njrat | 5935abe30474de74cf231f27a73fa92f41e4a1411f357775ac9fd7e66cfd40c9

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 02:43

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General

Target
06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe
Size 25KB
Sample240429-c7myrafh39
SHA256 5935abe30474de74cf231f27a73fa92f41e4a1411f357775ac9fd7e66cfd40c9
MD5 06a510663c826a45f8bc2dcb48aaa4d9
SHA1 24167c64771159c126e5af64fea613bd7ab0991f
SHA512 b12fa35cb46dcc7deeb969108457fc6f3045cd5c5e563847e32da999aabbd66e9d8e61f116ad83332c6ee6ebc602ac0b55d5c26311a4145a04222c6bcc3b63ff
SSDEEP 768:svpsJMpAcEOI/Xs6bZpOswvj1CAKZlaJAx:QOiZI/5/vwZMT
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat user persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

user

hhacer.ddns.net: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\Java update.exe	Opera.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Opera.exe

Executes dropped EXE 3 IoCs

pid	Process
2480	Opera.exe
856	Server.exe
348	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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\ProgramData\\Opera.exe\" .."	Opera.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\ProgramData\\Opera.exe\" .."	Opera.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2396	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2084	06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe
2480	Opera.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe
Token: 33	2480	Opera.exe
Token: SeIncBasePriorityPrivilege	2480	Opera.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2480	2084	06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe	28
PID 2084 wrote to memory of 2480	2084	06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe	28
PID 2084 wrote to memory of 2480	2084	06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe	28
PID 2480 wrote to memory of 2396	2480	Opera.exe	29
PID 2480 wrote to memory of 2396	2480	Opera.exe	29
PID 2480 wrote to memory of 2396	2480	Opera.exe	29
PID 2276 wrote to memory of 856	2276	taskeng.exe	34
PID 2276 wrote to memory of 856	2276	taskeng.exe	34
PID 2276 wrote to memory of 856	2276	taskeng.exe	34
PID 2276 wrote to memory of 348	2276	taskeng.exe	35
PID 2276 wrote to memory of 348	2276	taskeng.exe	35
PID 2276 wrote to memory of 348	2276	taskeng.exe	35

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\06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\06a510663c826a45f8bc2dcb48aaa4d9_JaffaCakes118.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2084
- C:\ProgramData\Opera.exe
  "C:\ProgramData\Opera.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:2480
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - Creates scheduled task(s)
    PID:2396

C:\Windows\system32\taskeng.exe
taskeng.exe {3F50D15E-7554-4B4A-BDE2-654C46C15E5B} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:856
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Opera.exe

Path C:\ProgramData\Opera.exe
Size 25KB
SHA256 5935abe30474de74cf231f27a73fa92f41e4a1411f357775ac9fd7e66cfd40c9
MD5 06a510663c826a45f8bc2dcb48aaa4d9
SHA1 24167c64771159c126e5af64fea613bd7ab0991f
SHA512 b12fa35cb46dcc7deeb969108457fc6f3045cd5c5e563847e32da999aabbd66e9d8e61f116ad83332c6ee6ebc602ac0b55d5c26311a4145a04222c6bcc3b63ff
SSDEEP 768:svpsJMpAcEOI/Xs6bZpOswvj1CAKZlaJAx:QOiZI/5/vwZMT
MD5 SHA1 SHA512 SSDEEP

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memory/348-22-0x00000000008A0000-0x00000000008A8000-memory.dmp

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memory/856-20-0x0000000000120000-0x0000000000128000-memory.dmp

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memory/2084-12-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

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memory/2084-1-0x0000000000240000-0x0000000000252000-memory.dmp

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memory/2084-2-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

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memory/2084-3-0x000000001B230000-0x000000001B2B0000-memory.dmp

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memory/2084-0-0x0000000000830000-0x0000000000838000-memory.dmp

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memory/2480-11-0x000000001B100000-0x000000001B180000-memory.dmp

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memory/2480-15-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

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memory/2480-16-0x000000001B100000-0x000000001B180000-memory.dmp

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memory/2480-10-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

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memory/2480-9-0x0000000000CD0000-0x0000000000CD8000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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