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

268 WindowsUpdate.exe

pid	process
268	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

Loads dropped DLL 1 IoCs

Processes:

a6c258af41ba4806e49fb1acff81567a.exe

pid process

1724 a6c258af41ba4806e49fb1acff81567a.exe

pid	process
1724	a6c258af41ba4806e49fb1acff81567a.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a6c258af41ba4806e49fb1acff81567a.exeWindowsUpdate.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsUpdate.exe"	a6c258af41ba4806e49fb1acff81567a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	WindowsUpdate.exe
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-1-5-21-3846991908-3261386348-1409841751-1000\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

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 33 IoCs

Processes:

WindowsUpdate.exe

description	pid	process
Token: SeDebugPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe
Token: 33	268	WindowsUpdate.exe
Token: SeIncBasePriorityPrivilege	268	WindowsUpdate.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

a6c258af41ba4806e49fb1acff81567a.exeWindowsUpdate.exe

description	pid	process	target process
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 268	1724	a6c258af41ba4806e49fb1acff81567a.exe	WindowsUpdate.exe
PID 1724 wrote to memory of 704	1724	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 1724 wrote to memory of 704	1724	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 1724 wrote to memory of 704	1724	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 1724 wrote to memory of 704	1724	a6c258af41ba4806e49fb1acff81567a.exe	attrib.exe
PID 268 wrote to memory of 452	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 452	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 452	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 452	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 1188	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 1188	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 1188	268	WindowsUpdate.exe	attrib.exe
PID 268 wrote to memory of 1188	268	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

452 attrib.exe
1188 attrib.exe
704 attrib.exe

pid	process
452	attrib.exe
1188	attrib.exe
704	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a6c258af41ba4806e49fb1acff81567a.exe
"C:\Users\Admin\AppData\Local\Temp\a6c258af41ba4806e49fb1acff81567a.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1724
- 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:268
- - 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:452
- - 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:1188
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\WindowsUpdate.exe"
  2⤵
  - Views/modifies file attributes
  PID:704

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
74e0513f71ef18aae509f7751f25f453

SHA1
aba9ff8944c79d81c9f38337722c89a733712b4b

SHA256
a46f531044be1b29ac6346aa39fd048b19e8c799de2484d9978ee79cc96c8e8b

SHA512
a8b47c292d7be35d560787c39978ad54ff7f7bd273a9db550b9795fc8a5666244397fa6e0f2888dcc4811550090acee479d0176e01965bea80598f10e971abd0

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

MD5
ce86a5f1ef5c036da720d8cba98512e7

SHA1
530e6d5ae5b1ec43fa9c337afa18f34c49681558

SHA256
2250c04d4c5b334c97fe69ba67021d1131e73746f96d9939745d7714472cce6d

SHA512
57b300c44f312c6d9e13c56e24ebdb89398458256af18e3a2aa090d84e2d922ad86e2980d5c91015ca7255749d6be3cc042fb41f76a75f383cdffc83528583e9

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

MD5
a6c258af41ba4806e49fb1acff81567a

SHA1
8264f99a54cf67957decd9346bb6e0d3cc91af1e

SHA256
75ab761cc1439789376140b0ce2baf9fd7f6090a4a177cfcffd6fae11ec93071

SHA512
f21ced4af54da0041bea63316277726529f09af941effd34544d45d5a6e8e52e4eb3a515796715f85cbdd1d39be519ee4952812c10b064d577c4fb2fdcf1f31f

Download Submit
memory/268-59-0x0000000000260000-0x00000000002A8000-memory.dmp

Filesize
288KB

Download
memory/268-64-0x00000000059E0000-0x00000000059E1000-memory.dmp

Filesize
4KB

Download
memory/1724-54-0x0000000000B40000-0x0000000000B88000-memory.dmp

Filesize
288KB

Download
memory/1724-55-0x0000000076491000-0x0000000076493000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads