f655576465177916f3f010f439dbfd092ae31c0bbe851e6fa83b8bdb6716f16d

Analysis

max time kernel
1s
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 05:21

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General

Target

uninstall.exe
Size

74KB
MD5

5c06c94b194eea30ab7a357f1173488e
SHA1

c7df3fab5e03f972133e6a5c8bd8d5107f79f886
SHA256

5e5f94e8211738adebcf5f837c83217b67102bd4112b3ee9c79d6bc6a01dd099
SHA512

15ca1f9bcea4fbf815f75af50797940f30f733854be00ca460fa20914c694de41b25f9f0d7a0cf4446093579ea162447b50739ea1150465391e893f9ba96dd78
SSDEEP

1536:XmsAYBdTU9fEAIS2PEtuugdLeAyNxWaAepkr+Sxor3hSSXmfsjpn23w:WfY/TU9fE9PEtuuceAXa+szZXLIg

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
576	Un_A.exe

Loads dropped DLL 2 IoCs

pid	Process
576	Un_A.exe
576	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	Un_A.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uninstall.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 576	956	uninstall.exe	82
PID 956 wrote to memory of 576	956	uninstall.exe	82
PID 956 wrote to memory of 576	956	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:956
- 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
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:576

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\nsc8B0C.tmp\LangDLL.dll

Filesize
5KB

MD5
68b287f4067ba013e34a1339afdb1ea8

SHA1
45ad585b3cc8e5a6af7b68f5d8269c97992130b3

SHA256
18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

SHA512
06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsc8B0C.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

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

Filesize
74KB

MD5
5c06c94b194eea30ab7a357f1173488e

SHA1
c7df3fab5e03f972133e6a5c8bd8d5107f79f886

SHA256
5e5f94e8211738adebcf5f837c83217b67102bd4112b3ee9c79d6bc6a01dd099

SHA512
15ca1f9bcea4fbf815f75af50797940f30f733854be00ca460fa20914c694de41b25f9f0d7a0cf4446093579ea162447b50739ea1150465391e893f9ba96dd78

Download Submit