njrat | da2a01e2b4e3d5b2e56d43427636e9c0a20157b1369234c91087a0083e986d3f

Analysis

max time kernel
148s
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
18/06/2024, 06:26

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General

Target
6cdaf6aa7bca7b33b37345ddd48e8e8c.exe
Size 114KB
Sample240618-g67c8a1cnc
SHA256 da2a01e2b4e3d5b2e56d43427636e9c0a20157b1369234c91087a0083e986d3f
MD5 6cdaf6aa7bca7b33b37345ddd48e8e8c
SHA1 754aabcba09611a16c978041a98e2359772b6188
SHA512 9e1bdfc39ed820531122e66254e1f638941b93db4e79c854440e5423a11759f45513db9c22828eb029c5c27bc9f3394fc32c6e52c788bf89fcc2745c28b841c7
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDS+:P5eznsjsguGDFqGZ2rD5
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
3704	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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe

Executes dropped EXE 2 IoCs

pid	Process
4000	chargeable.exe
4508	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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6cdaf6aa7bca7b33b37345ddd48e8e8c.exe"	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4000 set thread context of 4508	4000	chargeable.exe	82

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	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe
Token: 33	4508	chargeable.exe
Token: SeIncBasePriorityPrivilege	4508	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1016 wrote to memory of 4000	1016	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe	81
PID 1016 wrote to memory of 4000	1016	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe	81
PID 1016 wrote to memory of 4000	1016	6cdaf6aa7bca7b33b37345ddd48e8e8c.exe	81
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4000 wrote to memory of 4508	4000	chargeable.exe	82
PID 4508 wrote to memory of 3704	4508	chargeable.exe	83
PID 4508 wrote to memory of 3704	4508	chargeable.exe	83
PID 4508 wrote to memory of 3704	4508	chargeable.exe	83

C:\Users\Admin\AppData\Local\Temp\6cdaf6aa7bca7b33b37345ddd48e8e8c.exe
"C:\Users\Admin\AppData\Local\Temp\6cdaf6aa7bca7b33b37345ddd48e8e8c.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1016
- 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:4000
- - 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:4508
  - - 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:3704

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 114KB
SHA256 412b50744f90d252db38deee8f946be0d4bf1bd70be7129f14fdecf03bae88be
MD5 de8b67c7e69f96dfcbf24779ef75c42f
SHA1 c0bf55e1f5e1ff90aaa267ea5227f7929f6f56f2
SHA512 5d53e1f83c73b7a069c34dc4a16a68f3d30549978a3087bcc0f4a8915425c6831532ea1fbc4f8ab8e09bfa06d01adb5de8dfea7560d059fc70a83d965e0411d9
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDS0:P5eznsjsguGDFqGZ2rD7
MD5 SHA1 SHA512 SSDEEP

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memory/1016-1-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/1016-2-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/1016-18-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/1016-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp

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memory/4000-26-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4000-17-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4508-19-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4508-25-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4508-24-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4508-23-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4508-27-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4508-28-0x0000000074CB0000-0x0000000075261000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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