Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 07:37

General

  • Target

    8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe

  • Size

    4.0MB

  • MD5

    bc00cbdffdcddd665e462d825780cd94

  • SHA1

    846f16cdc4078a37e0db43db2214eda8823d0126

  • SHA256

    8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81

  • SHA512

    a689e928e4533c7f05ef99a49b7c1300d560fb9990a2d10ae2aa9e4d8d4b66aaef9d9ea25ca8747c0cab8c4e7a74b300f46416624e2637b43e26a460ca27b229

  • SSDEEP

    49152:rYREXSVMDi33PmBcB/FdWJ4wklBDP1dGXrIDhmIeYZTTPmBDIQm/Yl7Y53K:E2SVMD8UcskDP1dOcdsXGYl7Y

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 9 IoCs
  • UPX packed file 23 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
    "C:\Users\Admin\AppData\Local\Temp\8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\look2.exe
      C:\Users\Admin\AppData\Local\Temp\\look2.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:1744
    • C:\Users\Admin\AppData\Local\Temp\HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
      C:\Users\Admin\AppData\Local\Temp\HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Users\Admin\AppData\Local\Temp\HD_HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
        C:\Users\Admin\AppData\Local\Temp\HD_HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2748
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "svchcst"
    1⤵
      PID:2904
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "svchcst"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\svchcst.exe
        C:\Windows\system32\svchcst.exe "c:\windows\system32\259404484.bat",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2704

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Defense Evasion

    Modify Registry

    2
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\HD_X.dat
      Filesize

      1.1MB

      MD5

      ed82af42d1ab0689550a944b491cc741

      SHA1

      d2c34187ed9d47f97f10e41301f5bfca59f37335

      SHA256

      80a7a67ec7a406aa9907adf727c8ce3dd6a20f66ed00e775c1d53f7e67e08fc4

      SHA512

      4f7884873a39ca737bba04da79550f173265403063eaf031f0ccb9a5a45e81fbb291d5a920a57daa9ece35749c01137a87616563dc67a2992d52fbcb59cb98df

    • \Users\Admin\AppData\Local\Temp\HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
      Filesize

      2.9MB

      MD5

      8826bb402746a12b2934537fce8283df

      SHA1

      29460c3b94edb618760f3e5a8143bfac09b48beb

      SHA256

      92db3467bdaabfe38da52be99086619768c0c0f3cd8ac20983d587a4b2468283

      SHA512

      ef0a7ab40305f2d28641f286ad6f1f871a8cfc71ea4b924d2ecb26f939673eff66d2e38d67c5abc65af9d19d1f2b4ddc5309aeac855d2138f067adbd0ffea394

    • \Users\Admin\AppData\Local\Temp\HD_HD_8c613997658954ba6f7f068ad84eee89aedeb42705006d1b32f33c322d2b1f81.exe
      Filesize

      1.4MB

      MD5

      0a489e6d166157eb4ab2177b8eede2e0

      SHA1

      63c47dab3eb23149300e992bcaabfd33e59c8681

      SHA256

      dee1218e1d773939eebcb8ac7d39f00739e3f539c53c2027098b0c01a05c1ebe

      SHA512

      0b14ac6956e5e3091b69a203606cd378d3e8acad9f2e29a42b24e3fe21b56b26841dcc345df8c5aec5033f23e391494c8e779db320347d4f20207b9c94977ba2

    • \Users\Admin\AppData\Local\Temp\look2.exe
      Filesize

      337KB

      MD5

      2f3b6f16e33e28ad75f3fdaef2567807

      SHA1

      85e907340faf1edfc9210db85a04abd43d21b741

      SHA256

      86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

      SHA512

      db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

    • \Windows\SysWOW64\259404484.bat
      Filesize

      51KB

      MD5

      8525c5243dc20f75a89d1411c6e45689

      SHA1

      2198bed715c72101e648e1466cd46464c2ebec1e

      SHA256

      168a75cc9154a6b1cf742a2d5db3901f53bbea1002f8a72f6bf501d914b02ced

      SHA512

      31e75324d7f2d39ae688b4383916701616e82c6ad236fc24065e4868bbd641d2d3dcded75fa6e10494bf4933c0a9324971a7fbf82accfb3685166b6101e0713e

    • \Windows\SysWOW64\svchcst.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2748-66-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-60-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-84-0x0000000000400000-0x00000000005AC000-memory.dmp
      Filesize

      1.7MB

    • memory/2748-81-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-77-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-75-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-73-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-71-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-69-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-107-0x0000000000400000-0x00000000005AC000-memory.dmp
      Filesize

      1.7MB

    • memory/2748-58-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-64-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-62-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-83-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-56-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-54-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-52-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-50-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-48-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-46-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-44-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-42-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-41-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-39-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2748-79-0x0000000010000000-0x000000001003F000-memory.dmp
      Filesize

      252KB

    • memory/2836-33-0x0000000002B10000-0x0000000002CBC000-memory.dmp
      Filesize

      1.7MB

    • memory/2836-22-0x0000000010000000-0x0000000010017000-memory.dmp
      Filesize

      92KB

    • memory/2836-68-0x0000000002B10000-0x0000000002CBC000-memory.dmp
      Filesize

      1.7MB