1a3f8a24ab6611410845314c2dbec7cbd80df2d74a34657296ce646fcbc42415

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 15:00

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General

Target

uninst.exe
Size

36KB
MD5

8420438e419d653f911f16abfd26c9ed
SHA1

d39750d6ceb780df4ea984d9645b2f9e94b80329
SHA256

77a417460ee0c8c5bc65188ea2b0fa4ca9b2d2d6c94daa0ea206ea909e7d929a
SHA512

c1ef2f814e7095d6c36986239441b4f0e91922ca70ddb64e857f267b84359117d6cbb426a30582e5ef0bc8e6bcd5a7787cee6200d9cfa10111b7000cd7e15a68
SSDEEP

768:51DVgVapclBrPlbLQPCGB4/deAC6Jn7z8Ld8tx8wxp4wFBOV1mJHbaQ8b:fDV6awBrdbLkrude7mnflp4tmJHmT

Score

7^/10

discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2704	Au_.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	Au_.exe

Loads dropped DLL 4 IoCs

pid	Process
2792	uninst.exe
2704	Au_.exe
2704	Au_.exe
2704	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
behavioral7/files/0x0005000000019227-2.dat	nsis_installer_1

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	uninst.exe	30
PID 2792 wrote to memory of 2704	2792	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:2792
- 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
  - System Location Discovery: System Language Discovery
  PID:2704

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
36KB

MD5
8420438e419d653f911f16abfd26c9ed

SHA1
d39750d6ceb780df4ea984d9645b2f9e94b80329

SHA256
77a417460ee0c8c5bc65188ea2b0fa4ca9b2d2d6c94daa0ea206ea909e7d929a

SHA512
c1ef2f814e7095d6c36986239441b4f0e91922ca70ddb64e857f267b84359117d6cbb426a30582e5ef0bc8e6bcd5a7787cee6200d9cfa10111b7000cd7e15a68

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