njrat | 72e6c01daffadb74c9ba7253615ff48d8877f65d6ec79feee82d089634655a5e

General

Target
286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe
Size 23KB
Sample240509-fs92hsfb95
SHA256 72e6c01daffadb74c9ba7253615ff48d8877f65d6ec79feee82d089634655a5e
MD5 286d91e1d25780b99e04edc0d880e229
SHA1 8ff7f38b92e5f973d3cc9d436a5beb64982e390b
SHA512 93815099e21f6b325670ff8a0ec40f18ae00edd6f610b394fab3a6c436c88db96a2dec91672555e121d893d4cb0dc0431a3cfa31cfcb0aca467780d9dbd38219
SSDEEP 384:+Gwz6+T4IjWZFNwXU0eiNUBdvt6lgT+lLOhXxQmRvR6JZlbw8hqIusZzZ+V:qTbC81NgRpcnut
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3132	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3096	Audio64.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5e7917ea1a0a3cedd651a89caa506dd1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Audio64.exe\" .."	Audio64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5e7917ea1a0a3cedd651a89caa506dd1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Audio64.exe\" .."	Audio64.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe
Token: 33	3096	Audio64.exe
Token: SeIncBasePriorityPrivilege	3096	Audio64.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 3096	2288	286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe	83
PID 2288 wrote to memory of 3096	2288	286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe	83
PID 2288 wrote to memory of 3096	2288	286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe	83
PID 3096 wrote to memory of 3132	3096	Audio64.exe	84
PID 3096 wrote to memory of 3132	3096	Audio64.exe	84
PID 3096 wrote to memory of 3132	3096	Audio64.exe	84

C:\Users\Admin\AppData\Local\Temp\286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\286d91e1d25780b99e04edc0d880e229_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\Audio64.exe
  "C:\Users\Admin\AppData\Local\Temp\Audio64.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3096
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Audio64.exe" "Audio64.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Audio64.exe

Path C:\Users\Admin\AppData\Local\Temp\Audio64.exe
Size 23KB
SHA256 72e6c01daffadb74c9ba7253615ff48d8877f65d6ec79feee82d089634655a5e
MD5 286d91e1d25780b99e04edc0d880e229
SHA1 8ff7f38b92e5f973d3cc9d436a5beb64982e390b
SHA512 93815099e21f6b325670ff8a0ec40f18ae00edd6f610b394fab3a6c436c88db96a2dec91672555e121d893d4cb0dc0431a3cfa31cfcb0aca467780d9dbd38219
SSDEEP 384:+Gwz6+T4IjWZFNwXU0eiNUBdvt6lgT+lLOhXxQmRvR6JZlbw8hqIusZzZ+V:qTbC81NgRpcnut
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2288-0-0x00000000750F2000-0x00000000750F3000-memory.dmp

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memory/2288-1-0x00000000750F0000-0x00000000756A1000-memory.dmp

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memory/2288-2-0x00000000750F0000-0x00000000756A1000-memory.dmp

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memory/2288-12-0x00000000750F0000-0x00000000756A1000-memory.dmp

Download

memory/3096-13-0x00000000750F0000-0x00000000756A1000-memory.dmp

Download

memory/3096-14-0x00000000750F0000-0x00000000756A1000-memory.dmp

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memory/3096-15-0x00000000750F0000-0x00000000756A1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads