njrat | d7c234e4663d1afe2f9ac871ed2e989832226359bb3f1d97fc96b2ffbdba0d9d

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 01:16

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General

Target
0cd33507a435af166b539f9111344f80.exe
Size 116KB
Sample240611-bmsstsyfqm
SHA256 d7c234e4663d1afe2f9ac871ed2e989832226359bb3f1d97fc96b2ffbdba0d9d
MD5 0cd33507a435af166b539f9111344f80
SHA1 3dffdbb3400a79e5e8f5049c13552e3165e6de80
SHA512 d92ea4e05a374fc13dd184ce60abdbe0a2774bc9157f53a8a78a791c9fb1c9cdd24a345e6719b8a0501ab20e46b75ad52e057193a814062f3535cc498f96d2ec
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDIW3:P5eznsjsguGDFqGZ2rDIW3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3912	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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	0cd33507a435af166b539f9111344f80.exe

Executes dropped EXE 2 IoCs

pid	Process
3940	chargeable.exe
2420	chargeable.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	0cd33507a435af166b539f9111344f80.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0cd33507a435af166b539f9111344f80.exe"	0cd33507a435af166b539f9111344f80.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3940 set thread context of 2420	3940	chargeable.exe	86

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe
Token: 33	2420	chargeable.exe
Token: SeIncBasePriorityPrivilege	2420	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 3940	4268	0cd33507a435af166b539f9111344f80.exe	85
PID 4268 wrote to memory of 3940	4268	0cd33507a435af166b539f9111344f80.exe	85
PID 4268 wrote to memory of 3940	4268	0cd33507a435af166b539f9111344f80.exe	85
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 3940 wrote to memory of 2420	3940	chargeable.exe	86
PID 2420 wrote to memory of 3912	2420	chargeable.exe	87
PID 2420 wrote to memory of 3912	2420	chargeable.exe	87
PID 2420 wrote to memory of 3912	2420	chargeable.exe	87

C:\Users\Admin\AppData\Local\Temp\0cd33507a435af166b539f9111344f80.exe
"C:\Users\Admin\AppData\Local\Temp\0cd33507a435af166b539f9111344f80.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4268
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3940
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2420
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:3912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 116KB
SHA256 3e55f384a447b9f1da1d6635091e4bd7d3bf63232e001ffc12583606cd09a370
MD5 9b1b6839feb8666f0f9c65f19ec95995
SHA1 f2d12edd03e3fe73fa6ad56948d66d88a1e5a401
SHA512 e5855839f010b507f6a802468b4abb1251a8a8e1e01612896f3407a14281f31f795254122d1eb66267f76c13753cf7082ca429ddf6f2e869f9d434122ec218d4
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDIWi:P5eznsjsguGDFqGZ2rDIWi
MD5 SHA1 SHA512 SSDEEP

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memory/2420-25-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/2420-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2420-26-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/2420-28-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/3940-17-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/3940-19-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/3940-20-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/3940-27-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/4268-2-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/4268-18-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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memory/4268-0-0x0000000074DF2000-0x0000000074DF3000-memory.dmp

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memory/4268-1-0x0000000074DF0000-0x00000000753A1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads