84d12ea1b0b2818c8b6d41244b189fdc86d37e8d4771bfcae87b241d4d18d12a

Analysis

max time kernel
112s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2023, 19:39

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General

Target

Uninstall Lunar Client.exe
Size

234KB
MD5

94cd5e8c004aecfae197f0ebd97276e1
SHA1

f0c289d8dd74bc33c273b397a4eb01c4cacfca78
SHA256

84d12ea1b0b2818c8b6d41244b189fdc86d37e8d4771bfcae87b241d4d18d12a
SHA512

07441a6475d4a7100dc45c152733346a0976d7f25c64b004f6e0fe0db16810cb83625f28e37cc799dd21a00878feadef3476cb709c3d62dfd25274c0aca44c0e
SSDEEP

6144:T740IQeeeeeeeeeeeeeeee7eeeeeeeeeeeeeezeeeeeeeeeeeeeeeeee7eeeeeeD:/xeeeeeeeeeeeeeeee7eeeeeeeeeeeeT

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4840	Un_A.exe

Loads dropped DLL 1 IoCs

pid	Process
4840	Un_A.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 WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 4840	4872	Uninstall Lunar Client.exe	80
PID 4872 wrote to memory of 4840	4872	Uninstall Lunar Client.exe	80
PID 4872 wrote to memory of 4840	4872	Uninstall Lunar Client.exe	80

C:\Users\Admin\AppData\Local\Temp\Uninstall Lunar Client.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall Lunar Client.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:4840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Local\Temp\nst5E62.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
234KB

MD5
94cd5e8c004aecfae197f0ebd97276e1

SHA1
f0c289d8dd74bc33c273b397a4eb01c4cacfca78

SHA256
84d12ea1b0b2818c8b6d41244b189fdc86d37e8d4771bfcae87b241d4d18d12a

SHA512
07441a6475d4a7100dc45c152733346a0976d7f25c64b004f6e0fe0db16810cb83625f28e37cc799dd21a00878feadef3476cb709c3d62dfd25274c0aca44c0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe

Filesize
234KB

MD5
94cd5e8c004aecfae197f0ebd97276e1

SHA1
f0c289d8dd74bc33c273b397a4eb01c4cacfca78

SHA256
84d12ea1b0b2818c8b6d41244b189fdc86d37e8d4771bfcae87b241d4d18d12a

SHA512
07441a6475d4a7100dc45c152733346a0976d7f25c64b004f6e0fe0db16810cb83625f28e37cc799dd21a00878feadef3476cb709c3d62dfd25274c0aca44c0e

Download Submit