njrat | 94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6

General

Target

94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe
Size

25KB
MD5

2dff234d815257b3cec6c671f59adbd8
SHA1

9e61b93827619f545e56e0dce967166105d9659d
SHA256

94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6
SHA512

5ea83782bcc35aa3e9abd355017a88deded529d8f95fcc854f9bc7f3be12d72cb318e77172c9af87358432ec5f1f93e32d52b759b42ad88257569700d28ee154
SSDEEP

768:5vkJ2tI9rN28sZIyLLoT6t5Qa+tAgzyyKb:yEtkB2SIv6aTz

Score

10^/10

njrat zula persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

zula

C2

darkerzm.duckdns.org:1604

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender.exe	dllhost.exe

Executes dropped EXE 3 IoCs

pid	Process
2676	dllhost.exe
2100	Server.exe
2028	Server.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2940	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
824	94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe
2676	dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe
Token: 33	2676	dllhost.exe
Token: SeIncBasePriorityPrivilege	2676	dllhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 2676	824	94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe	31
PID 824 wrote to memory of 2676	824	94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe	31
PID 824 wrote to memory of 2676	824	94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe	31
PID 2676 wrote to memory of 2940	2676	dllhost.exe	32
PID 2676 wrote to memory of 2940	2676	dllhost.exe	32
PID 2676 wrote to memory of 2940	2676	dllhost.exe	32
PID 3064 wrote to memory of 2100	3064	taskeng.exe	35
PID 3064 wrote to memory of 2100	3064	taskeng.exe	35
PID 3064 wrote to memory of 2100	3064	taskeng.exe	35
PID 3064 wrote to memory of 2028	3064	taskeng.exe	36
PID 3064 wrote to memory of 2028	3064	taskeng.exe	36
PID 3064 wrote to memory of 2028	3064	taskeng.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe
"C:\Users\Admin\AppData\Local\Temp\94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  "C:\Users\Admin\AppData\Roaming\dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2940

C:\Windows\system32\taskeng.exe
taskeng.exe {2612F171-E762-4831-97E7-35983C287F49} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2100
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\dllhost.exe

Filesize
25KB

MD5
2dff234d815257b3cec6c671f59adbd8

SHA1
9e61b93827619f545e56e0dce967166105d9659d

SHA256
94e8fa6dac6e1a9e76dabf84a2478626eb9cba660c3a9dbe525caa7271fcdef6

SHA512
5ea83782bcc35aa3e9abd355017a88deded529d8f95fcc854f9bc7f3be12d72cb318e77172c9af87358432ec5f1f93e32d52b759b42ad88257569700d28ee154

Download Submit
memory/824-0-0x000007FEF68EE000-0x000007FEF68EF000-memory.dmp

Filesize
4KB

Download
memory/824-1-0x0000000000510000-0x0000000000522000-memory.dmp

Filesize
72KB

Download
memory/824-2-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/824-3-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/824-12-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-9-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-10-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-11-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-15-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-16-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download
memory/2676-17-0x000007FEF6630000-0x000007FEF6FCD000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads