Analysis

  • max time kernel
    141s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-05-2024 04:35

General

  • Target

    e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe

  • Size

    14KB

  • MD5

    221806399f715e4b84f7ccacaaccb38c

  • SHA1

    46b1e50a99d136ffa48426c6120122bb176a654f

  • SHA256

    e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b

  • SHA512

    b8ea09eeeb95eee14c4e7cabd0b26b9a4b5283843d3141130df7b95bf63e83533c79a7e1b4911391fdd6fd01c864126ebfd9ccb01c499e729add13f7535deab0

  • SSDEEP

    384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLPo:IO3EVdV0YXd4DuicNV3zo

Score
9/10

Malware Config

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 6 IoCs
  • UPX dump on OEP (original entry point) 8 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 8 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe
    "C:\Users\Admin\AppData\Local\Temp\e9f7d5b7c1d5df057da73058dfc3934c523ba2e6a2f143374aa46d4eb3511b2b.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5108
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\kqchost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:4592
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E9F7D5~1.EXE > nul
      2⤵
        PID:2860
    • C:\Windows\Debug\kqchost.exe
      C:\Windows\Debug\kqchost.exe
      1⤵
      • Executes dropped EXE
      PID:1236

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\debug\kqchost.exe

      Filesize

      14KB

      MD5

      dc65ea7a6ac7d4188f55ba2095e07dfb

      SHA1

      3a2a2b066c3dd4d373e94bb86c6eed8d1377943d

      SHA256

      71434cfe9be291eb081f26663bf2b5b8d154ac5d0d365587412e91e4c5a108c0

      SHA512

      f86cb8b1c911038606a36303d72ac59283eea8a2704857b0a42e63e9641527f1484dd23e67b653c3f8ba02513c83ab74eb7425a8e1ba540bc4554860150c8291

    • memory/1236-5-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1236-7-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1236-8-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1236-11-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1236-14-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1236-18-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/5108-0-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB