njrat | 246ab25a7240d684c1a6bf5abd6bcd6f13e0d86c97940883bc249e2b7cb23853

General

Target

2fb7fc0949aa14070e5e5d1ec37d48e7.exe
Size

65KB
MD5

2fb7fc0949aa14070e5e5d1ec37d48e7
SHA1

9b0043790d9881f690e11086004d3218648d9c22
SHA256

246ab25a7240d684c1a6bf5abd6bcd6f13e0d86c97940883bc249e2b7cb23853
SHA512

13a475df0962a72f8c817511dbda22efb07c41167ebac229c7b0193a88c0f6bf383025e1327732b152d8a53ab4358d4b40d3c6f4b09cc3881165bda826e16f3b
SSDEEP

1536:FIkoUoN36tSQviFw1gnRuBnvbLfLteF3nLrB9z3nNaF9bIS9vM:FIkoUoN36tSQviFC08BnHfWl9zdaF9bw

Score

10^/10

njrat hacked persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

C2

127.0.0.1:11964

Mutex

Exspa.exe

Attributes

reg_key
Exspa.exe
splitter
|Ghost|

Signatures

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

Deletes itself 1 IoCs

pid	Process
528	cmd.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Exspa.exe	Exspa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Exspa.exe	Exspa.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Exspa.url	Exspa.exe

Executes dropped EXE 1 IoCs

pid	Process
2988	Exspa.exe

Loads dropped DLL 1 IoCs

pid	Process
2980	2fb7fc0949aa14070e5e5d1ec37d48e7.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-1-5-21-2610426812-2871295383-373749122-1000\Software\Microsoft\Windows\CurrentVersion\Run\Exspa.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Exspa.exe\" .."	Exspa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Exspa.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Exspa.exe\" .."	Exspa.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
2	6.tcp.eu.ngrok.io
15	6.tcp.eu.ngrok.io
31	6.tcp.eu.ngrok.io

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	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe
Token: 33	2988	Exspa.exe
Token: SeIncBasePriorityPrivilege	2988	Exspa.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2988	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	28
PID 2980 wrote to memory of 2988	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	28
PID 2980 wrote to memory of 2988	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	28
PID 2980 wrote to memory of 2988	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	28
PID 2980 wrote to memory of 528	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	29
PID 2980 wrote to memory of 528	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	29
PID 2980 wrote to memory of 528	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	29
PID 2980 wrote to memory of 528	2980	2fb7fc0949aa14070e5e5d1ec37d48e7.exe	29
PID 528 wrote to memory of 1164	528	cmd.exe	31
PID 528 wrote to memory of 1164	528	cmd.exe	31
PID 528 wrote to memory of 1164	528	cmd.exe	31
PID 528 wrote to memory of 1164	528	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\2fb7fc0949aa14070e5e5d1ec37d48e7.exe
"C:\Users\Admin\AppData\Local\Temp\2fb7fc0949aa14070e5e5d1ec37d48e7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Local\Temp\Exspa.exe
  "C:\Users\Admin\AppData\Local\Temp\Exspa.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\2fb7fc0949aa14070e5e5d1ec37d48e7.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:528
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    PID:1164

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

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\Exspa.exe

Filesize
65KB

MD5
2fb7fc0949aa14070e5e5d1ec37d48e7

SHA1
9b0043790d9881f690e11086004d3218648d9c22

SHA256
246ab25a7240d684c1a6bf5abd6bcd6f13e0d86c97940883bc249e2b7cb23853

SHA512
13a475df0962a72f8c817511dbda22efb07c41167ebac229c7b0193a88c0f6bf383025e1327732b152d8a53ab4358d4b40d3c6f4b09cc3881165bda826e16f3b

Download Submit
memory/2980-0-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-1-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2980-2-0x0000000000740000-0x0000000000780000-memory.dmp

Filesize
256KB

Download
memory/2980-13-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2988-11-0x00000000002C0000-0x0000000000300000-memory.dmp

Filesize
256KB

Download
memory/2988-10-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2988-12-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2988-18-0x00000000002C0000-0x0000000000300000-memory.dmp

Filesize
256KB

Download
memory/2988-17-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads