njrat | 1ade6c3079bf4457f862540f2f378e1758111482c207da32d3fecae5f1f9e275

Analysis

max time kernel
188s
max time network
183s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/11/2022, 12:56

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General

Target

3e90f4aa1725740f32d8c6a7c7ed77db.exe
Size

37KB
MD5

3e90f4aa1725740f32d8c6a7c7ed77db
SHA1

a42f5985580e647dbd491d2b7e1f54bdd967883f
SHA256

1ade6c3079bf4457f862540f2f378e1758111482c207da32d3fecae5f1f9e275
SHA512

64b1f0322bb07e854ff5d50527462519bc2bde05b582b62e809c5e0d80f3e3a1dba9808902ca4abaf7299614de5fd06028026594dc20e0d28d554f26b6d715ec
SSDEEP

384:WcmBkiy1nDNGRn5IyUv8IR/hh0/aKVEcrAF+rMRTyN/0L+EcoinblneHQM3epzXi:Jd5M5jUvxRoCKWcrM+rMRa8Nuzd+t

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

37.144.68.25:8080

Mutex

1bca132747fbbbf8717bb4a20e6daa6d

Attributes

reg_key
1bca132747fbbbf8717bb4a20e6daa6d
splitter
|'|'|

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1248	dllhost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1872	netsh.exe

Loads dropped DLL 1 IoCs

pid	Process
1144	3e90f4aa1725740f32d8c6a7c7ed77db.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\1bca132747fbbbf8717bb4a20e6daa6d = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\1bca132747fbbbf8717bb4a20e6daa6d = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe
1248	dllhost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1248	dllhost.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe
Token: 33	1248	dllhost.exe
Token: SeIncBasePriorityPrivilege	1248	dllhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 1248	1144	3e90f4aa1725740f32d8c6a7c7ed77db.exe	28
PID 1144 wrote to memory of 1248	1144	3e90f4aa1725740f32d8c6a7c7ed77db.exe	28
PID 1144 wrote to memory of 1248	1144	3e90f4aa1725740f32d8c6a7c7ed77db.exe	28
PID 1144 wrote to memory of 1248	1144	3e90f4aa1725740f32d8c6a7c7ed77db.exe	28
PID 1248 wrote to memory of 1872	1248	dllhost.exe	29
PID 1248 wrote to memory of 1872	1248	dllhost.exe	29
PID 1248 wrote to memory of 1872	1248	dllhost.exe	29
PID 1248 wrote to memory of 1872	1248	dllhost.exe	29

C:\Users\Admin\AppData\Local\Temp\3e90f4aa1725740f32d8c6a7c7ed77db.exe
"C:\Users\Admin\AppData\Local\Temp\3e90f4aa1725740f32d8c6a7c7ed77db.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Roaming\dllhost.exe
  "C:\Users\Admin\AppData\Roaming\dllhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1248
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\dllhost.exe" "dllhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\dllhost.exe

Filesize
37KB

MD5
3e90f4aa1725740f32d8c6a7c7ed77db

SHA1
a42f5985580e647dbd491d2b7e1f54bdd967883f

SHA256
1ade6c3079bf4457f862540f2f378e1758111482c207da32d3fecae5f1f9e275

SHA512
64b1f0322bb07e854ff5d50527462519bc2bde05b582b62e809c5e0d80f3e3a1dba9808902ca4abaf7299614de5fd06028026594dc20e0d28d554f26b6d715ec

Download Submit
C:\Users\Admin\AppData\Roaming\dllhost.exe

Filesize
37KB

MD5
3e90f4aa1725740f32d8c6a7c7ed77db

SHA1
a42f5985580e647dbd491d2b7e1f54bdd967883f

SHA256
1ade6c3079bf4457f862540f2f378e1758111482c207da32d3fecae5f1f9e275

SHA512
64b1f0322bb07e854ff5d50527462519bc2bde05b582b62e809c5e0d80f3e3a1dba9808902ca4abaf7299614de5fd06028026594dc20e0d28d554f26b6d715ec

Download Submit
\Users\Admin\AppData\Roaming\dllhost.exe

Filesize
37KB

MD5
3e90f4aa1725740f32d8c6a7c7ed77db

SHA1
a42f5985580e647dbd491d2b7e1f54bdd967883f

SHA256
1ade6c3079bf4457f862540f2f378e1758111482c207da32d3fecae5f1f9e275

SHA512
64b1f0322bb07e854ff5d50527462519bc2bde05b582b62e809c5e0d80f3e3a1dba9808902ca4abaf7299614de5fd06028026594dc20e0d28d554f26b6d715ec

Download Submit
memory/1144-54-0x00000000763F1000-0x00000000763F3000-memory.dmp

Filesize
8KB

Download
memory/1144-55-0x0000000074AD0000-0x000000007507B000-memory.dmp

Filesize
5.7MB

Download
memory/1144-61-0x0000000074AD0000-0x000000007507B000-memory.dmp

Filesize
5.7MB

Download
memory/1248-62-0x0000000074AD0000-0x000000007507B000-memory.dmp

Filesize
5.7MB

Download
memory/1248-65-0x0000000074AD0000-0x000000007507B000-memory.dmp

Filesize
5.7MB

Download