Overview

overview

10

Static

static

10

28d9c94fe4...7c.exe

windows7_x64

10

28d9c94fe4...7c.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    172s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-07-2022 15:50

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General

  • Target

    28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c.exe

  • Size

    93KB

  • MD5

    ad5ffd5268a01b519b539f1233b52fee

  • SHA1

    1dde3b4a1c4b9b1ac753d649bf16f14744331e39

  • SHA256

    28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c

  • SHA512

    f73539047ac22ec1e3c1dd73401116b35cb43d305229f2c3bbc1ba89f1129fd05db8cb8db4bda7c8ac4970bc07fdb578568d80aa4e1bdaec319530f31ea32bd1

Score
10/10
njrathackerevasiontrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

hacker

C2

FRANSESCOTI3LjAuFRANSESCOC4x:MTYwNA==

Mutex

dfd6ed83b13338db2ca4f209d9a7474f

Attributes
  • reg_key

    dfd6ed83b13338db2ca4f209d9a7474f

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 3 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 4 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c.exe
    "C:\Users\Admin\AppData\Local\Temp\28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1928
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"
        3⤵
        • Modifies Windows Firewall
        PID:4508
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4440

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Privilege Escalation

Defense Evasion

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\Roaming\app
    Filesize

    4B

    MD5

    5fa01e3399c29de16299d5f4ac743fb2

    SHA1

    04e29a03c4a56cf097701f34d6d2999b93035327

    SHA256

    6918b0e9f3af6051db0828a0ec9b353222b84164dab5ed3c85310eefce166223

    SHA512

    5492642165fb12e782f71ba84e8a673ecc047a8a8b3f2f59b64fa8200212326d36ed576fd119ffd0134f1daa03d14069ead81f0e29c2d59de10cdf4bbf2dc90c

    Download Submit
  • C:\Users\Admin\AppData\Roaming\server.exe
    Filesize

    93KB

    MD5

    ad5ffd5268a01b519b539f1233b52fee

    SHA1

    1dde3b4a1c4b9b1ac753d649bf16f14744331e39

    SHA256

    28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c

    SHA512

    f73539047ac22ec1e3c1dd73401116b35cb43d305229f2c3bbc1ba89f1129fd05db8cb8db4bda7c8ac4970bc07fdb578568d80aa4e1bdaec319530f31ea32bd1

    Download Submit
  • C:\Users\Admin\AppData\Roaming\server.exe
    Filesize

    93KB

    MD5

    ad5ffd5268a01b519b539f1233b52fee

    SHA1

    1dde3b4a1c4b9b1ac753d649bf16f14744331e39

    SHA256

    28d9c94fe4df6182e2a59cd806837ea242dd7971a44cc6f132220ab45e3ec27c

    SHA512

    f73539047ac22ec1e3c1dd73401116b35cb43d305229f2c3bbc1ba89f1129fd05db8cb8db4bda7c8ac4970bc07fdb578568d80aa4e1bdaec319530f31ea32bd1

    Download Submit
  • memory/1928-137-0x0000000000000000-mapping.dmp
    Download
  • memory/2348-130-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2348-134-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4440-139-0x0000000000000000-mapping.dmp
    Download
  • memory/4508-138-0x0000000000000000-mapping.dmp
    Download
  • memory/4992-131-0x0000000000000000-mapping.dmp
    Download
  • memory/4992-136-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4992-140-0x0000000075400000-0x00000000759B1000-memory.dmp
    Filesize

    5.7MB

    Download