njrat | e7ab67984c2003f38266126541796ff26be38445a24137887f1aee169c816969

General

Target

c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
Size

582KB
MD5

c6a3722aa9098d983ebeb9163d366627
SHA1

eba9fae31dc82786ebf4d75489058ac470b23c55
SHA256

e7ab67984c2003f38266126541796ff26be38445a24137887f1aee169c816969
SHA512

9eabcd2838570d4502977cc12e85d92f24c08ee5916965bc940d3416ec17df3bb2c40914baee65a5984065bce1b4c79e771f0bf513525b912be0d01ddf253638
SSDEEP

6144:+/iQb+ckQsH8TDRGKJkSvGUlYG2Ks49gDmt3bN0uh+q8Q6ZJt8MCzJFQepf2klj:9Qnk3GDYKGcblfd9gDmtrN0pq8Qa7Q5

Score

10^/10

njrat eroxsik1241 discovery trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

eroxsik1241

C2

eroxsik.ddns.net:5552

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

Executes dropped EXE 2 IoCs

pid	Process
2696	eliteab.exe
2360	svchost.exe

Loads dropped DLL 4 IoCs

pid	Process
2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
2696	eliteab.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\__tmp_rar_sfx_access_check_259412564	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
File created	C:\Program Files (x86)\11905323_2.jpg	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\11905323_2.jpg	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
File created	C:\Program Files (x86)\eliteab.exe	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\eliteab.exe	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\11905323_2.jpg	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 4 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eliteab.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2696	eliteab.exe
2360	svchost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe
Token: 33	2360	svchost.exe
Token: SeIncBasePriorityPrivilege	2360	svchost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2940	DllHost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2696	2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe	31
PID 2180 wrote to memory of 2696	2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe	31
PID 2180 wrote to memory of 2696	2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe	31
PID 2180 wrote to memory of 2696	2180	c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe	31
PID 2696 wrote to memory of 2360	2696	eliteab.exe	32
PID 2696 wrote to memory of 2360	2696	eliteab.exe	32
PID 2696 wrote to memory of 2360	2696	eliteab.exe	32
PID 2696 wrote to memory of 2360	2696	eliteab.exe	32

C:\Users\Admin\AppData\Local\Temp\c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c6a3722aa9098d983ebeb9163d366627_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Program Files (x86)\eliteab.exe
  "C:\Program Files (x86)\eliteab.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2360

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
PID:2940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\11905323_2.jpg

Filesize
35KB

MD5
8a5699745f3b1033dc71e373f55dd549

SHA1
3a289f9c65eed617308333659fd47211526db9f5

SHA256
eee69a0be51244091687d8ca8e8ce8c59f0412e9c8bb2ef196cc4f2cf15c30a7

SHA512
8348ea0cc2af3c8fc4e2b596e6e4ab60b36a2437b0d7f590c803be4a98db335a3d0169d2ffc499f65c4eb9deb1f938a776d11eefdb335724fc799869606163c2

Download Submit
C:\Program Files (x86)\eliteab.exe

Filesize
43KB

MD5
3bc3c6331cd4f8b946ebd49d3bd0c4cf

SHA1
378b986f8259a0474723678d88537bcde7f0e037

SHA256
37f949c2f41ed1fdf693d17d9b15b0e8fbf51a9ac32156be4dd4141e5269a72e

SHA512
6c4de084f4031adb9bd3783667866eecda52d70409c0ae3e17cce1d6c62a8d02f0461defe684142289aae76d749a6ac1bfec0caa846e20d27371c6b0734b5f97

Download Submit
memory/2180-4-0x0000000000D90000-0x0000000000D92000-memory.dmp

Filesize
8KB

Download
memory/2360-28-0x0000000001310000-0x0000000001322000-memory.dmp

Filesize
72KB

Download
memory/2696-19-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/2940-6-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2940-5-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/2940-29-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download

Analysis

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