98857fa2b676372e9e53f83f20a81200f92e57237878d7161f8941f7f86b5c96

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 07:28

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General

Target

Uninstall.exe
Size

55KB
MD5

0739d2252c022416616933798df2eb3e
SHA1

a6a63e63efb5f0d80f434a4a414bb1cc0b83b7fd
SHA256

e47d8bd0c7cd9cd5b8978aee2622b9f3466c956ea9fc198a5d1b162a1b024ef0
SHA512

afd9bf8c9194905db3103f85d5b335825cdd59c3dfa965c70d0c574a73ac2cbb4d21fc30b24712011e9ec5442060c90d14e8c8a4b832115469699b3d9aaeab99
SSDEEP

768:z1cVhpQI2EQK0iPDh84nScF15GYbWjXO3XJqVkq3QcwRtG06ZoINKbBhW:xQpQ5EP0ijnRTXJqVkq3QRRDyoIsu

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1836	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
1836	Au_.exe
1836	Au_.exe
1836	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
behavioral18/files/0x000a000000023bb2-4.dat	nsis_installer_1
behavioral18/files/0x000a000000023bb2-4.dat	nsis_installer_2

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 1836	3640	Uninstall.exe	85
PID 3640 wrote to memory of 1836	3640	Uninstall.exe	85
PID 3640 wrote to memory of 1836	3640	Uninstall.exe	85

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3640
- 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:1836

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

C:\Users\Admin\AppData\Local\Temp\nslA327.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslA327.tmp\nsDialogs.dll

Filesize
9KB

MD5
c10e04dd4ad4277d5adc951bb331c777

SHA1
b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

SHA256
e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

SHA512
853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

Download Submit
C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
55KB

MD5
0739d2252c022416616933798df2eb3e

SHA1
a6a63e63efb5f0d80f434a4a414bb1cc0b83b7fd

SHA256
e47d8bd0c7cd9cd5b8978aee2622b9f3466c956ea9fc198a5d1b162a1b024ef0

SHA512
afd9bf8c9194905db3103f85d5b335825cdd59c3dfa965c70d0c574a73ac2cbb4d21fc30b24712011e9ec5442060c90d14e8c8a4b832115469699b3d9aaeab99

Download Submit