njrat | 289f6890ee628fd29a5245050f3c76ed792f2330dba89b0a62d543199e38df26

Analysis

max time kernel
148s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 20:14

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General

Target

4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe
Size

159KB
MD5

4ecdb01c6de5e2274aabb4a486c9f471
SHA1

dcf959ac82e651e1dce3526d37194439ccac03e9
SHA256

289f6890ee628fd29a5245050f3c76ed792f2330dba89b0a62d543199e38df26
SHA512

a1d2753ea61a1c5463ca1a96b16d283810a2f6f5d67a1cc23351af3c5a2112d534b3f03c859cfe1fdace9473e033e2d56650a1c26301a2c55dab262db2b3012f
SSDEEP

3072:WXyZ/BfyBnWAf1Fm1WoJpcmO0btThdSuV6GGKy3Ga14yjJ7GfMakyw5bXCkJN:WXyZ/BfycaopcmO0bBhPoKVaj76iXC

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2372	smartscreen.exe
2928	smartscreen.exe
2180	smartscreen.exe

Loads dropped DLL 2 IoCs

pid	Process
688	cmd.exe
688	cmd.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\smart = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\smart.txt \| cmd"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\smart = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\smart.txt \| cmd"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\smart = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\smart.txt \| cmd"	reg.exe

System Location Discovery: System Language Discovery 1 TTPs 12 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smartscreen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smartscreen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smartscreen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2780	schtasks.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

description	pid	Process
Token: SeDebugPrivilege	1080	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe
Token: SeDebugPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: SeDebugPrivilege	2928	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: SeDebugPrivilege	2180	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe
Token: 33	2372	smartscreen.exe
Token: SeIncBasePriorityPrivilege	2372	smartscreen.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 688	1080	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe	30
PID 1080 wrote to memory of 688	1080	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe	30
PID 1080 wrote to memory of 688	1080	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe	30
PID 1080 wrote to memory of 688	1080	4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe	30
PID 688 wrote to memory of 2372	688	cmd.exe	32
PID 688 wrote to memory of 2372	688	cmd.exe	32
PID 688 wrote to memory of 2372	688	cmd.exe	32
PID 688 wrote to memory of 2372	688	cmd.exe	32
PID 2372 wrote to memory of 2792	2372	smartscreen.exe	33
PID 2372 wrote to memory of 2792	2372	smartscreen.exe	33
PID 2372 wrote to memory of 2792	2372	smartscreen.exe	33
PID 2372 wrote to memory of 2792	2372	smartscreen.exe	33
PID 2792 wrote to memory of 2816	2792	cmd.exe	35
PID 2792 wrote to memory of 2816	2792	cmd.exe	35
PID 2792 wrote to memory of 2816	2792	cmd.exe	35
PID 2792 wrote to memory of 2816	2792	cmd.exe	35
PID 2372 wrote to memory of 2780	2372	smartscreen.exe	36
PID 2372 wrote to memory of 2780	2372	smartscreen.exe	36
PID 2372 wrote to memory of 2780	2372	smartscreen.exe	36
PID 2372 wrote to memory of 2780	2372	smartscreen.exe	36
PID 2132 wrote to memory of 2928	2132	taskeng.exe	39
PID 2132 wrote to memory of 2928	2132	taskeng.exe	39
PID 2132 wrote to memory of 2928	2132	taskeng.exe	39
PID 2132 wrote to memory of 2928	2132	taskeng.exe	39
PID 2928 wrote to memory of 2536	2928	smartscreen.exe	40
PID 2928 wrote to memory of 2536	2928	smartscreen.exe	40
PID 2928 wrote to memory of 2536	2928	smartscreen.exe	40
PID 2928 wrote to memory of 2536	2928	smartscreen.exe	40
PID 2536 wrote to memory of 760	2536	cmd.exe	42
PID 2536 wrote to memory of 760	2536	cmd.exe	42
PID 2536 wrote to memory of 760	2536	cmd.exe	42
PID 2536 wrote to memory of 760	2536	cmd.exe	42
PID 2132 wrote to memory of 2180	2132	taskeng.exe	43
PID 2132 wrote to memory of 2180	2132	taskeng.exe	43
PID 2132 wrote to memory of 2180	2132	taskeng.exe	43
PID 2132 wrote to memory of 2180	2132	taskeng.exe	43
PID 2180 wrote to memory of 1852	2180	smartscreen.exe	44
PID 2180 wrote to memory of 1852	2180	smartscreen.exe	44
PID 2180 wrote to memory of 1852	2180	smartscreen.exe	44
PID 2180 wrote to memory of 1852	2180	smartscreen.exe	44
PID 1852 wrote to memory of 1980	1852	cmd.exe	46
PID 1852 wrote to memory of 1980	1852	cmd.exe	46
PID 1852 wrote to memory of 1980	1852	cmd.exe	46
PID 1852 wrote to memory of 1980	1852	cmd.exe	46

C:\Users\Admin\AppData\Local\Temp\4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4ecdb01c6de5e2274aabb4a486c9f471_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\cmd.exe
  "cmd"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:688
- - C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
    "C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2372
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2792
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "smart" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\smart.txt" | cmd"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:2816
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2780

C:\Windows\system32\taskeng.exe
taskeng.exe {C7AB6EAF-213D-4EA0-AA83-E6C1D9FCAF40} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
  C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2536
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "smart" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\smart.txt" | cmd"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:760
- C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
  C:\Users\Admin\AppData\Roaming\screen\smartscreen.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1852
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "smart" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\smart.txt" | cmd"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\smart.txt

Filesize
65B

MD5
338c384942403d809b12400aebe9d92e

SHA1
63123b5d030708121240b5ebc993723566f36c06

SHA256
d4561c41a945289bdcc72107a79a9c18abd414b251bf857669858737ab76d1a6

SHA512
6cae0902875c3b8a7d83af6cadcfcfbcf31bfea71adaec32d241cd105ab8091a57349686d5daddcf431bfa672d0097a9a5c69067c6a3a40ac9046c48a83ea743

Download Submit
\Users\Admin\AppData\Roaming\screen\smartscreen.exe

Filesize
159KB

MD5
4ecdb01c6de5e2274aabb4a486c9f471

SHA1
dcf959ac82e651e1dce3526d37194439ccac03e9

SHA256
289f6890ee628fd29a5245050f3c76ed792f2330dba89b0a62d543199e38df26

SHA512
a1d2753ea61a1c5463ca1a96b16d283810a2f6f5d67a1cc23351af3c5a2112d534b3f03c859cfe1fdace9473e033e2d56650a1c26301a2c55dab262db2b3012f

Download Submit
memory/1080-0-0x0000000074871000-0x0000000074872000-memory.dmp

Filesize
4KB

Download
memory/1080-1-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1080-2-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/1080-8-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/2372-9-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/2372-11-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/2372-12-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download
memory/2372-13-0x0000000074870000-0x0000000074E1B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads