njrat | 4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61

General

Target

4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe
Size

23KB
MD5

100ffa7dcf8ff1e0af2ae060e36d2330
SHA1

3f7bb7d2d48e05a686ba2f9b1e9deb42cdc612df
SHA256

4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61
SHA512

7def31c3e61fa9957a85737696dd8ae898c335c448ba173fadd3b9a2570a935c0ad8fdb629a857bb24a62103fcc883deebc7266e563a70d96cbb58e387f0066e
SSDEEP

384:MsqCm6yocx/Yp7jemiO0nd08/VQ6bgNQC5h7tmRvR6JZlbw8hqIusZzZID:TSoQA6mlcrRpcnul

Score

10^/10

njrat alex-hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Alex-Hacked

C2

titoaalex.no-ip.biz:1177

Mutex

0484677ee8d3332960ed75d745eeef37

Attributes

reg_key
0484677ee8d3332960ed75d745eeef37
splitter
|'|'|

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1344	ChRome.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
3264	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0484677ee8d3332960ed75d745eeef37 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ChRome.exe\" .."	ChRome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\0484677ee8d3332960ed75d745eeef37 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ChRome.exe\" .."	ChRome.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 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe
Token: 33	1344	ChRome.exe
Token: SeIncBasePriorityPrivilege	1344	ChRome.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1344	3564	4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe	80
PID 3564 wrote to memory of 1344	3564	4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe	80
PID 3564 wrote to memory of 1344	3564	4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe	80
PID 1344 wrote to memory of 3264	1344	ChRome.exe	81
PID 1344 wrote to memory of 3264	1344	ChRome.exe	81
PID 1344 wrote to memory of 3264	1344	ChRome.exe	81

C:\Users\Admin\AppData\Local\Temp\4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe
"C:\Users\Admin\AppData\Local\Temp\4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3564
- C:\Users\Admin\AppData\Local\Temp\ChRome.exe
  "C:\Users\Admin\AppData\Local\Temp\ChRome.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\ChRome.exe" "ChRome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3264

Network

MITRE ATT&CK Enterprise v6

Initial Access

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
23KB

MD5
100ffa7dcf8ff1e0af2ae060e36d2330

SHA1
3f7bb7d2d48e05a686ba2f9b1e9deb42cdc612df

SHA256
4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61

SHA512
7def31c3e61fa9957a85737696dd8ae898c335c448ba173fadd3b9a2570a935c0ad8fdb629a857bb24a62103fcc883deebc7266e563a70d96cbb58e387f0066e

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

Filesize
23KB

MD5
100ffa7dcf8ff1e0af2ae060e36d2330

SHA1
3f7bb7d2d48e05a686ba2f9b1e9deb42cdc612df

SHA256
4d4fd60cef5406e72dbdbde6ca6f0f1ccd20d505f6ec59a1a91270969c288c61

SHA512
7def31c3e61fa9957a85737696dd8ae898c335c448ba173fadd3b9a2570a935c0ad8fdb629a857bb24a62103fcc883deebc7266e563a70d96cbb58e387f0066e

Download Submit
memory/1344-137-0x0000000074CB0000-0x0000000075261000-memory.dmp

Filesize
5.7MB

Download
memory/1344-139-0x0000000074CB0000-0x0000000075261000-memory.dmp

Filesize
5.7MB

Download
memory/3564-132-0x0000000074CB0000-0x0000000075261000-memory.dmp

Filesize
5.7MB

Download
memory/3564-136-0x0000000074CB0000-0x0000000075261000-memory.dmp

Filesize
5.7MB

Download

Analysis

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