120af934e0d50fa7cf7b400db05028cc40ae74c2a09d9a99b20f

            • \Users\Admin\AppData\Local\Temp\9C8F.exe

              MD5

              cd9841fd759299a5fd2e4536fd40c378

              SHA1

              63c2b77f595e6a49bcbfc7f1f076721d5265fb7a

              SHA256

              7cf5279923daf2aeec6ed6869d75088fdf63449838db99d6440118feb8360293

              SHA512

              27b9dfa933c4d606b9edd64220cab14601d5e37f16c6d9a93fdc9cf8019baaa96d4c66777ef9120af934e0d50fa7cf7b400db05028cc40ae74c2a09d9a99b20f

            • \Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • \Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • \Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • \Users\Admin\AppData\Local\Temp\ae4be1b1-8533-4dbf-b31e-94840cfdbffb\AdvancedRun.exe

              MD5

              17fc12902f4769af3a9271eb4e2dacce

              SHA1

              9a4a1581cc3971579574f837e110f3bd6d529dab

              SHA256

              29ae7b30ed8394c509c561f6117ea671ec412da50d435099756bbb257fafb10b

              SHA512

              036e0d62490c26dee27ef54e514302e1cc8a14de8ce3b9703bf7caf79cfae237e442c27a0edcf2c4fd41af4195ba9ed7e32e894767ce04467e79110e89522e4a

            • memory/112-95-0x0000000000400000-0x0000000001DB7000-memory.dmp

              Filesize

              25.7MB

            • memory/112-87-0x0000000000000000-mapping.dmp

            • memory/112-94-0x0000000000220000-0x00000000002AF000-memory.dmp

              Filesize

              572KB

            • memory/776-119-0x0000000000000000-mapping.dmp

            • memory/812-103-0x0000000004A30000-0x0000000004A31000-memory.dmp

              Filesize

              4KB

            • memory/812-100-0x0000000004170000-0x00000000041E2000-memory.dmp

              Filesize

              456KB

            • memory/812-86-0x00000000009A0000-0x00000000009A1000-memory.dmp

              Filesize

              4KB

            • memory/812-83-0x0000000000000000-mapping.dmp

            • memory/1060-69-0x0000000000000000-mapping.dmp

            • memory/1060-72-0x0000000000310000-0x000000000039F000-memory.dmp

              Filesize

              572KB

            • memory/1060-73-0x0000000000400000-0x0000000001DC8000-memory.dmp

              Filesize

              25.8MB

            • memory/1068-107-0x0000000000130000-0x000000000019B000-memory.dmp

              Filesize

              428KB

            • memory/1068-101-0x0000000000000000-mapping.dmp

            • memory/1068-104-0x000000006F031000-0x000000006F033000-memory.dmp

              Filesize

              8KB

            • memory/1068-106-0x00000000001A0000-0x0000000000214000-memory.dmp

              Filesize

              464KB

            • memory/1116-65-0x0000000000000000-mapping.dmp

            • memory/1224-64-0x0000000002AB0000-0x0000000002AC6000-memory.dmp

              Filesize

              88KB

            • memory/1312-96-0x0000000000000000-mapping.dmp

            • memory/1500-92-0x00000000012E0000-0x00000000012E1000-memory.dmp

              Filesize

              4KB

            • memory/1500-108-0x00000000052E0000-0x00000000052E1000-memory.dmp

              Filesize

              4KB

            • memory/1500-79-0x0000000000000000-mapping.dmp

            • memory/1612-110-0x00000000000F0000-0x00000000000F7000-memory.dmp

              Filesize

              28KB

            • memory/1612-111-0x0000000000060000-0x000000000006C000-memory.dmp

              Filesize

              48KB

            • memory/1612-105-0x0000000000000000-mapping.dmp

            • memory/1616-122-0x0000000000000000-mapping.dmp

            • memory/1616-124-0x000000006E231000-0x000000006E233000-memory.dmp

              Filesize

              8KB

            • memory/1616-126-0x0000000000080000-0x000000000008B000-memory.dmp

              Filesize

              44KB

            • memory/1616-125-0x0000000000090000-0x0000000000097000-memory.dmp

              Filesize

              28KB

            • memory/1656-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

              Filesize

              8KB

            • memory/1656-61-0x0000000000402FAB-mapping.dmp

            • memory/1656-60-0x0000000000400000-0x0000000000409000-memory.dmp

              Filesize

              36KB

            • memory/1688-77-0x0000000000980000-0x0000000000981000-memory.dmp

              Filesize

              4KB

            • memory/1688-74-0x0000000000000000-mapping.dmp

            • memory/1688-82-0x0000000004950000-0x0000000004951000-memory.dmp

              Filesize

              4KB

            • memory/1728-113-0x0000000000000000-mapping.dmp

            • memory/1980-63-0x00000000001B0000-0x00000000001BA000-memory.dmp

              Filesize

              40KB

            • memory/2024-129-0x0000000000000000-mapping.dmp

            • memory/2024-130-0x0000000000070000-0x0000000000079000-memory.dmp

              Filesize

              36KB

            • memory/2024-131-0x0000000000060000-0x000000000006F000-memory.dmp

              Filesize

              60KB