Analysis

  • max time kernel
    873s
  • max time network
    958s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-08-2024 19:02

General

  • Target

    outaukaa.js

  • Size

    726KB

  • MD5

    914de97efaa32ba7dab129ccd14677b3

  • SHA1

    7501c4a79484a62f9f01d4a22d0e454fc165c16f

  • SHA256

    d632551161e59bbc94687fda33925eb227c77f2da0b38a953cbfbffa14f68534

  • SHA512

    1f37e21a042214bc2c5b099f3633f102469b6d03e6d19090dc4602fec627dd89bf7e5bcf912691528c25aff8197dd4205807da1d47ac6ed6d642ce23340eb3b3

  • SSDEEP

    12288:lSFYBUZL2VWmqCzDfJMINm1PT3UXjxbqTMnvR:hUZ2VWmFxMIN2TE9eavR

Malware Config

Signatures

  • Detects Latrodectus 1 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Blocklisted process makes network request 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Windows directory 10 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\outaukaa.js
    1⤵
    • Blocklisted process makes network request
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:4988
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B86B30A8F5E9611BCA825C84D9B8F358
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4692
    • C:\Windows\Installer\MSI721A.tmp
      "C:\Windows\Installer\MSI721A.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\tz6.dll, NvCreateMPEG4MuxSink
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1956
  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\tz6.dll, NvCreateMPEG4MuxSink
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Windows\System32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c241fca1.dll", NvCreateMPEG4MuxSink
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:4788
  • \??\c:\windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c241fca1.dll", NvCreateMPEG4MuxSink
    1⤵
    • Loads dropped DLL
    PID:3000
  • \??\c:\windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c241fca1.dll", NvCreateMPEG4MuxSink
    1⤵
    • Loads dropped DLL
    PID:2032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e57714a.rbs

    Filesize

    1KB

    MD5

    8339e1f533b07cb5e965c4a18d5581cc

    SHA1

    833bd97daac7fc5eaf70a26d44064f6cea1cfacf

    SHA256

    6252f13a9e2c246f4804e29685e7bce225ca42bb42a0899f4fce63f98ccc10a9

    SHA512

    96aee6cd464f87e4d63200c4aee32a7edd5d57cd762b8b9cbd0b749c89664f8e3d76f9dae5dbff2428f98e38db51a11f9518e10fc41886211c08b67e751e0b3d

  • C:\Users\Admin\AppData\Roaming\tz6.dll

    Filesize

    1.1MB

    MD5

    11bba295ee381161292c384c2eca7a0c

    SHA1

    2ce64388e396af0c1d96c8544fca6cfee0644f54

    SHA256

    4dabba4dbabba2b5201fca7e525859946ad860e2693574dc2a6d18348b0c8b95

    SHA512

    42d926b2a6a4dc99f264a7a38ab951e55f5b126313d8f3250698aca65aea6330030940c91179b29b563c625ddd8f2672ddb7ec3a4f440ffe32dcd3d6cb982f55

  • C:\Windows\Installer\MSI6467.tmp

    Filesize

    1.6MB

    MD5

    329259260ebe046b0e80bec91f632ba0

    SHA1

    db1184c14af32cf859d7f089d1dacc685257cc11

    SHA256

    334c3f529b1c580ea83e2ea1e85b7a937dcceb3dd3b2a533afb936f53100c222

    SHA512

    cfa0235623ec962266dbe9bcba5eac4535eff365aa784e6cf4d2a877aa6fedcc0801e5ba751b35ad176997337b72e4141f42ee07faf1017abcfda42b3228b2a4

  • C:\Windows\Installer\MSI6EB9.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSI721A.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

  • memory/1648-51-0x0000000180000000-0x0000000180122000-memory.dmp

    Filesize

    1.1MB

  • memory/4788-65-0x000002388E2A0000-0x000002388E2B6000-memory.dmp

    Filesize

    88KB