njrat | 75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071

General

Target

a6c258af41ba4806e49fb1acff81567a.exe
Size

259KB
MD5

a6c258af41ba4806e49fb1acff81567a
SHA1

8264f99a54cf67957decd9346bb6e0d3cc91af1e
SHA256

75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071
SHA512

f21ced4af54da0041bea63316277726529f09af941effd34544d45d5a6e8e52e4eb3a515796715f85cbdd1d39be519ee4952812c10b064d577c4fb2fdcf1f31f

Score

10^/10

njrat uziclicker persistence suricata trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

UziClicker

C2

perpetual-pollution.auto.playit.gg:54523

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
Executes dropped EXE 1 IoCs

Processes:

WindowsUpdate.exe

pid process

1088 WindowsUpdate.exe

pid	process
1088	WindowsUpdate.exe

Drops startup file 5 IoCs

Processes:

a6c258af41ba4806e49fb1acff81567a.exeWindowsUpdate.exeattrib.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	a6c258af41ba4806e49fb1acff81567a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	WindowsUpdate.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe	WindowsUpdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe	WindowsUpdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe	attrib.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

WindowsUpdate.exea6c258af41ba4806e49fb1acff81567a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	WindowsUpdate.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	WindowsUpdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	WindowsUpdate.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsUpdate.exe"	a6c258af41ba4806e49fb1acff81567a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	WindowsUpdate.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 27 IoCs

Processes:

WindowsUpdate.exe

description	pid	process
Token: SeDebugPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe
Token: 33	1088	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	1088	WindowsUpdate.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a6c258af41ba4806e49fb1acff81567a.exeWindowsUpdate.exe

description	pid	process	target process
PID 3876 wrote to memory of 1088	3876	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 3876 wrote to memory of 1088	3876	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 3876 wrote to memory of 1088	3876	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 3876 wrote to memory of 3960	3876	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 3876 wrote to memory of 3960	3876	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 3876 wrote to memory of 3960	3876	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 1088 wrote to memory of 2416	1088	WindowsUpdate.exe	attrib.exe
PID 1088 wrote to memory of 2416	1088	WindowsUpdate.exe	attrib.exe
PID 1088 wrote to memory of 2416	1088	WindowsUpdate.exe	attrib.exe
PID 1088 wrote to memory of 1136	1088	WindowsUpdate.exe	attrib.exe
PID 1088 wrote to memory of 1136	1088	WindowsUpdate.exe	attrib.exe
PID 1088 wrote to memory of 1136	1088	WindowsUpdate.exe	attrib.exe

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exeattrib.exe

pid process

2416 attrib.exe
3960 attrib.exe
1136 attrib.exe

pid	process
2416	attrib.exe
3960	attrib.exe
1136	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a6c258af41ba4806e49fb1acff81567a.exe
"C:\Users\Admin\AppData\Local\Temp\a6c258af41ba4806e49fb1acff81567a.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3876
- C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1088
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
    3⤵
    - Views/modifies file attributes
    PID:1136
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
    3⤵
    - Drops startup file
    - Views/modifies file attributes
    PID:2416
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe"
  2⤵
  - Views/modifies file attributes
  PID:3960

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe

MD5
a6c258af41ba4806e49fb1acff81567a

SHA1
8264f99a54cf67957decd9346bb6e0d3cc91af1e

SHA256
75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071

SHA512
f21ced4af54da0041bea63316277726529f09af941effd34544d45d5a6e8e52e4eb3a515796715f85cbdd1d39be519ee4952812c10b064d577c4fb2fdcf1f31f

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

MD5
a6c258af41ba4806e49fb1acff81567a

SHA1
8264f99a54cf67957decd9346bb6e0d3cc91af1e

SHA256
75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071

SHA512
f21ced4af54da0041bea63316277726529f09af941effd34544d45d5a6e8e52e4eb3a515796715f85cbdd1d39be519ee4952812c10b064d577c4fb2fdcf1f31f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe

MD5
a6c258af41ba4806e49fb1acff81567a

SHA1
8264f99a54cf67957decd9346bb6e0d3cc91af1e

SHA256
75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071

SHA512
f21ced4af54da0041bea63316277726529f09af941effd34544d45d5a6e8e52e4eb3a515796715f85cbdd1d39be519ee4952812c10b064d577c4fb2fdcf1f31f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

MD5
a57e7a83efd42e1db0b3da3066caca8d

SHA1
e836d909497ed731a2c262eb98ae88a2870ebbef

SHA256
e3c2774fef5875e7799060d23c600d5427e0d68f1732f31518d194ef05183cf0

SHA512
71cdda2c6b43480e987247e15812f8f259c065450e1665870f8922c33fef9ec19f9e71550ebf1147b8dfc05099b545ef4d06fe7ce9255efaea07eaed35da6ac7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

MD5
e90d0ea551063a0633015457b19482da

SHA1
3d010567d3947182318ae9792694487d8915bcca

SHA256
f95007e1e191ec6c973cbe5fa3302043f41e35ed55ad8e5db6906ef35c49182b

SHA512
a90c15cca8db565fc1d1d5ec2d2e4283d6771385649e9e4cc3af40fd8a1efd076def2a180f5dc31da9ba31e638e2b91bb47db6833eaecc86e2620ddd775f834e

Download Submit
memory/1088-123-0x0000000006170000-0x0000000006171000-memory.dmp

Filesize
4KB

Download
memory/1088-124-0x0000000006180000-0x0000000006212000-memory.dmp

Filesize
584KB

Download
memory/1088-125-0x0000000006140000-0x000000000614A000-memory.dmp

Filesize
40KB

Download
memory/1088-126-0x0000000006370000-0x00000000063D6000-memory.dmp

Filesize
408KB

Download
memory/3876-115-0x0000000000AF0000-0x0000000000B38000-memory.dmp

Filesize
288KB

Download
memory/3876-116-0x00000000054A0000-0x000000000553C000-memory.dmp

Filesize
624KB

Download
memory/3876-117-0x00000000061B0000-0x00000000066AE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads