2307c4119e4aba798b67546b161a41fabb05a79e0ba96b09b5bd48cdb012eb1c

Analysis

max time kernel
96s
max time network
138s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
03-01-2025 08:55

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General

Target

$R0/Uninstall DesktopWaifu.exe
Size

386KB
MD5

c3682b2dafa1c0041778ec71e96d3d95
SHA1

0af826f849e4663f414d052589cac906cec70af5
SHA256

36b958a866e80ce467fc64eec3a507f33464bc655eb569e98b3612ee4fec21fe
SHA512

0654b1779f4671fbdeed23a71a82dbb928b8a1301b4ac796f64d17bcc7d5077c06c7c2ee338658e170ce52710844be98acd22f888e7aa82a2edcd16414f03588
SSDEEP

3072:Kn77v00hEoDEtaux4FshRfezdMQTIKxitfuofETsP5aH2tvhOEA1RJCir86SrSrG:K740IB9R8IK9hys2t0EyL+ya7

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-3829776853-2076861744-2973657197-1000\Control Panel\International\Geo\Nation	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
1812	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
1812	Un_A.exe
1812	Un_A.exe
1812	Un_A.exe
1812	Un_A.exe
1812	Un_A.exe
1812	Un_A.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
4720	tasklist.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	find.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasklist.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Uninstall DesktopWaifu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	Un_A.exe
1812	Un_A.exe
4720	tasklist.exe
4720	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4720	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 1812	4904	Uninstall DesktopWaifu.exe	81
PID 4904 wrote to memory of 1812	4904	Uninstall DesktopWaifu.exe	81
PID 4904 wrote to memory of 1812	4904	Uninstall DesktopWaifu.exe	81
PID 1812 wrote to memory of 4696	1812	Un_A.exe	88
PID 1812 wrote to memory of 4696	1812	Un_A.exe	88
PID 1812 wrote to memory of 4696	1812	Un_A.exe	88
PID 4696 wrote to memory of 4720	4696	cmd.exe	90
PID 4696 wrote to memory of 4720	4696	cmd.exe	90
PID 4696 wrote to memory of 4720	4696	cmd.exe	90
PID 4696 wrote to memory of 3816	4696	cmd.exe	91
PID 4696 wrote to memory of 3816	4696	cmd.exe	91
PID 4696 wrote to memory of 3816	4696	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall DesktopWaifu.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall DesktopWaifu.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4904
- 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\$R0\
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq DesktopWaifu.exe" /FO csv | "C:\Windows\system32\find.exe" "DesktopWaifu.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4696
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq DesktopWaifu.exe" /FO csv
      4⤵
      Enumerates processes with tasklist
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4720
  - - C:\Windows\SysWOW64\find.exe
      "C:\Windows\system32\find.exe" "DesktopWaifu.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsu8609.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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C:\Users\Admin\AppData\Local\Temp\nsu8609.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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C:\Users\Admin\AppData\Local\Temp\nsu8609.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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C:\Users\Admin\AppData\Local\Temp\nsu8609.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

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

Filesize
386KB

MD5
c3682b2dafa1c0041778ec71e96d3d95

SHA1
0af826f849e4663f414d052589cac906cec70af5

SHA256
36b958a866e80ce467fc64eec3a507f33464bc655eb569e98b3612ee4fec21fe

SHA512
0654b1779f4671fbdeed23a71a82dbb928b8a1301b4ac796f64d17bcc7d5077c06c7c2ee338658e170ce52710844be98acd22f888e7aa82a2edcd16414f03588

Download Submit