Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-12-2024 11:00

General

  • Target

    9d879dbfa312986e04cfb1ba762ee26a0760c0743d5249d632acc53c5e7e5382_Sigmanly.exe

  • Size

    2.5MB

  • MD5

    0cb43bc79db2f79d3bf41488b8e44b14

  • SHA1

    183aaf34914b6233dee53311abb3b58512bab255

  • SHA256

    9d879dbfa312986e04cfb1ba762ee26a0760c0743d5249d632acc53c5e7e5382

  • SHA512

    dc253e1c96441fa285a6f9201382520e0fe6a43da2bcd42a88426178d49393ee4ffb55ad26367b3a285c4ac05b04071e63f9613ecae1c248717d2a43af729a86

  • SSDEEP

    49152:zgf2+69hPNE5E90V1/3+XEnP5mgLh0ZVpma0uoTtsS+kDUMDkeHkV8:i2+6zeG90VVu0nPYgima0uoTW1kTkeHI

Malware Config

Signatures

  • Xmrig family
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 9 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Creates new service(s) 2 TTPs
  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Power Settings 1 TTPs 8 IoCs

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 14 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 4 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d879dbfa312986e04cfb1ba762ee26a0760c0743d5249d632acc53c5e7e5382_Sigmanly.exe
    "C:\Users\Admin\AppData\Local\Temp\9d879dbfa312986e04cfb1ba762ee26a0760c0743d5249d632acc53c5e7e5382_Sigmanly.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2848
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2824
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Drops file in Windows directory
        PID:2368
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe delete "XXXZEMGH"
      2⤵
      • Launches sc.exe
      PID:1244
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe create "XXXZEMGH" binpath= "C:\ProgramData\mcqdihxfmfum\xkmlhavdrgzq.exe" start= "auto"
      2⤵
      • Launches sc.exe
      PID:2320
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe stop eventlog
      2⤵
      • Launches sc.exe
      PID:560
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe start "XXXZEMGH"
      2⤵
      • Launches sc.exe
      PID:884
  • C:\ProgramData\mcqdihxfmfum\xkmlhavdrgzq.exe
    C:\ProgramData\mcqdihxfmfum\xkmlhavdrgzq.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:556
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2508
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Drops file in Windows directory
        PID:2308
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2536
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:2996
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:400
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
      2⤵
      • Power Settings
      • Suspicious use of AdjustPrivilegeToken
      PID:816
    • C:\Windows\system32\conhost.exe
      C:\Windows\system32\conhost.exe
      2⤵
        PID:2540
      • C:\Windows\system32\conhost.exe
        conhost.exe
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3008

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\mcqdihxfmfum\xkmlhavdrgzq.exe

      Filesize

      2.5MB

      MD5

      0cb43bc79db2f79d3bf41488b8e44b14

      SHA1

      183aaf34914b6233dee53311abb3b58512bab255

      SHA256

      9d879dbfa312986e04cfb1ba762ee26a0760c0743d5249d632acc53c5e7e5382

      SHA512

      dc253e1c96441fa285a6f9201382520e0fe6a43da2bcd42a88426178d49393ee4ffb55ad26367b3a285c4ac05b04071e63f9613ecae1c248717d2a43af729a86

    • memory/556-17-0x000000001A1B0000-0x000000001A492000-memory.dmp

      Filesize

      2.9MB

    • memory/556-18-0x00000000004A0000-0x00000000004A8000-memory.dmp

      Filesize

      32KB

    • memory/2540-19-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2540-20-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2540-21-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2540-22-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2540-26-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2540-24-0x0000000140000000-0x000000014000E000-memory.dmp

      Filesize

      56KB

    • memory/2824-12-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/2824-8-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/2824-11-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/2824-9-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/2824-10-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/2824-5-0x000000001B450000-0x000000001B732000-memory.dmp

      Filesize

      2.9MB

    • memory/2824-4-0x000007FEF5A9E000-0x000007FEF5A9F000-memory.dmp

      Filesize

      4KB

    • memory/2824-6-0x0000000002720000-0x0000000002728000-memory.dmp

      Filesize

      32KB

    • memory/2824-7-0x000007FEF57E0000-0x000007FEF617D000-memory.dmp

      Filesize

      9.6MB

    • memory/3008-31-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-28-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-32-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-29-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-33-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-34-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-35-0x00000000000F0000-0x0000000000110000-memory.dmp

      Filesize

      128KB

    • memory/3008-30-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-39-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-40-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-38-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-36-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-37-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-42-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB

    • memory/3008-41-0x0000000140000000-0x0000000140835000-memory.dmp

      Filesize

      8.2MB