25fd8b9e0f54bc1673e4d1d9be3f5abfe926c5fb4492593c4834fa1a691f0fd0

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 22:54

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General

Target

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

46KB
MD5

317fc44ca2e193736acf364eba3f0306
SHA1

c30a4abb75fb32f11736da89bcdee426a93078a4
SHA256

525d371a299498176497f66ea5a8b362f96977a1197d3b263c1caf9d4ba30a3a
SHA512

9c623cfd03f0a8af5520453ef8bae321d765c252f3145f95a39607e89976a6245c384326442fcc07f79c6a76195b9a12feeffd647a7c7c4dfd71975f6bda5e3c
SSDEEP

768:/4wO7XBz+5Qm3W0tYdrQZHV4EWuWEUOg4jjfS3XJ6gd2iZQAm6kRRS+NoJRnMtAm:gLXB65939tY6HBg4sXJ6gdLeAyNDtf

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2396	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	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/0x000500000001926a-2.dat	nsis_installer_1
behavioral15/files/0x000500000001926a-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2396	2524	uninst.exe	30
PID 2524 wrote to memory of 2396	2524	uninst.exe	30
PID 2524 wrote to memory of 2396	2524	uninst.exe	30
PID 2524 wrote to memory of 2396	2524	uninst.exe	30

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:2524
- 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:2396

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
317fc44ca2e193736acf364eba3f0306

SHA1
c30a4abb75fb32f11736da89bcdee426a93078a4

SHA256
525d371a299498176497f66ea5a8b362f96977a1197d3b263c1caf9d4ba30a3a

SHA512
9c623cfd03f0a8af5520453ef8bae321d765c252f3145f95a39607e89976a6245c384326442fcc07f79c6a76195b9a12feeffd647a7c7c4dfd71975f6bda5e3c

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