njrat | 8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd

General

Target

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
Size

147KB
MD5

c006c68b06d9d1979cf5be224a726925
SHA1

817e0b895d7201f8e5cc2a7cddc7f9ed10a394b7
SHA256

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd
SHA512

f3dc7b463332257a98a9d6e78fe442ea68f09f13a09d72388ca27e9197257e4c9b634d8dedcdeff929820598b1421816a94fd98fd639f65f75b7bfeccd0a48c3
SSDEEP

3072:3OAIPiMULBkZ25qcxC9M32GhNvDu0S3lUO9qCDb:3jAiMULBh5qc/2GhNU3lUC

Score

10^/10

njrat claen evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

cLAEN

C2

windows.waely.com:1009

Mutex

926805a248e6ff862074529d07f3cf11

Attributes

reg_key
926805a248e6ff862074529d07f3cf11
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 2 IoCs

Processes:

conhost.execonhost.exe

pid process

4768 conhost.exe
3884 conhost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3996 netsh.exe

pid	process
4768	conhost.exe
3884	conhost.exe

pid	process
3996	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:

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe

Drops startup file 2 IoCs

Processes:

conhost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\926805a248e6ff862074529d07f3cf11.exe	conhost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\926805a248e6ff862074529d07f3cf11.exe	conhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

conhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\926805a248e6ff862074529d07f3cf11 = "\"C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe\" .."	conhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\926805a248e6ff862074529d07f3cf11 = "\"C:\\Users\\Admin\\AppData\\Roaming\\conhost.exe\" .."	conhost.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.execonhost.exe

description	pid	process	target process
PID 2228 set thread context of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 4768 set thread context of 3884	4768	conhost.exe	conhost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

conhost.exe

pid	process
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe
3884	conhost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.execonhost.execonhost.exe

description	pid	process
Token: SeDebugPrivilege	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
Token: SeDebugPrivilege	4768	conhost.exe
Token: SeDebugPrivilege	3884	conhost.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.execonhost.execonhost.exe

description	pid	process	target process
PID 2228 wrote to memory of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 2228 wrote to memory of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 2228 wrote to memory of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 2228 wrote to memory of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 2228 wrote to memory of 3896	2228	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
PID 3896 wrote to memory of 4768	3896	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	conhost.exe
PID 3896 wrote to memory of 4768	3896	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	conhost.exe
PID 3896 wrote to memory of 4768	3896	8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe	conhost.exe
PID 4768 wrote to memory of 3884	4768	conhost.exe	conhost.exe
PID 4768 wrote to memory of 3884	4768	conhost.exe	conhost.exe
PID 4768 wrote to memory of 3884	4768	conhost.exe	conhost.exe
PID 4768 wrote to memory of 3884	4768	conhost.exe	conhost.exe
PID 4768 wrote to memory of 3884	4768	conhost.exe	conhost.exe
PID 3884 wrote to memory of 3996	3884	conhost.exe	netsh.exe
PID 3884 wrote to memory of 3996	3884	conhost.exe	netsh.exe
PID 3884 wrote to memory of 3996	3884	conhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
"C:\Users\Admin\AppData\Local\Temp\8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228

C:\Users\Admin\AppData\Local\Temp\8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
C:\Users\Admin\AppData\Local\Temp\8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3896

C:\Users\Admin\AppData\Roaming\conhost.exe
"C:\Users\Admin\AppData\Roaming\conhost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4768

C:\Users\Admin\AppData\Roaming\conhost.exe
C:\Users\Admin\AppData\Roaming\conhost.exe
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\conhost.exe" "conhost.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:3996

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd.exe.log
Filesize
128B

MD5
a5dcc7c9c08af7dddd82be5b036a4416

SHA1
4f998ca1526d199e355ffb435bae111a2779b994

SHA256
e24033ceec97fd03402b03acaaabd1d1e378e83bb1683afbccac760e00f8ead5

SHA512
56035de734836c0c39f0b48641c51c26adb6e79c6c65e23ca96603f71c95b8673e2ef853146e87efc899dd1878d0bbc2c82d91fbf0fce81c552048e986f9bb5a

Download Submit
C:\Users\Admin\AppData\Roaming\conhost.exe
Filesize
147KB

MD5
c006c68b06d9d1979cf5be224a726925

SHA1
817e0b895d7201f8e5cc2a7cddc7f9ed10a394b7

SHA256
8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd

SHA512
f3dc7b463332257a98a9d6e78fe442ea68f09f13a09d72388ca27e9197257e4c9b634d8dedcdeff929820598b1421816a94fd98fd639f65f75b7bfeccd0a48c3

Download Submit
C:\Users\Admin\AppData\Roaming\conhost.exe
Filesize
147KB

MD5
c006c68b06d9d1979cf5be224a726925

SHA1
817e0b895d7201f8e5cc2a7cddc7f9ed10a394b7

SHA256
8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd

SHA512
f3dc7b463332257a98a9d6e78fe442ea68f09f13a09d72388ca27e9197257e4c9b634d8dedcdeff929820598b1421816a94fd98fd639f65f75b7bfeccd0a48c3

Download Submit
C:\Users\Admin\AppData\Roaming\conhost.exe
Filesize
147KB

MD5
c006c68b06d9d1979cf5be224a726925

SHA1
817e0b895d7201f8e5cc2a7cddc7f9ed10a394b7

SHA256
8b60c50f80470647d821b2eae1b794d6ccd20d21a936f0b1a9bb222d05e302dd

SHA512
f3dc7b463332257a98a9d6e78fe442ea68f09f13a09d72388ca27e9197257e4c9b634d8dedcdeff929820598b1421816a94fd98fd639f65f75b7bfeccd0a48c3

Download Submit
memory/2228-136-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/2228-134-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3884-142-0x0000000000000000-mapping.dmp

Download
memory/3884-148-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3884-149-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3896-132-0x0000000000000000-mapping.dmp

Download
memory/3896-135-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3896-141-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/3896-133-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3996-146-0x0000000000000000-mapping.dmp

Download
memory/4768-137-0x0000000000000000-mapping.dmp

Download
memory/4768-145-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download
memory/4768-147-0x0000000074B70000-0x0000000075121000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads