Overview

overview

10

Static

static

10

0242b77912...1c.exe

windows7-x64

10

0242b77912...1c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 09:26

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General

  • Target

    0242b77912d11030997cbf549f41a61c.exe

  • Size

    37KB

  • MD5

    0242b77912d11030997cbf549f41a61c

  • SHA1

    d0fabf4bf6adff8f2ae3f827bf0a815fe00513cf

  • SHA256

    d143d732effee86f0bc7a3862cfbc20b3ff1f0759aa997b7a8a3e5568fdd4337

  • SHA512

    52d1b86eb23d6bca79c2752a3a5d43ac5617495a8b0a9d387492e8eef9a56067913ddb79b6dab7228bde473cdca9713d69d642f6b04eac52bbb6cd15e23c706c

  • SSDEEP

    384:oalQmY98iM6caSGAZ0ytfBPGHlegiuIWnrAF+rMRTyN/0L+EcoinblneHQM3epzS:9QmGp2Z3tfBPGk9udrM+rMRa8NuW/t

Score
10/10
njratdibilevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Dibil

C2

7.tcp.eu.ngrok.io:18097

Mutex

7bb786d3a71613dbb1f2bee12d98405a

Attributes
  • reg_key

    7bb786d3a71613dbb1f2bee12d98405a

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0242b77912d11030997cbf549f41a61c.exe
    "C:\Users\Admin\AppData\Local\Temp\0242b77912d11030997cbf549f41a61c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe
      "C:\Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:760
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe" "Realtek HD Audio Universal Windows.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

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

System Information Discovery

1
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe
    Filesize

    37KB

    MD5

    0242b77912d11030997cbf549f41a61c

    SHA1

    d0fabf4bf6adff8f2ae3f827bf0a815fe00513cf

    SHA256

    d143d732effee86f0bc7a3862cfbc20b3ff1f0759aa997b7a8a3e5568fdd4337

    SHA512

    52d1b86eb23d6bca79c2752a3a5d43ac5617495a8b0a9d387492e8eef9a56067913ddb79b6dab7228bde473cdca9713d69d642f6b04eac52bbb6cd15e23c706c

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe
    Filesize

    37KB

    MD5

    0242b77912d11030997cbf549f41a61c

    SHA1

    d0fabf4bf6adff8f2ae3f827bf0a815fe00513cf

    SHA256

    d143d732effee86f0bc7a3862cfbc20b3ff1f0759aa997b7a8a3e5568fdd4337

    SHA512

    52d1b86eb23d6bca79c2752a3a5d43ac5617495a8b0a9d387492e8eef9a56067913ddb79b6dab7228bde473cdca9713d69d642f6b04eac52bbb6cd15e23c706c

    Download Submit
  • \Users\Admin\AppData\Roaming\Realtek HD Audio Universal Windows.exe
    Filesize

    37KB

    MD5

    0242b77912d11030997cbf549f41a61c

    SHA1

    d0fabf4bf6adff8f2ae3f827bf0a815fe00513cf

    SHA256

    d143d732effee86f0bc7a3862cfbc20b3ff1f0759aa997b7a8a3e5568fdd4337

    SHA512

    52d1b86eb23d6bca79c2752a3a5d43ac5617495a8b0a9d387492e8eef9a56067913ddb79b6dab7228bde473cdca9713d69d642f6b04eac52bbb6cd15e23c706c

    Download Submit
  • memory/368-63-0x0000000000000000-mapping.dmp
    Download
  • memory/620-54-0x0000000075711000-0x0000000075713000-memory.dmp
    Filesize

    8KB

    Download
  • memory/620-55-0x0000000074C10000-0x00000000751BB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/620-61-0x0000000074C10000-0x00000000751BB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/760-57-0x0000000000000000-mapping.dmp
    Download
  • memory/760-62-0x0000000074C10000-0x00000000751BB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/760-65-0x0000000074C10000-0x00000000751BB000-memory.dmp
    Filesize

    5.7MB

    Download