njrat | cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd

General

Target

cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe
Size

23KB
MD5

ea395bb6be618d0c34cb8a23ae7d9274
SHA1

f03cdd6c3d7ae2a74b0a17b382ed5db518d6ab99
SHA256

cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd
SHA512

9e1e8d1bf8fe867c71742d5a9ff628cbc56e7060fe93b8a21d77c130532b034aec2560fead7260b4d43d99313dca8875d5195e278d9d2349d18170afb962b35b
SSDEEP

384:fc6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZcsJ:EIU0tw3RpcnunQ

Score

10^/10

njrat egi evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Egi

C2

shicogenius1.no-ip.biz:5552

Mutex

99cb4e4f1dee203bc2e54d8f048d3ded

Attributes

reg_key
99cb4e4f1dee203bc2e54d8f048d3ded
splitter
|'|'|

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1800	Firefox-browser.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1548	netsh.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\99cb4e4f1dee203bc2e54d8f048d3ded = "\"C:\\Windows\\Firefox-browser.exe\" .."	Firefox-browser.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\99cb4e4f1dee203bc2e54d8f048d3ded = "\"C:\\Windows\\Firefox-browser.exe\" .."	Firefox-browser.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Firefox-browser.exe	cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 15 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe
Token: 33	1800	Firefox-browser.exe
Token: SeIncBasePriorityPrivilege	1800	Firefox-browser.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 1800	860	cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe	28
PID 860 wrote to memory of 1800	860	cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe	28
PID 860 wrote to memory of 1800	860	cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe	28
PID 860 wrote to memory of 1800	860	cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe	28
PID 1800 wrote to memory of 1548	1800	Firefox-browser.exe	29
PID 1800 wrote to memory of 1548	1800	Firefox-browser.exe	29
PID 1800 wrote to memory of 1548	1800	Firefox-browser.exe	29
PID 1800 wrote to memory of 1548	1800	Firefox-browser.exe	29

C:\Users\Admin\AppData\Local\Temp\cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe
"C:\Users\Admin\AppData\Local\Temp\cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\Firefox-browser.exe
  "C:\Windows\Firefox-browser.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Firefox-browser.exe" "Firefox-browser.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1548

Network

MITRE ATT&CK Enterprise 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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Firefox-browser.exe

Filesize
23KB

MD5
ea395bb6be618d0c34cb8a23ae7d9274

SHA1
f03cdd6c3d7ae2a74b0a17b382ed5db518d6ab99

SHA256
cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd

SHA512
9e1e8d1bf8fe867c71742d5a9ff628cbc56e7060fe93b8a21d77c130532b034aec2560fead7260b4d43d99313dca8875d5195e278d9d2349d18170afb962b35b

Download Submit
C:\Windows\Firefox-browser.exe

Filesize
23KB

MD5
ea395bb6be618d0c34cb8a23ae7d9274

SHA1
f03cdd6c3d7ae2a74b0a17b382ed5db518d6ab99

SHA256
cbb23452a3f6fda9fb7a8615e602fe80ccdc87cacc3b0697c7b6424ceb8562fd

SHA512
9e1e8d1bf8fe867c71742d5a9ff628cbc56e7060fe93b8a21d77c130532b034aec2560fead7260b4d43d99313dca8875d5195e278d9d2349d18170afb962b35b

Download Submit
memory/860-54-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/860-55-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/860-56-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/860-61-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1800-62-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/1800-63-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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