njrat | 861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953

General

Target

861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
Size

93KB
MD5

ccb06fa4b339cc8ff5ae2331dda084b4
SHA1

0d1af1ebe0cb29ebf9ea4c76a7630661553b64db
SHA256

861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953
SHA512

a716f4906ac8ba1135471deef804e886891cfdc7b3f8b8d471a8fec0aadb0a39051b5adb3930c6a715b2c7a6a46168bacb6ef9705925bfd02fd88b4ebc335952
SSDEEP

1536:InwEnYi9bzKuZ+8uZ3nV5XS65mkrPZ58kzQ+e+e+:IwaYi9bsh7J7M+e+e+

Score

10^/10

njrat steam discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

Steam

C2

40.80.147.203:8080

Mutex

Steam

Attributes

reg_key
Steam
splitter
|-F-|

Signatures

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

Drops startup file 5 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.lnk	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.lnk	Steam.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.exe	Steam.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.exe	Steam.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.exe	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2284	Steam.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Steam = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Steam.URL"	Steam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Steam2 = "C:\\Windows\\Steam.exe"	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Steam2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Steam.URL"	Steam.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Steam2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Steam.URL"	Steam.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Steam = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Steam.URL"	Steam.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Steam.exe	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
File opened for modification	C:\Windows\Steam.exe	attrib.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Steam.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe
Token: 33	2284	Steam.exe
Token: SeIncBasePriorityPrivilege	2284	Steam.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2284	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	30
PID 2192 wrote to memory of 2284	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	30
PID 2192 wrote to memory of 2284	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	30
PID 2192 wrote to memory of 2284	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	30
PID 2192 wrote to memory of 2692	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	31
PID 2192 wrote to memory of 2692	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	31
PID 2192 wrote to memory of 2692	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	31
PID 2192 wrote to memory of 2692	2192	861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe	31
PID 2284 wrote to memory of 3012	2284	Steam.exe	33
PID 2284 wrote to memory of 3012	2284	Steam.exe	33
PID 2284 wrote to memory of 3012	2284	Steam.exe	33
PID 2284 wrote to memory of 3012	2284	Steam.exe	33
PID 2284 wrote to memory of 2636	2284	Steam.exe	34
PID 2284 wrote to memory of 2636	2284	Steam.exe	34
PID 2284 wrote to memory of 2636	2284	Steam.exe	34
PID 2284 wrote to memory of 2636	2284	Steam.exe	34

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2692	attrib.exe
3012	attrib.exe
2636	attrib.exe

C:\Users\Admin\AppData\Local\Temp\861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe
"C:\Users\Admin\AppData\Local\Temp\861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\Steam.exe
  "C:\Windows\Steam.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.exe"
    3⤵
    - Drops startup file
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3012
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Steam.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2636
- C:\Windows\SysWOW64\attrib.exe
  attrib +h +r +s "C:\Windows\Steam.exe"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:2692

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

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Steam.lnk

Filesize
1KB

MD5
6a3a5abf95afd78bb71ec644e7a7d9a8

SHA1
8e12c3edcb834d4b1b268f99df871a838e3fe787

SHA256
bf5e9d8df74a978786ae18c57ba64d7a87cde91d15396cd0c62ee470259645c8

SHA512
f7df2eec5b5a75110270ae634826219febf775aba776c5289b7c375e5d6b233c631750a5f69d0fc0fc3973b16f9a11e6b97028cecfbdeb3a535b0c3b3a664974

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Steam.lnk

Filesize
1012B

MD5
a164fb3908c0529a02916875f6e5ab75

SHA1
4f792500be2613caf27501275683ca65a027061a

SHA256
39b5b71b35302228e7cfddfceda08e680896f484f9c9d39d7a6dbbd1837f97ba

SHA512
84d95a10b621d10391252e544402ae1215852bb018705e0f0d06b79273d05d30cc2a9d3b4a2acafb6152d9d3d3a9a1baf50e74af3bc1ab98217bc2b473b0debe

Download Submit
C:\Windows\Steam.exe

Filesize
93KB

MD5
ccb06fa4b339cc8ff5ae2331dda084b4

SHA1
0d1af1ebe0cb29ebf9ea4c76a7630661553b64db

SHA256
861c62fc1b264801e17d6a61ac6579a3b7d6d39e2f35aec69fc1b8300f42c953

SHA512
a716f4906ac8ba1135471deef804e886891cfdc7b3f8b8d471a8fec0aadb0a39051b5adb3930c6a715b2c7a6a46168bacb6ef9705925bfd02fd88b4ebc335952

Download Submit
memory/2192-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x0000000000A30000-0x0000000000A4E000-memory.dmp

Filesize
120KB

Download
memory/2192-10-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2284-11-0x0000000000EA0000-0x0000000000EBE000-memory.dmp

Filesize
120KB

Download
memory/2284-16-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2284-19-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2284-20-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads