njrat | d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba

General

Target

d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe
Size

29KB
MD5

f1bc51554d061e253ee70be76d5257c7
SHA1

f21ed970c458f71476566b64acfa9939d8bad6f4
SHA256

d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba
SHA512

67d2542f34fb81d2eaa490d625542f8ed3aa74e5f2acbf0a1fddf4e8d6a0734fb9f3f1f78f7a87ef456d47125db9113b1e839b7e02788edf92da7ba899c83074
SSDEEP

384:bhQXpl7dzns8oDw/LRP55/4GWmqDSeXegLGBsbh0w4wlAokw9OhgOL1vYRGOZzZ1:bE7Js8oDSJz4wqZXenBKh0p29SgRec

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

lovesafa.no-ip.biz:1177

Mutex

e79d569ba77562f0d4316e586835f0a2

Attributes

reg_key
e79d569ba77562f0d4316e586835f0a2
splitter
|'|'|

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4328	Chrome.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1484	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e79d569ba77562f0d4316e586835f0a2.exe	Chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e79d569ba77562f0d4316e586835f0a2.exe	Chrome.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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e79d569ba77562f0d4316e586835f0a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Chrome.exe\" .."	Chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\e79d569ba77562f0d4316e586835f0a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Chrome.exe\" .."	Chrome.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 45 IoCs

pid	Process
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe
4328	Chrome.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4328	Chrome.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 4328	4572	d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe	81
PID 4572 wrote to memory of 4328	4572	d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe	81
PID 4572 wrote to memory of 4328	4572	d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe	81
PID 4328 wrote to memory of 1484	4328	Chrome.exe	82
PID 4328 wrote to memory of 1484	4328	Chrome.exe	82
PID 4328 wrote to memory of 1484	4328	Chrome.exe	82

C:\Users\Admin\AppData\Local\Temp\d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe
"C:\Users\Admin\AppData\Local\Temp\d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\AppData\Local\Temp\Chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4328
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Chrome.exe" "Chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1484

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
29KB

MD5
f1bc51554d061e253ee70be76d5257c7

SHA1
f21ed970c458f71476566b64acfa9939d8bad6f4

SHA256
d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba

SHA512
67d2542f34fb81d2eaa490d625542f8ed3aa74e5f2acbf0a1fddf4e8d6a0734fb9f3f1f78f7a87ef456d47125db9113b1e839b7e02788edf92da7ba899c83074

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

Filesize
29KB

MD5
f1bc51554d061e253ee70be76d5257c7

SHA1
f21ed970c458f71476566b64acfa9939d8bad6f4

SHA256
d1742aefc94c12b6a3b54abc9536d7876d61809e0275d4e3a977571de4a3b5ba

SHA512
67d2542f34fb81d2eaa490d625542f8ed3aa74e5f2acbf0a1fddf4e8d6a0734fb9f3f1f78f7a87ef456d47125db9113b1e839b7e02788edf92da7ba899c83074

Download Submit
memory/4328-138-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4328-139-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4572-132-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download
memory/4572-136-0x0000000074D00000-0x00000000752B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

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