njrat | 742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619

General

Target

742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe
Size

91KB
MD5

68328eb362c4c00f786688ea11e4f600
SHA1

e78f489dbd210fbc9a5f50ea376b0e796280d946
SHA256

742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619
SHA512

bbb63098f5fd79dfdc79264b0c5a9db8f91633bb83af790087361e5edb08481d693b96e7c0bad7f085bcfe58fcf188f1ffbde96f0890cec9e0a487d6549f522b
SSDEEP

1536:iFVu0rQqcNFQMh+gMTKXhBFZYZ7tq4q8YUG/e0OzO1KP:iFVu0rl6cgM+Rp0xTG/P+O1E

Score

10^/10

njrat hacked by ayoub th3 dz pro evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed by AyOuB Th3 Dz PrO

C2

ayoubbellagha.no-ip.biz:1177

Mutex

ccf3213dc9259e36a4ef2bbc1ad537e7

Attributes

reg_key
ccf3213dc9259e36a4ef2bbc1ad537e7
splitter
|'|'|

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
568	645.exe
1504	csrss.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
536	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ccf3213dc9259e36a4ef2bbc1ad537e7.exe	csrss.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ccf3213dc9259e36a4ef2bbc1ad537e7.exe	csrss.exe

Loads dropped DLL 1 IoCs

pid	Process
568	645.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ccf3213dc9259e36a4ef2bbc1ad537e7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe\" .."	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ccf3213dc9259e36a4ef2bbc1ad537e7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe\" .."	csrss.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe
Token: 33	1504	csrss.exe
Token: SeIncBasePriorityPrivilege	1504	csrss.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 568	1000	742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe	28
PID 1000 wrote to memory of 568	1000	742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe	28
PID 1000 wrote to memory of 568	1000	742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe	28
PID 1000 wrote to memory of 568	1000	742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe	28
PID 568 wrote to memory of 1504	568	645.exe	29
PID 568 wrote to memory of 1504	568	645.exe	29
PID 568 wrote to memory of 1504	568	645.exe	29
PID 568 wrote to memory of 1504	568	645.exe	29
PID 1504 wrote to memory of 536	1504	csrss.exe	30
PID 1504 wrote to memory of 536	1504	csrss.exe	30
PID 1504 wrote to memory of 536	1504	csrss.exe	30
PID 1504 wrote to memory of 536	1504	csrss.exe	30

C:\Users\Admin\AppData\Local\Temp\742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe
"C:\Users\Admin\AppData\Local\Temp\742cae6ac17337daa5e9ece7a34b973e8ee0c3b57c35bc60af580bf3e1e10619.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Users\Admin\AppData\Local\Temp\645.exe
  C:\Users\Admin\AppData\Local\Temp\645.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Users\Admin\AppData\Local\Temp\csrss.exe
    "C:\Users\Admin\AppData\Local\Temp\csrss.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1504
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\csrss.exe" "csrss.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:536

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\645.exe

Filesize
24KB

MD5
6b04f86943c754127d808898b6247d9e

SHA1
82c9b58d95becce3bf6f4836c9f4b4b0383ae867

SHA256
93646f14fc6e44647167ece5530f66de294f2e876e6678d47c690804f4603da4

SHA512
e5d4e8852dac55a5ed7cc8bbc2f82b4b60db64208cb8681e20428993d17432532ce88932de7de2c12924583f9a7dc2a849fcca28e701f5a72fe2448613931782

Download Submit
C:\Users\Admin\AppData\Local\Temp\645.exe

Filesize
24KB

MD5
6b04f86943c754127d808898b6247d9e

SHA1
82c9b58d95becce3bf6f4836c9f4b4b0383ae867

SHA256
93646f14fc6e44647167ece5530f66de294f2e876e6678d47c690804f4603da4

SHA512
e5d4e8852dac55a5ed7cc8bbc2f82b4b60db64208cb8681e20428993d17432532ce88932de7de2c12924583f9a7dc2a849fcca28e701f5a72fe2448613931782

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss.exe

Filesize
24KB

MD5
6b04f86943c754127d808898b6247d9e

SHA1
82c9b58d95becce3bf6f4836c9f4b4b0383ae867

SHA256
93646f14fc6e44647167ece5530f66de294f2e876e6678d47c690804f4603da4

SHA512
e5d4e8852dac55a5ed7cc8bbc2f82b4b60db64208cb8681e20428993d17432532ce88932de7de2c12924583f9a7dc2a849fcca28e701f5a72fe2448613931782

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss.exe

Filesize
24KB

MD5
6b04f86943c754127d808898b6247d9e

SHA1
82c9b58d95becce3bf6f4836c9f4b4b0383ae867

SHA256
93646f14fc6e44647167ece5530f66de294f2e876e6678d47c690804f4603da4

SHA512
e5d4e8852dac55a5ed7cc8bbc2f82b4b60db64208cb8681e20428993d17432532ce88932de7de2c12924583f9a7dc2a849fcca28e701f5a72fe2448613931782

Download Submit
\Users\Admin\AppData\Local\Temp\csrss.exe

Filesize
24KB

MD5
6b04f86943c754127d808898b6247d9e

SHA1
82c9b58d95becce3bf6f4836c9f4b4b0383ae867

SHA256
93646f14fc6e44647167ece5530f66de294f2e876e6678d47c690804f4603da4

SHA512
e5d4e8852dac55a5ed7cc8bbc2f82b4b60db64208cb8681e20428993d17432532ce88932de7de2c12924583f9a7dc2a849fcca28e701f5a72fe2448613931782

Download Submit
memory/568-61-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/568-60-0x0000000076561000-0x0000000076563000-memory.dmp

Filesize
8KB

Download
memory/568-67-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/1000-54-0x00000000008F0000-0x000000000090E000-memory.dmp

Filesize
120KB

Download
memory/1000-56-0x0000000000600000-0x0000000000618000-memory.dmp

Filesize
96KB

Download
memory/1000-55-0x00000000005E0000-0x00000000005EA000-memory.dmp

Filesize
40KB

Download
memory/1504-68-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download
memory/1504-71-0x0000000074AA0000-0x000000007504B000-memory.dmp

Filesize
5.7MB

Download

Analysis

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