ed02ac429db2a8e556c8edd22d575ae4caae45719df16dce9b2026205572a426

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-11-2024 07:12

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General

Target

$R0/Uninstall DocuAppCenter.exe
Size

220KB
MD5

3fe065f3111d58d008fb8eb403a11a7c
SHA1

74ee9374e92cec677f39326d58b5f740b438cf10
SHA256

3866f85e7e0524bc2b5b43315da8e721b0e031ece4462329cab4892756abcebf
SHA512

e314110fba7203dca4ca71e75330c578889e3a01288be0dc1b04eba311b231199ffbe89a4cbbe58531b52c042b801dcb12fbe9e9f19e1427228007dfd6cd7ee7
SSDEEP

3072:4n77v00hEoDEtauQWj1OVsXkZy9aH2tvhOEA1RJCir86SrSrv6Ia3r:4740Itj1q/8s2t0EyL+yab

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
4032	Un_A.exe

Loads dropped DLL 6 IoCs

pid	Process
4032	Un_A.exe
4032	Un_A.exe
4032	Un_A.exe
4032	Un_A.exe
4032	Un_A.exe
4032	Un_A.exe

Enumerates processes with tasklist 1 TTPs 1 IoCs

discovery

Process Discovery

T1057

pid	Process
4708	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 DocuAppCenter.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
4032	Un_A.exe
4032	Un_A.exe
4708	tasklist.exe
4708	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4708	tasklist.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 4032	2568	Uninstall DocuAppCenter.exe	86
PID 2568 wrote to memory of 4032	2568	Uninstall DocuAppCenter.exe	86
PID 2568 wrote to memory of 4032	2568	Uninstall DocuAppCenter.exe	86
PID 4032 wrote to memory of 1856	4032	Un_A.exe	95
PID 4032 wrote to memory of 1856	4032	Un_A.exe	95
PID 4032 wrote to memory of 1856	4032	Un_A.exe	95
PID 1856 wrote to memory of 4708	1856	cmd.exe	97
PID 1856 wrote to memory of 4708	1856	cmd.exe	97
PID 1856 wrote to memory of 4708	1856	cmd.exe	97
PID 1856 wrote to memory of 2852	1856	cmd.exe	98
PID 1856 wrote to memory of 2852	1856	cmd.exe	98
PID 1856 wrote to memory of 2852	1856	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall DocuAppCenter.exe
"C:\Users\Admin\AppData\Local\Temp\$R0\Uninstall DocuAppCenter.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- 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:4032
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c tasklist /FI "USERNAME eq %USERNAME%" /FI "IMAGENAME eq DocuAppCenter.exe" /FO csv | "C:\Windows\system32\find.exe" "DocuAppCenter.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - C:\Windows\SysWOW64\tasklist.exe
      tasklist /FI "USERNAME eq Admin" /FI "IMAGENAME eq DocuAppCenter.exe" /FO csv
      4⤵
      Enumerates processes with tasklist
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4708
  - - C:\Windows\SysWOW64\find.exe
      "C:\Windows\system32\find.exe" "DocuAppCenter.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2852

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\nssD831.tmp\StdUtils.dll

Filesize
100KB

MD5
c6a6e03f77c313b267498515488c5740

SHA1
3d49fc2784b9450962ed6b82b46e9c3c957d7c15

SHA256
b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

SHA512
9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

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C:\Users\Admin\AppData\Local\Temp\nssD831.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

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C:\Users\Admin\AppData\Local\Temp\nssD831.tmp\WinShell.dll

Filesize
3KB

MD5
1cc7c37b7e0c8cd8bf04b6cc283e1e56

SHA1
0b9519763be6625bd5abce175dcc59c96d100d4c

SHA256
9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

SHA512
7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

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C:\Users\Admin\AppData\Local\Temp\nssD831.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
220KB

MD5
3fe065f3111d58d008fb8eb403a11a7c

SHA1
74ee9374e92cec677f39326d58b5f740b438cf10

SHA256
3866f85e7e0524bc2b5b43315da8e721b0e031ece4462329cab4892756abcebf

SHA512
e314110fba7203dca4ca71e75330c578889e3a01288be0dc1b04eba311b231199ffbe89a4cbbe58531b52c042b801dcb12fbe9e9f19e1427228007dfd6cd7ee7

Download Submit