7147afef3ab39fcd00054ae2877f5235e970c1f63c6be2cde399236ec0b0963b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 08:49

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General

Target

Uninstall.exe
Size

49KB
MD5

cc6d6711ada7155c539b388dd90cb042
SHA1

bfc3d693f154e80288e38b5c7078886e2957c9f2
SHA256

eb3f7fd41a7651a3f3d184f3300a9d80f2ed373650806af2ef291ee614b3fab1
SHA512

e288ecb8f220254b1c2efe254b86cfbc6f528dfd741722bcf2cd7b586566f89f6edda5ae13374906202832e2db9b27eb948a5dc294bb614325144c232e759a74
SSDEEP

768:+/UpAHiGjRQ1kkjH918xnyzOp7OssT1pF/O71mJ/Mgd2iZQAm6kRRS+NoJRnKeY/:qUeHiWRgkkjH8nyWmJUgdLeAyN9J

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2344	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2084	Uninstall.exe
2344	Au_.exe
2344	Au_.exe
2344	Au_.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	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral7/files/0x000600000001924c-2.dat	nsis_installer_1
behavioral7/files/0x000600000001924c-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2344	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31
PID 2084 wrote to memory of 2344	2084	Uninstall.exe	31

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
  "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2344

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

\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
49KB

MD5
cc6d6711ada7155c539b388dd90cb042

SHA1
bfc3d693f154e80288e38b5c7078886e2957c9f2

SHA256
eb3f7fd41a7651a3f3d184f3300a9d80f2ed373650806af2ef291ee614b3fab1

SHA512
e288ecb8f220254b1c2efe254b86cfbc6f528dfd741722bcf2cd7b586566f89f6edda5ae13374906202832e2db9b27eb948a5dc294bb614325144c232e759a74

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