Overview

overview

10

Static

static

a88d8cc771...b6.exe

windows7-x64

8

a88d8cc771...b6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    159s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 08:41

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General

  • Target

    a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6.exe

  • Size

    91KB

  • MD5

    c2887dc9cc1ee1a2a0d5e145b7753b8d

  • SHA1

    d617275d213589106069904de3a75cce2966f456

  • SHA256

    a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6

  • SHA512

    b3bb53a7c82f1a33baf42ae908ad23ff0cd86a20edc6cb13068003b472abe0a5b08c4d852a730c284ff2f109013ad8c825a1ffc60f6b356a89d7f44442c64bd4

  • SSDEEP

    768:6JaHSmit+p/t5PhSsDPkwL2VY607aDXRKP4k4oh7Ta96SAKlZCKFcbFL:6JEPiY/L5jlYY66arRKP4k4WXP+CbL

Score
10/10
njratevasionpersistencetrojan

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6.exe
    "C:\Users\Admin\AppData\Local\Temp\a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Local\Temp\GoogleUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\GoogleUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4604
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\GoogleUpdate.exe" "GoogleUpdate.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:460

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\GoogleUpdate.exe
    Filesize

    91KB

    MD5

    c2887dc9cc1ee1a2a0d5e145b7753b8d

    SHA1

    d617275d213589106069904de3a75cce2966f456

    SHA256

    a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6

    SHA512

    b3bb53a7c82f1a33baf42ae908ad23ff0cd86a20edc6cb13068003b472abe0a5b08c4d852a730c284ff2f109013ad8c825a1ffc60f6b356a89d7f44442c64bd4

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\GoogleUpdate.exe
    Filesize

    91KB

    MD5

    c2887dc9cc1ee1a2a0d5e145b7753b8d

    SHA1

    d617275d213589106069904de3a75cce2966f456

    SHA256

    a88d8cc771b86d5118c2b9b88d4779898c7ff81d784473518b4313b4dce9f7b6

    SHA512

    b3bb53a7c82f1a33baf42ae908ad23ff0cd86a20edc6cb13068003b472abe0a5b08c4d852a730c284ff2f109013ad8c825a1ffc60f6b356a89d7f44442c64bd4

    Download Submit
  • memory/460-137-0x0000000000000000-mapping.dmp
    Download
  • memory/2996-132-0x00007FFFDE600000-0x00007FFFDF036000-memory.dmp
    Filesize

    10.2MB

    Download
  • memory/4604-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4604-136-0x00007FFFDE600000-0x00007FFFDF036000-memory.dmp
    Filesize

    10.2MB

    Download