f64de4aee0bc21db63da573ccb97b7d9a8d1e8dfc29bef72d8c8f26c4ec640cc

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 03:49

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General

Target

uninst.exe
Size

54KB
MD5

a342294a98b10b59498e341cca199e3e
SHA1

d3c63b2b2c8aaac560d5751e2d9a6c9e6ccc608e
SHA256

8b4cea91b216c798bdc5ea0f3727ee04c722fdf426f0a2a1687b994f56cd7105
SHA512

aa5cd7564ae9d559a7aea10f55d99b914f2b109cad8abcf4940b2fee01536689893bcf73576e2d96515289782d8cda8ce1107c7f00b6fbee96604496b9e1813f
SSDEEP

1536:tzroWWblpNeL/FsNq1F4lPJB6cqAELVigmA:tz0WmlPw1F4lPJBoAI0m

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2060	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2060	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2204	uninst.exe
2060	Au_.exe
2060	Au_.exe
2060	Au_.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

NSIS installer 1 IoCs

installer

resource	yara_rule
behavioral25/files/0x000900000001225c-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28
PID 2204 wrote to memory of 2060	2204	uninst.exe	28

C:\Users\Admin\AppData\Local\Temp\uninst.exe
"C:\Users\Admin\AppData\Local\Temp\uninst.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- 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
  - Loads dropped DLL
  PID:2060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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
54KB

MD5
a342294a98b10b59498e341cca199e3e

SHA1
d3c63b2b2c8aaac560d5751e2d9a6c9e6ccc608e

SHA256
8b4cea91b216c798bdc5ea0f3727ee04c722fdf426f0a2a1687b994f56cd7105

SHA512
aa5cd7564ae9d559a7aea10f55d99b914f2b109cad8abcf4940b2fee01536689893bcf73576e2d96515289782d8cda8ce1107c7f00b6fbee96604496b9e1813f

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