njrat | 2a3a5f544051d55d3182e207d3064fcd7edebd879665a14a9d1da3f9e92752c3

General

Target

91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe
Size

446KB
MD5

91095a7a271af53106eb3fbbdc51c20a
SHA1

20a3c093653afc1f2c5aeb6851e61dbc3e961ee1
SHA256

2a3a5f544051d55d3182e207d3064fcd7edebd879665a14a9d1da3f9e92752c3
SHA512

e0680c56a197bbb4f79d0a712812dcaaf695dbe911d0b8697c1f0347915021d20d4aabc4c031fd607eb4fa6c4b6ba64de4b04e502f69e461a2ae5f93a81261c9
SSDEEP

3072:q2Be0PLUxUa8FDSKc45xUh/wKsRNwD0kHRoqVi2rhTJNam5zpP4XqAtIVVtNlNmF:XLUCa8FDbtUhB8wNHVi2dpgaUIVdrjc

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
1736	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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1616	smsm.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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fa5dba3d74470430cec4a55a436040bd = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .."	smsm.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fa5dba3d74470430cec4a55a436040bd = "\"C:\\Users\\Admin\\AppData\\Roaming\\smsm.exe\" .."	smsm.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	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe
Token: 33	1616	smsm.exe
Token: SeIncBasePriorityPrivilege	1616	smsm.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 1616	1320	91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe	89
PID 1320 wrote to memory of 1616	1320	91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe	89
PID 1320 wrote to memory of 1616	1320	91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe	89
PID 1616 wrote to memory of 1736	1616	smsm.exe	93
PID 1616 wrote to memory of 1736	1616	smsm.exe	93
PID 1616 wrote to memory of 1736	1616	smsm.exe	93

C:\Users\Admin\AppData\Local\Temp\91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\91095a7a271af53106eb3fbbdc51c20a_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Users\Admin\AppData\Roaming\smsm.exe
  "C:\Users\Admin\AppData\Roaming\smsm.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\smsm.exe" "smsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1736

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

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

Filesize
446KB

MD5
91095a7a271af53106eb3fbbdc51c20a

SHA1
20a3c093653afc1f2c5aeb6851e61dbc3e961ee1

SHA256
2a3a5f544051d55d3182e207d3064fcd7edebd879665a14a9d1da3f9e92752c3

SHA512
e0680c56a197bbb4f79d0a712812dcaaf695dbe911d0b8697c1f0347915021d20d4aabc4c031fd607eb4fa6c4b6ba64de4b04e502f69e461a2ae5f93a81261c9

Download Submit
memory/1320-0-0x00000000749A2000-0x00000000749A3000-memory.dmp

Filesize
4KB

Download
memory/1320-1-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/1320-2-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/1320-12-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-13-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-14-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download
memory/1616-15-0x00000000749A0000-0x0000000074F51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads