066baa2c21f69128f80d5b6eac2dce4579259451bc5ec1ce072fce7636cb0952

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 04:10

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General

Target

uninst.exe
Size

133KB
MD5

8f3d70d2f823bc912c4bd89fef50ec8b
SHA1

5037d4c86e17c43d7a0091186fac1eb215aab410
SHA256

f88400cfd615d394bd230f9825f3d844d7477825c934506ff7c436c188bcde4a
SHA512

c3b8c326e88a76c24bcc71a02167e58689184e57a9d7fd605d715666d9cd0bd2dd8cd0dbd1622514acf47b831ed575dbcef015013c3b1f11563dcc86c3a0f5bd
SSDEEP

3072:biezvrL9oMXJAy6ppppppdddddi5o7nD61RYBc:bNvTOy6ppppppdddddi5oXc

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1204	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
1204	Au_.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	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 3 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	ClearOptions.exe
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
behavioral19/files/0x0005000000019439-2.dat	nsis_installer_1
behavioral19/files/0x0005000000019439-2.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 1204	1976	uninst.exe	30
PID 1976 wrote to memory of 1204	1976	uninst.exe	30
PID 1976 wrote to memory of 1204	1976	uninst.exe	30
PID 1976 wrote to memory of 1204	1976	uninst.exe	30
PID 1204 wrote to memory of 2236	1204	Au_.exe	31
PID 1204 wrote to memory of 2236	1204	Au_.exe	31
PID 1204 wrote to memory of 2236	1204	Au_.exe	31
PID 1204 wrote to memory of 2236	1204	Au_.exe	31

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:1976
- 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⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Users\Admin\AppData\Local\Temp\ClearOptions.exe
    C:\Users\Admin\AppData\Local\Temp\ClearOptions.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2236

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
133KB

MD5
8f3d70d2f823bc912c4bd89fef50ec8b

SHA1
5037d4c86e17c43d7a0091186fac1eb215aab410

SHA256
f88400cfd615d394bd230f9825f3d844d7477825c934506ff7c436c188bcde4a

SHA512
c3b8c326e88a76c24bcc71a02167e58689184e57a9d7fd605d715666d9cd0bd2dd8cd0dbd1622514acf47b831ed575dbcef015013c3b1f11563dcc86c3a0f5bd

Download Submit
memory/2236-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

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