d49877b56eae195a92a251b8a2323f9271c5d1258c8671d26e03ee44425c0478

Analysis

max time kernel
435s
max time network
488s
platform
windows11-21h2_x64
resource
win11-20240730-en
resource tags

arch:x64arch:x86image:win11-20240730-enlocale:en-usos:windows11-21h2-x64system
submitted
01-08-2024 20:53

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General

Target

uninstall.exe
Size

90KB
MD5

f5646188f5baf7bc59c700b7c01befa1
SHA1

5f5a3c36742a327e48d9f98f6438b20965ee84eb
SHA256

937e3c58a791330c0e035916a9966cfab6f5e9deee0d44be8d4e144073a77206
SHA512

285ef47515b49e235630df5d4f64fb6a394ffd4e285f2624a738d4d515ec9e85679834610d60e5a4c314124cf31bedfd41c685f8d19a690d13896a6dfb5564c7
SSDEEP

1536:GcVxMtkyfWqPG1QIcVdWToWw2hgHJlnqbl6W2adu7328M6huLeAyNsfBI:G4MrfWdbcDWToWNhOJlnqbl6W2aduz2E

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1356	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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 1356	1532	uninstall.exe	81
PID 1532 wrote to memory of 1356	1532	uninstall.exe	81
PID 1532 wrote to memory of 1356	1532	uninstall.exe	81

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:1532
- 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
  - System Location Discovery: System Language Discovery
  PID:1356

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\~nsuA.tmp\Un_A.exe

Filesize
90KB

MD5
f5646188f5baf7bc59c700b7c01befa1

SHA1
5f5a3c36742a327e48d9f98f6438b20965ee84eb

SHA256
937e3c58a791330c0e035916a9966cfab6f5e9deee0d44be8d4e144073a77206

SHA512
285ef47515b49e235630df5d4f64fb6a394ffd4e285f2624a738d4d515ec9e85679834610d60e5a4c314124cf31bedfd41c685f8d19a690d13896a6dfb5564c7

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