njrat | 21a3e6f76e41c01ebc3193eef929486e2302fb05382251cf94c942291dad4ab9

General

Target

d1fb6ce7c73ac96ff29f78bc528e156b.exe
Size

43KB
MD5

d1fb6ce7c73ac96ff29f78bc528e156b
SHA1

b330247292007e08115001a357b8e9d8ae23366b
SHA256

21a3e6f76e41c01ebc3193eef929486e2302fb05382251cf94c942291dad4ab9
SHA512

3209c3ce29fc6771b628e819abb645015c79c385b0b11d810028330c044556173cb8914bf1eedb278226bd745ddc7545bad8892f2f2dca0befb3d92dc1a97d4d
SSDEEP

384:LZyexy1STss7yKSVB8YYkEhrpS2dzsIij+ZsNO3PlpJKkkjh/TzF7pWnWygreT0k:ltQk4smKSn8hlrkYuXQ/ofm+L

Score

10^/10

njrat rusjc discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

rusjc

C2

185.79.132.175:8000

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	d1fb6ce7c73ac96ff29f78bc528e156b.exe

Executes dropped EXE 1 IoCs

pid	Process
5004	dllhost.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-1-5-21-2211717155-842865201-3404093980-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1fb6ce7c73ac96ff29f78bc528e156b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dllhost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4512	d1fb6ce7c73ac96ff29f78bc528e156b.exe
5004	dllhost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe
Token: 33	5004	dllhost.exe
Token: SeIncBasePriorityPrivilege	5004	dllhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 5004	4512	d1fb6ce7c73ac96ff29f78bc528e156b.exe	94
PID 4512 wrote to memory of 5004	4512	d1fb6ce7c73ac96ff29f78bc528e156b.exe	94
PID 4512 wrote to memory of 5004	4512	d1fb6ce7c73ac96ff29f78bc528e156b.exe	94

C:\Users\Admin\AppData\Local\Temp\d1fb6ce7c73ac96ff29f78bc528e156b.exe
"C:\Users\Admin\AppData\Local\Temp\d1fb6ce7c73ac96ff29f78bc528e156b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:5004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
43KB

MD5
d1fb6ce7c73ac96ff29f78bc528e156b

SHA1
b330247292007e08115001a357b8e9d8ae23366b

SHA256
21a3e6f76e41c01ebc3193eef929486e2302fb05382251cf94c942291dad4ab9

SHA512
3209c3ce29fc6771b628e819abb645015c79c385b0b11d810028330c044556173cb8914bf1eedb278226bd745ddc7545bad8892f2f2dca0befb3d92dc1a97d4d

Download Submit
memory/4512-3-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/4512-16-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download
memory/4512-0-0x000000007510E000-0x000000007510F000-memory.dmp

Filesize
4KB

Download
memory/4512-4-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download
memory/4512-5-0x0000000005A60000-0x0000000005AF2000-memory.dmp

Filesize
584KB

Download
memory/4512-1-0x0000000000C80000-0x0000000000C92000-memory.dmp

Filesize
72KB

Download
memory/4512-2-0x00000000056B0000-0x000000000574C000-memory.dmp

Filesize
624KB

Download
memory/5004-15-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-17-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-18-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/5004-19-0x00000000059A0000-0x0000000005A06000-memory.dmp

Filesize
408KB

Download
memory/5004-20-0x00000000069E0000-0x00000000069F8000-memory.dmp

Filesize
96KB

Download
memory/5004-21-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-22-0x0000000075100000-0x00000000758B0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads