b86a36090347d295298955a7bf2a99a7242a69dcc36edbd3e85b72c6eb6d0e71

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 20:45

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General

Target

$PROGRAMFILES/1ClickDownload/$PROGRAMFILES/1ClickDownload/uninst.exe
Size

46KB
MD5

7f731258cc0237bf3a7a864a4c2f8c44
SHA1

0ee075a6edb910bedcaada45b4e68df778ba96de
SHA256

af31fddfdf61a27a813e712d6b990a4ef5388a755cf166e0542ccc49c7a28a95
SHA512

2363f31ecc88fc86039b051ae19dff6fd30e1379d7a1c1109190f9c4881f25e14a3dd0e7a0442a9416c45dd4113a555349e0a7e86ffe8aace0c6c096c47dbd27
SSDEEP

768:+4wO7XBz+5Qm3W0tYdrQZHV4EWuWEUOg4jjfS3XJugd2iZQAm6kRRS+NoJRnMtAy:xLXB65939tY6HBg4sXJugdLeAyNDtT

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1252	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	uninst.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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral15/files/0x0005000000019947-2.dat	nsis_installer_1
behavioral15/files/0x0005000000019947-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 1252	2384	uninst.exe	31
PID 2384 wrote to memory of 1252	2384	uninst.exe	31
PID 2384 wrote to memory of 1252	2384	uninst.exe	31
PID 2384 wrote to memory of 1252	2384	uninst.exe	31

C:\Users\Admin\AppData\Local\Temp\$PROGRAMFILES\1ClickDownload\$PROGRAMFILES\1ClickDownload\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\$PROGRAMFILES\1ClickDownload\$PROGRAMFILES\1ClickDownload\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- 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\$PROGRAMFILES\1ClickDownload\$PROGRAMFILES\1ClickDownload\
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1252

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
46KB

MD5
7f731258cc0237bf3a7a864a4c2f8c44

SHA1
0ee075a6edb910bedcaada45b4e68df778ba96de

SHA256
af31fddfdf61a27a813e712d6b990a4ef5388a755cf166e0542ccc49c7a28a95

SHA512
2363f31ecc88fc86039b051ae19dff6fd30e1379d7a1c1109190f9c4881f25e14a3dd0e7a0442a9416c45dd4113a555349e0a7e86ffe8aace0c6c096c47dbd27

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