njrat | 038dd8b7ccee6add96f34b54f715dc14dfc1718c47bf65370e2e3be883924721

General

Target

ae73bdc4a2a838cfd473516f71256775.exe
Size

23KB
MD5

ae73bdc4a2a838cfd473516f71256775
SHA1

131baeeb082a9686e439037d68b25511704afdca
SHA256

038dd8b7ccee6add96f34b54f715dc14dfc1718c47bf65370e2e3be883924721
SHA512

cffacc16e3ec4b58d9929195a478f3154aa0b468141f891360c8b226a15d50264321ef42c1ba8deceb0a5448fc60ae25aae18194e88e9f14a3ffe2813b0db445

Score

10^/10

njrat victim evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

victim

C2

maxmax321.ddns.net:1177

Mutex

8b94dab96779834ab91c92bf9ca487ba

Attributes

reg_key
8b94dab96779834ab91c92bf9ca487ba
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

584 explorer.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
584	explorer.exe

Drops startup file 2 IoCs

Processes:

explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b94dab96779834ab91c92bf9ca487ba.exe	explorer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8b94dab96779834ab91c92bf9ca487ba.exe	explorer.exe

Loads dropped DLL 1 IoCs

Processes:

ae73bdc4a2a838cfd473516f71256775.exe

pid process

1088 ae73bdc4a2a838cfd473516f71256775.exe

pid	process
1088	ae73bdc4a2a838cfd473516f71256775.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\8b94dab96779834ab91c92bf9ca487ba = "\"C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe\" .."	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8b94dab96779834ab91c92bf9ca487ba = "\"C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe\" .."	explorer.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:

explorer.exe

description	pid	process
Token: SeDebugPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe
Token: 33	584	explorer.exe
Token: SeIncBasePriorityPrivilege	584	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ae73bdc4a2a838cfd473516f71256775.exeexplorer.exe

description	pid	process	target process
PID 1088 wrote to memory of 584	1088	ae73bdc4a2a838cfd473516f71256775.exe	explorer.exe
PID 1088 wrote to memory of 584	1088	ae73bdc4a2a838cfd473516f71256775.exe	explorer.exe
PID 1088 wrote to memory of 584	1088	ae73bdc4a2a838cfd473516f71256775.exe	explorer.exe
PID 1088 wrote to memory of 584	1088	ae73bdc4a2a838cfd473516f71256775.exe	explorer.exe
PID 584 wrote to memory of 1272	584	explorer.exe	netsh.exe
PID 584 wrote to memory of 1272	584	explorer.exe	netsh.exe
PID 584 wrote to memory of 1272	584	explorer.exe	netsh.exe
PID 584 wrote to memory of 1272	584	explorer.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\ae73bdc4a2a838cfd473516f71256775.exe
"C:\Users\Admin\AppData\Local\Temp\ae73bdc4a2a838cfd473516f71256775.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1088

C:\Users\Admin\AppData\Roaming\explorer.exe
"C:\Users\Admin\AppData\Roaming\explorer.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE
3⤵
PID:1272

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\explorer.exe

MD5
ae73bdc4a2a838cfd473516f71256775

SHA1
131baeeb082a9686e439037d68b25511704afdca

SHA256
038dd8b7ccee6add96f34b54f715dc14dfc1718c47bf65370e2e3be883924721

SHA512
cffacc16e3ec4b58d9929195a478f3154aa0b468141f891360c8b226a15d50264321ef42c1ba8deceb0a5448fc60ae25aae18194e88e9f14a3ffe2813b0db445

Download Submit
C:\Users\Admin\AppData\Roaming\explorer.exe

MD5
ae73bdc4a2a838cfd473516f71256775

SHA1
131baeeb082a9686e439037d68b25511704afdca

SHA256
038dd8b7ccee6add96f34b54f715dc14dfc1718c47bf65370e2e3be883924721

SHA512
cffacc16e3ec4b58d9929195a478f3154aa0b468141f891360c8b226a15d50264321ef42c1ba8deceb0a5448fc60ae25aae18194e88e9f14a3ffe2813b0db445

Download Submit
\Users\Admin\AppData\Roaming\explorer.exe

MD5
ae73bdc4a2a838cfd473516f71256775

SHA1
131baeeb082a9686e439037d68b25511704afdca

SHA256
038dd8b7ccee6add96f34b54f715dc14dfc1718c47bf65370e2e3be883924721

SHA512
cffacc16e3ec4b58d9929195a478f3154aa0b468141f891360c8b226a15d50264321ef42c1ba8deceb0a5448fc60ae25aae18194e88e9f14a3ffe2813b0db445

Download Submit
memory/584-56-0x0000000000000000-mapping.dmp

Download
memory/584-60-0x0000000000630000-0x0000000000631000-memory.dmp

Filesize
4KB

Download
memory/584-63-0x0000000000631000-0x0000000000632000-memory.dmp

Filesize
4KB

Download
memory/1088-53-0x0000000076C61000-0x0000000076C63000-memory.dmp

Filesize
8KB

Download
memory/1088-54-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/1272-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads