1c58bbe3dde2939b5eb3b8d983abec4ddc8774a21183353fc139a8b2f2b15ceb

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-07-2024 22:05

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General

Target

uninst.exe
Size

66KB
MD5

39fe05eb34815864ae2fefde3694fac8
SHA1

a82a249c22382f49687f4506aa83270414498bd2
SHA256

b0bf0d17491a0fc419eb0a9472977ed7a4d1b805606a309ded3e4ae577e8a5dc
SHA512

640aca4888bfb5006bdf8289796f0c46a9041aec5fd49127557a60d773fd752a7ad13af8b23597ad983db0036d58f958569f0ef65a47ad94afa43ad54a478c90
SSDEEP

1536:prSaWcSX1B2qV4k4PJU6XQcREYRNA3wrsyf9J:tSa+P4ZPJUvqCNyP

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1692	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
1704	uninst.exe
1692	Au_.exe
1692	Au_.exe
1692	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	uninst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral9/files/0x000500000001c806-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30
PID 1704 wrote to memory of 1692	1704	uninst.exe	30

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1704
- 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
  PID:1692

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
66KB

MD5
39fe05eb34815864ae2fefde3694fac8

SHA1
a82a249c22382f49687f4506aa83270414498bd2

SHA256
b0bf0d17491a0fc419eb0a9472977ed7a4d1b805606a309ded3e4ae577e8a5dc

SHA512
640aca4888bfb5006bdf8289796f0c46a9041aec5fd49127557a60d773fd752a7ad13af8b23597ad983db0036d58f958569f0ef65a47ad94afa43ad54a478c90

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