njrat | e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa

General

Target
e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe
Size 23KB
Sample240423-fsz7bade34
SHA256 e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa
MD5 7136abaf51bf35bff8ba6271def28147
SHA1 d564f8cded6cd7146f1383d66822ef6eb96ee3ee
SHA512 22dcce241ec51ce1622c018732ca576e196e8e5b9b0a5b20f0656df1c75c5a6151d174f289da19552835efda14e6aefca41e95f1b29d0e6e46004307d9a71186
SSDEEP 384:AoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIK:P7O89p2rRpcnuk
MD5 SHA1 SHA512 SSDEEP

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
468	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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	server.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-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7657c14284185fbd3fb108b43c7467ba = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe
Token: 33	3892	server.exe
Token: SeIncBasePriorityPrivilege	3892	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 3892	2264	e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe	98
PID 2264 wrote to memory of 3892	2264	e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe	98
PID 2264 wrote to memory of 3892	2264	e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe	98
PID 3892 wrote to memory of 468	3892	server.exe	102
PID 3892 wrote to memory of 468	3892	server.exe	102
PID 3892 wrote to memory of 468	3892	server.exe	102

C:\Users\Admin\AppData\Local\Temp\e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe
"C:\Users\Admin\AppData\Local\Temp\e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3892
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:468

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

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 23KB
SHA256 e766de1132bdd1ece4ca091e7f2fc3fba15e8cca734680af7996d01341adbbaa
MD5 7136abaf51bf35bff8ba6271def28147
SHA1 d564f8cded6cd7146f1383d66822ef6eb96ee3ee
SHA512 22dcce241ec51ce1622c018732ca576e196e8e5b9b0a5b20f0656df1c75c5a6151d174f289da19552835efda14e6aefca41e95f1b29d0e6e46004307d9a71186
SSDEEP 384:AoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZIK:P7O89p2rRpcnuk
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2264-1-0x0000000000BF0000-0x0000000000C00000-memory.dmp

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memory/2264-0-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/2264-2-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/2264-13-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/3892-14-0x0000000001990000-0x00000000019A0000-memory.dmp

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memory/3892-12-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/3892-15-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/3892-16-0x0000000074B00000-0x00000000750B1000-memory.dmp

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memory/3892-17-0x0000000001990000-0x00000000019A0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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