njrat | 81bd058bdfbfc79e61c1886729fb82f958fec8d935f94a719e42d5cf41282e81

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2022 13:19

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General

Target

32ecbfcd1b769c857657f0455bfae8de.exe
Size

37KB
MD5

32ecbfcd1b769c857657f0455bfae8de
SHA1

23f3a0fa867d4655d5b60af33494426c1c26980a
SHA256

81bd058bdfbfc79e61c1886729fb82f958fec8d935f94a719e42d5cf41282e81
SHA512

cb61ee071ed5d47e71100198bf52099005c4af8ab91252212a5fdf5400bc987519d9c4447a09edb9c810961b989791acfffe136a2ade4206c60689b4e22c91ef
SSDEEP

384:CkG23hUidkGXR21cGMy8Pqq53tGFlymkirAF+rMRTyN/0L+EcoinblneHQM3epz3:rG23ZLGv8Pqq58imHrM+rMRa8NuImt

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

211.213.183.65:8639

Mutex

831c90d817bdd09912ba4f08d8a5468b

Attributes

reg_key
831c90d817bdd09912ba4f08d8a5468b
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
5056	system.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
960	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	32ecbfcd1b769c857657f0455bfae8de.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe
Token: 33	5056	system.exe
Token: SeIncBasePriorityPrivilege	5056	system.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 5056	4588	32ecbfcd1b769c857657f0455bfae8de.exe	85
PID 4588 wrote to memory of 5056	4588	32ecbfcd1b769c857657f0455bfae8de.exe	85
PID 4588 wrote to memory of 5056	4588	32ecbfcd1b769c857657f0455bfae8de.exe	85
PID 5056 wrote to memory of 960	5056	system.exe	88
PID 5056 wrote to memory of 960	5056	system.exe	88
PID 5056 wrote to memory of 960	5056	system.exe	88

C:\Users\Admin\AppData\Local\Temp\32ecbfcd1b769c857657f0455bfae8de.exe
"C:\Users\Admin\AppData\Local\Temp\32ecbfcd1b769c857657f0455bfae8de.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Users\Admin\AppData\Local\Temp\system.exe
  "C:\Users\Admin\AppData\Local\Temp\system.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system.exe

Filesize
37KB

MD5
32ecbfcd1b769c857657f0455bfae8de

SHA1
23f3a0fa867d4655d5b60af33494426c1c26980a

SHA256
81bd058bdfbfc79e61c1886729fb82f958fec8d935f94a719e42d5cf41282e81

SHA512
cb61ee071ed5d47e71100198bf52099005c4af8ab91252212a5fdf5400bc987519d9c4447a09edb9c810961b989791acfffe136a2ade4206c60689b4e22c91ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe

Filesize
37KB

MD5
32ecbfcd1b769c857657f0455bfae8de

SHA1
23f3a0fa867d4655d5b60af33494426c1c26980a

SHA256
81bd058bdfbfc79e61c1886729fb82f958fec8d935f94a719e42d5cf41282e81

SHA512
cb61ee071ed5d47e71100198bf52099005c4af8ab91252212a5fdf5400bc987519d9c4447a09edb9c810961b989791acfffe136a2ade4206c60689b4e22c91ef

Download Submit
memory/4588-132-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4588-136-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/5056-137-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/5056-139-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download