njrat | cf5a0b717ea5d16d8d20760a6c29561f762988f3ff5a54d6a423c0379c57ee1f

General

Target

ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe
Size

405KB
MD5

ffcb6225c7e88893052511133926e4b9
SHA1

ad1046228ed2d6797382440ea4ed689b0d466f1d
SHA256

cf5a0b717ea5d16d8d20760a6c29561f762988f3ff5a54d6a423c0379c57ee1f
SHA512

75999b2d228c4488ea0d7f988ea6aed25320b06591b60ba001075a2ee3cf36f93b7b386bb6b7890ff70b1874fd53baf2856e522a2be885aeb54031898133703a
SSDEEP

6144:9pnwJiXFD2Ehc5JAOcBXnyOpnwRiXFD2Ehc5JA:bwJi1D23G1vwRi1D23

Score

10^/10

njrat 2018 evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

2018

C2

ccdollar.linkpc.net:1177

Mutex

08d47111f624fd2d703f71f2ccc5487d

Attributes

reg_key
08d47111f624fd2d703f71f2ccc5487d
splitter
|'|'|

Signatures

Njrat family
njrat
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
628	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1628	SynTPHelper.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\08d47111f624fd2d703f71f2ccc5487d = "\"C:\\Windows\\SynTPHelper.exe\" .."	SynTPHelper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\08d47111f624fd2d703f71f2ccc5487d = "\"C:\\Windows\\SynTPHelper.exe\" .."	SynTPHelper.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SynTPHelper.exe	ffcb6225c7e88893052511133926e4b9_JaffaCakes118.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe
Token: 33	1628	SynTPHelper.exe
Token: SeIncBasePriorityPrivilege	1628	SynTPHelper.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1628	1608	ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe	99
PID 1608 wrote to memory of 1628	1608	ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe	99
PID 1628 wrote to memory of 628	1628	SynTPHelper.exe	101
PID 1628 wrote to memory of 628	1628	SynTPHelper.exe	101

C:\Users\Admin\AppData\Local\Temp\ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffcb6225c7e88893052511133926e4b9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Windows\SynTPHelper.exe
  "C:\Windows\SynTPHelper.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\SynTPHelper.exe" "SynTPHelper.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:628

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

C:\Windows\SynTPHelper.exe

Filesize
405KB

MD5
ffcb6225c7e88893052511133926e4b9

SHA1
ad1046228ed2d6797382440ea4ed689b0d466f1d

SHA256
cf5a0b717ea5d16d8d20760a6c29561f762988f3ff5a54d6a423c0379c57ee1f

SHA512
75999b2d228c4488ea0d7f988ea6aed25320b06591b60ba001075a2ee3cf36f93b7b386bb6b7890ff70b1874fd53baf2856e522a2be885aeb54031898133703a

Download Submit
memory/1608-6-0x000000001BF80000-0x000000001BF8C000-memory.dmp

Filesize
48KB

Download
memory/1608-1-0x000000001BED0000-0x000000001BF76000-memory.dmp

Filesize
664KB

Download
memory/1608-3-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1608-4-0x00007FFC30715000-0x00007FFC30716000-memory.dmp

Filesize
4KB

Download
memory/1608-5-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1608-0-0x00007FFC30715000-0x00007FFC30716000-memory.dmp

Filesize
4KB

Download
memory/1608-7-0x000000001C590000-0x000000001CA5E000-memory.dmp

Filesize
4.8MB

Download
memory/1608-2-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1608-20-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1628-21-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1628-22-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1628-23-0x00007FFC30460000-0x00007FFC30E01000-memory.dmp

Filesize
9.6MB

Download
memory/1628-24-0x000000001C8D0000-0x000000001C96C000-memory.dmp

Filesize
624KB

Download
memory/1628-25-0x00000000015D0000-0x00000000015D8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads