njrat | f2a62fb8daca9f557351d98508d973222e9b8cd32f8777d5bdb51718361ff2f2

General

Target

0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe
Size

481KB
MD5

0532b10bba03e7dd5671ab51015b204a
SHA1

02f9e72baf980fd9438336bce4e18c69c1ccfbb3
SHA256

f2a62fb8daca9f557351d98508d973222e9b8cd32f8777d5bdb51718361ff2f2
SHA512

6351700437ff5feeda5b3a3101ebf27eafdfa4d8880761ec7d199931f73a741ad4519e4643ceaa1be7b0a84403510c4e8678a2c4e2f5e7cfffd32364256d1c88
SSDEEP

3072:EO9BEZ57xfUFKLQBO3kywtWDc5Cfo5+2F62W/8NyzohGX8F67rTsV6/ZRETJtHw4:99OEHLD

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
3708	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	Tempserver.exe

Executes dropped EXE 2 IoCs

pid	Process
1840	Tempserver.exe
3092	chrome.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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\28814125f28be94b4a1e57e8f6f7ea8c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\28814125f28be94b4a1e57e8f6f7ea8c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe
Token: 33	3092	chrome.exe
Token: SeIncBasePriorityPrivilege	3092	chrome.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 1840	3560	0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe	88
PID 3560 wrote to memory of 1840	3560	0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe	88
PID 3560 wrote to memory of 1840	3560	0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe	88
PID 1840 wrote to memory of 3092	1840	Tempserver.exe	94
PID 1840 wrote to memory of 3092	1840	Tempserver.exe	94
PID 1840 wrote to memory of 3092	1840	Tempserver.exe	94
PID 3092 wrote to memory of 3708	3092	chrome.exe	97
PID 3092 wrote to memory of 3708	3092	chrome.exe	97
PID 3092 wrote to memory of 3708	3092	chrome.exe	97

C:\Users\Admin\AppData\Local\Temp\0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0532b10bba03e7dd5671ab51015b204a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Users\Admin\AppData\Local\Tempserver.exe
  "C:\Users\Admin\AppData\Local\Tempserver.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1840
- - C:\Users\Admin\AppData\Local\Temp\chrome.exe
    "C:\Users\Admin\AppData\Local\Temp\chrome.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3092
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chrome.exe" "chrome.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:3708

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Tempserver.exe

Filesize
23KB

MD5
871532f8a6ab19ef18d8c1f5523e1c4e

SHA1
6b8d44f63e6ce3782a34bd64c03e8474a2eb4899

SHA256
3906c918b1182ac066d513221075804a1b01f3bd6eb028a55c41f6d29d08c069

SHA512
3c5b75dc23c15c7142a47bfd7adb45b0660b068d93dd963efab700ab42839d1f7af003ed9aea8e9649d96ff4c52841329880a7b923fd29df0cad3f0c16cf7ce7

Download Submit
memory/1840-34-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/1840-23-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/1840-20-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/1840-22-0x0000000001A50000-0x0000000001A60000-memory.dmp

Filesize
64KB

Download
memory/3092-38-0x00000000010D0000-0x00000000010E0000-memory.dmp

Filesize
64KB

Download
memory/3092-37-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/3092-36-0x00000000010D0000-0x00000000010E0000-memory.dmp

Filesize
64KB

Download
memory/3092-35-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/3092-33-0x000000006F9A0000-0x000000006FF51000-memory.dmp

Filesize
5.7MB

Download
memory/3560-5-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/3560-10-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/3560-9-0x0000000004F90000-0x0000000004FA0000-memory.dmp

Filesize
64KB

Download
memory/3560-21-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/3560-8-0x0000000005810000-0x00000000059B6000-memory.dmp

Filesize
1.6MB

Download
memory/3560-7-0x0000000004FA0000-0x0000000004FF6000-memory.dmp

Filesize
344KB

Download
memory/3560-6-0x0000000004D00000-0x0000000004D0A000-memory.dmp

Filesize
40KB

Download
memory/3560-1-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/3560-4-0x0000000004D50000-0x0000000004DE2000-memory.dmp

Filesize
584KB

Download
memory/3560-3-0x0000000005260000-0x0000000005804000-memory.dmp

Filesize
5.6MB

Download
memory/3560-2-0x0000000004BF0000-0x0000000004C8C000-memory.dmp

Filesize
624KB

Download
memory/3560-0-0x0000000000230000-0x00000000002AE000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads