njrat | b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14

General

Target

b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe
Size

29KB
MD5

6733a25b5cc4577c5101c2fa583e9f30
SHA1

8806867144e267542cc63d2304cd97e0cb76ae9b
SHA256

b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14
SHA512

cca0213f61532f0ae220bdac85a5d852270c12ceacaaa67d255878e2e20d4cb8221165bb89da282e324dc2285f454903150b60a1f3c6acaedc0a85dc1a4f401f
SSDEEP

384:OhQXpl7dzns8oDw/LRP55/4GWmqDSeXegLGBsbh0w4wlAokw9OhgOL1vYRGOZzXB:OE7Js8oDSJz4wqZXenBKh0p29SgRh/

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

hacked

C2

captinsp.no-ip.biz:1177

Mutex

babe8364d0b44de2ea6e4bcccd70281e

Attributes

reg_key
babe8364d0b44de2ea6e4bcccd70281e
splitter
|'|'|

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1052	server.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
992	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\babe8364d0b44de2ea6e4bcccd70281e.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\babe8364d0b44de2ea6e4bcccd70281e.exe	server.exe

Loads dropped DLL 1 IoCs

pid	Process
1640	b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\babe8364d0b44de2ea6e4bcccd70281e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\babe8364d0b44de2ea6e4bcccd70281e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe
1052	server.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1052	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 1052	1640	b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe	27
PID 1640 wrote to memory of 1052	1640	b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe	27
PID 1640 wrote to memory of 1052	1640	b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe	27
PID 1640 wrote to memory of 1052	1640	b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe	27
PID 1052 wrote to memory of 992	1052	server.exe	28
PID 1052 wrote to memory of 992	1052	server.exe	28
PID 1052 wrote to memory of 992	1052	server.exe	28
PID 1052 wrote to memory of 992	1052	server.exe	28

C:\Users\Admin\AppData\Local\Temp\b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe
"C:\Users\Admin\AppData\Local\Temp\b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1052
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:992

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:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
29KB

MD5
6733a25b5cc4577c5101c2fa583e9f30

SHA1
8806867144e267542cc63d2304cd97e0cb76ae9b

SHA256
b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14

SHA512
cca0213f61532f0ae220bdac85a5d852270c12ceacaaa67d255878e2e20d4cb8221165bb89da282e324dc2285f454903150b60a1f3c6acaedc0a85dc1a4f401f

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
29KB

MD5
6733a25b5cc4577c5101c2fa583e9f30

SHA1
8806867144e267542cc63d2304cd97e0cb76ae9b

SHA256
b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14

SHA512
cca0213f61532f0ae220bdac85a5d852270c12ceacaaa67d255878e2e20d4cb8221165bb89da282e324dc2285f454903150b60a1f3c6acaedc0a85dc1a4f401f

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
29KB

MD5
6733a25b5cc4577c5101c2fa583e9f30

SHA1
8806867144e267542cc63d2304cd97e0cb76ae9b

SHA256
b6e5d2153b3a9c78b8e0e03e23357a96531d8514919bd64330a90fb6a59a3a14

SHA512
cca0213f61532f0ae220bdac85a5d852270c12ceacaaa67d255878e2e20d4cb8221165bb89da282e324dc2285f454903150b60a1f3c6acaedc0a85dc1a4f401f

Download Submit
memory/1052-62-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/1052-64-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download
memory/1640-54-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

Download
memory/1640-60-0x0000000073F70000-0x000000007451B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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