njrat | a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f

General

Target

a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe
Size

201KB
MD5

4486cc9afaf3f56305be44af02461af0
SHA1

0542ac159f8c20eba9569029370fdead2aad685c
SHA256

a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f
SHA512

d90d06371521df0383babd6d48bc66d7000cf9b26301ed5ce9e046bd9a835307988caddf7e6f5ef9f763f570a72a086177dd07c3ecc29f7efe986d5f80ff978b
SSDEEP

3072:maxc0mb5WGqSRaCXipPFOJ/87V5Ll/j2AerJYJW:AbsGqSRaWqPFO587V5Ll/yxJ

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

anonym0z.ddns.net:4343

Mutex

17d58b9ed643440f8e6ebd8a10b2f3f7

Attributes

reg_key
17d58b9ed643440f8e6ebd8a10b2f3f7
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

Google Chrome.exe

pid process

4084 Google Chrome.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4412 netsh.exe

pid	process
4084	Google Chrome.exe

pid	process
4412	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

Processes:

a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Google Chrome.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\17d58b9ed643440f8e6ebd8a10b2f3f7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Google Chrome.exe\" .."	Google Chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\17d58b9ed643440f8e6ebd8a10b2f3f7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Google Chrome.exe\" .."	Google 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 27 IoCs

Processes:

Google Chrome.exe

description	pid	process
Token: SeDebugPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe
Token: 33	4084	Google Chrome.exe
Token: SeIncBasePriorityPrivilege	4084	Google Chrome.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exeGoogle Chrome.exe

description	pid	process	target process
PID 1600 wrote to memory of 4084	1600	a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe	Google Chrome.exe
PID 1600 wrote to memory of 4084	1600	a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe	Google Chrome.exe
PID 1600 wrote to memory of 4084	1600	a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe	Google Chrome.exe
PID 4084 wrote to memory of 4412	4084	Google Chrome.exe	netsh.exe
PID 4084 wrote to memory of 4412	4084	Google Chrome.exe	netsh.exe
PID 4084 wrote to memory of 4412	4084	Google Chrome.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe
"C:\Users\Admin\AppData\Local\Temp\a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4084
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe" "Google Chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4412

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\Google Chrome.exe

Filesize
201KB

MD5
4486cc9afaf3f56305be44af02461af0

SHA1
0542ac159f8c20eba9569029370fdead2aad685c

SHA256
a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f

SHA512
d90d06371521df0383babd6d48bc66d7000cf9b26301ed5ce9e046bd9a835307988caddf7e6f5ef9f763f570a72a086177dd07c3ecc29f7efe986d5f80ff978b

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

Filesize
201KB

MD5
4486cc9afaf3f56305be44af02461af0

SHA1
0542ac159f8c20eba9569029370fdead2aad685c

SHA256
a5c8c30adea3c6efedd695ec00d47f8e774b64118daf02d65c302dd2e345202f

SHA512
d90d06371521df0383babd6d48bc66d7000cf9b26301ed5ce9e046bd9a835307988caddf7e6f5ef9f763f570a72a086177dd07c3ecc29f7efe986d5f80ff978b

Download Submit
memory/1600-132-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/1600-133-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/1600-137-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4084-134-0x0000000000000000-mapping.dmp

Download
memory/4084-138-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4084-140-0x0000000075270000-0x0000000075821000-memory.dmp

Filesize
5.7MB

Download
memory/4412-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads