47779802943893d932dc3245c79f7bb9669a41d83d2fc2b194d5dd6331b8fdd7

Analysis

max time kernel
134s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2025 17:44

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General

Target

uninstall.exe
Size

75KB
MD5

fb9cafa3e53dc25ac59c6b6b71106ab4
SHA1

d80f90cdf166b41c01c6df2a8eca701a41be0e83
SHA256

7d4515cf9d6fc26d424a945afabf8ecd291b9ea550e3e8924e01d15c078d9dc9
SHA512

d9ef16374ca10a76fc2c5e0faaeb3229f2b6c2720431b704a859839f7898d48b1c71cf0472a919158e1a80e5a61710fe1afbd88c33f49a01b56b19a60f81ff1e
SSDEEP

1536:tmsAYBdTU9fEAIS2PEtuOgdLeAyNxm+ZBb6kZANHzxFobK0qE6qwbV:sfY/TU9fE9PEtuOceAn8rUzxFobK016x

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4668	Un_A.exe

Executes dropped EXE 1 IoCs

pid	Process
4668	Un_A.exe

Loads dropped DLL 3 IoCs

pid	Process
4668	Un_A.exe
4668	Un_A.exe
4668	Un_A.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 2 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.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Un_A.exe

Modifies registry class 14 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.azw\	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.fb2	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.cbz\	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.pdf	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.epub	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.epub\	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.azw3\	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.pdf\	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.fb2\	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.cbz	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.azw	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.azw3	Un_A.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.mobi	Un_A.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\.mobi\	Un_A.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4668	Un_A.exe
4668	Un_A.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 4668	2396	uninstall.exe	82
PID 2396 wrote to memory of 4668	2396	uninstall.exe	82
PID 2396 wrote to memory of 4668	2396	uninstall.exe	82

C:\Users\Admin\AppData\Local\Temp\uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:4668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\nse78AC.tmp\LangDLL.dll

Filesize
5KB

MD5
68b287f4067ba013e34a1339afdb1ea8

SHA1
45ad585b3cc8e5a6af7b68f5d8269c97992130b3

SHA256
18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

SHA512
06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse78AC.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
C:\Users\Admin\AppData\Local\Temp\nse78AC.tmp\nsis_tauri_utils.dll

Filesize
29KB

MD5
c5bd51b72a0de24a183585da36a160c7

SHA1
f99a50209a345185a84d34d0e5f66d04c75ff52f

SHA256
5ef1f010f9a8be4ffe0913616f6c54acf403ee0b83d994821ae4b6716ec1d266

SHA512
1349027b08c7f82e17f572e035f224a46f33f0a410526cf471b22a74b7904b54d1befb5ea7f23c90079605d4663f1207b8c81a45e218801533d48b6602a93dbc

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

Filesize
75KB

MD5
fb9cafa3e53dc25ac59c6b6b71106ab4

SHA1
d80f90cdf166b41c01c6df2a8eca701a41be0e83

SHA256
7d4515cf9d6fc26d424a945afabf8ecd291b9ea550e3e8924e01d15c078d9dc9

SHA512
d9ef16374ca10a76fc2c5e0faaeb3229f2b6c2720431b704a859839f7898d48b1c71cf0472a919158e1a80e5a61710fe1afbd88c33f49a01b56b19a60f81ff1e

Download Submit