7f75cb2a49a49249201af85b33a363bdc04998a2f00f4681d826965a2bfaefd7

Analysis

max time kernel
150s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
09-10-2024 21:01

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General

Target

$R0/Uninstall setup.exe
Size

129KB
MD5

b612cd721b7b08c12ad7eb363b18e58a
SHA1

c0287bbe0ffffda6be056ad7531b48d3073ef7c1
SHA256

9f01d4eaa35a0b7643c8dfc5771b7db2a0fce73d3f0830b2f4d28fa045da3eda
SHA512

83a9eec462247642a1209ff63c032ffb20304c834ef7d5d84b0ac2f4171ab9cb386fa4a914720cd7a26580753969884fac7c2e8abc3e0b736d3e7f1d3c5861c2
SSDEEP

3072:8n77v00hEoDEtaumOclkzXD3yNWo5saH2tvhOEA1RJCir86SrSrv6Ia3v:8740IWOceTTyggss2t0EyL+ya/

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1544	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
1544	Un_A.exe
1544	Un_A.exe
1544	Un_A.exe
1544	Un_A.exe
1544	Un_A.exe
1544	Un_A.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
1860	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	Uninstall setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	find.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasklist.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1544	Un_A.exe
1544	Un_A.exe
1860	tasklist.exe
1860	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 1544	2268	Uninstall setup.exe	77
PID 2268 wrote to memory of 1544	2268	Uninstall setup.exe	77
PID 2268 wrote to memory of 1544	2268	Uninstall setup.exe	77
PID 1544 wrote to memory of 4764	1544	Un_A.exe	78
PID 1544 wrote to memory of 4764	1544	Un_A.exe	78
PID 1544 wrote to memory of 4764	1544	Un_A.exe	78
PID 4764 wrote to memory of 1860	4764	cmd.exe	80
PID 4764 wrote to memory of 1860	4764	cmd.exe	80
PID 4764 wrote to memory of 1860	4764	cmd.exe	80
PID 4764 wrote to memory of 3876	4764	cmd.exe	81
PID 4764 wrote to memory of 3876	4764	cmd.exe	81
PID 4764 wrote to memory of 3876	4764	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall setup.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall setup.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- 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⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1544
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq setup.exe" /FO csv | "C:\Windows\system32\find.exe" "setup.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4764
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq setup.exe" /FO csv
      4⤵
      Enumerates processes with tasklist
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1860
  - - C:\Windows\SysWOW64\find.exe
      "C:\Windows\system32\find.exe" "setup.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Process Discovery

T1057

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsn7540.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsn7540.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsn7540.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsn7540.tmp\nsExec.dll

Filesize
6KB

MD5
ec0504e6b8a11d5aad43b296beeb84b2

SHA1
91b5ce085130c8c7194d66b2439ec9e1c206497c

SHA256
5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

SHA512
3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

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

Filesize
129KB

MD5
b612cd721b7b08c12ad7eb363b18e58a

SHA1
c0287bbe0ffffda6be056ad7531b48d3073ef7c1

SHA256
9f01d4eaa35a0b7643c8dfc5771b7db2a0fce73d3f0830b2f4d28fa045da3eda

SHA512
83a9eec462247642a1209ff63c032ffb20304c834ef7d5d84b0ac2f4171ab9cb386fa4a914720cd7a26580753969884fac7c2e8abc3e0b736d3e7f1d3c5861c2

Download Submit