njrat | b639bd78929734b68691f164cb24f3bacb988f88127c28583db018c1f8582a5c

General

Target
37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe
Size 23KB
Sample240729-eqqz7asfmn
SHA256 b639bd78929734b68691f164cb24f3bacb988f88127c28583db018c1f8582a5c
MD5 37c619f2cfa65442f38d00a54772e6d5
SHA1 ad20e4399d795b4641da9025c575a631c274e154
SHA512 0611cdec27baa2474383cf7059aba9b0a215c1768d9292df1657e010f5b58df8e781a1735f945b5bc0623f16ad119c3357211f76395c602cbe5129f056eabacc
SSDEEP 384:MMK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZil:fb9glF51LRpcnuF
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat discovery evasion persistence privilege_escalation 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
3420	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-1-5-21-1266786182-1874524688-71015548-1000\Control Panel\International\Geo\Nation	37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3424	server.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe
Token: 33	3424	server.exe
Token: SeIncBasePriorityPrivilege	3424	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 544 wrote to memory of 3424	544	37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe	84
PID 544 wrote to memory of 3424	544	37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe	84
PID 544 wrote to memory of 3424	544	37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe	84
PID 3424 wrote to memory of 3420	3424	server.exe	85
PID 3424 wrote to memory of 3420	3424	server.exe	85
PID 3424 wrote to memory of 3420	3424	server.exe	85

C:\Users\Admin\AppData\Local\Temp\37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\37c619f2cfa65442f38d00a54772e6d5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:544
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3424
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 23KB
SHA256 b639bd78929734b68691f164cb24f3bacb988f88127c28583db018c1f8582a5c
MD5 37c619f2cfa65442f38d00a54772e6d5
SHA1 ad20e4399d795b4641da9025c575a631c274e154
SHA512 0611cdec27baa2474383cf7059aba9b0a215c1768d9292df1657e010f5b58df8e781a1735f945b5bc0623f16ad119c3357211f76395c602cbe5129f056eabacc
SSDEEP 384:MMK6b2GZsx/Yr1+liORH1kcPFQ6Lg9gSOYRr9mRvR6JZlbw8hqIusZzZil:fb9glF51LRpcnuF
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/544-0-0x0000000074CD2000-0x0000000074CD3000-memory.dmp

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memory/544-1-0x0000000074CD0000-0x0000000075281000-memory.dmp

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memory/544-2-0x0000000074CD0000-0x0000000075281000-memory.dmp

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memory/544-12-0x0000000074CD0000-0x0000000075281000-memory.dmp

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memory/3424-13-0x0000000074CD0000-0x0000000075281000-memory.dmp

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memory/3424-14-0x0000000074CD0000-0x0000000075281000-memory.dmp

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memory/3424-15-0x0000000074CD0000-0x0000000075281000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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