c3333af1dad74b477b503c55832654b89f5fddd5e7ea28418224915c021175e0

Analysis

max time kernel
100s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/09/2024, 20:58

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General

Target

Uninstaller.exe
Size

305KB
MD5

5720fbc0b3c3205c8cf3169f980d67cc
SHA1

3c4fc259ec1d8639ededf8fecb42e2102b0d9494
SHA256

0742bc98df75f443c6a436ad9385a8a3bd8f123d42277a72ab30ae1fee1da64f
SHA512

3f2e95c271483fe3291456550526121fdc10ca303a32b328d74cf30d19406e3ea61ba718c2fcfbf811d219e4d51f73327c35600cd35c0ddf452d564c7b73d043
SSDEEP

6144:IQ3K5EnM3DoFFjuvf/toNQ8dqLuJoU0U7Hd8CntQOHHM+HFFTjXdpNnT2D:M6nM3D0Fw/tN8dkmLtpHHHrh7m

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2744	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2100	Uninstaller.exe
2744	Au_.exe
2744	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	Uninstaller.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Au_.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
behavioral11/files/0x00080000000173f1-2.dat	nsis_installer_1
behavioral11/files/0x00080000000173f1-2.dat	nsis_installer_2

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2744	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2744	2100	Uninstaller.exe	31
PID 2100 wrote to memory of 2744	2100	Uninstaller.exe	31
PID 2100 wrote to memory of 2744	2100	Uninstaller.exe	31
PID 2100 wrote to memory of 2744	2100	Uninstaller.exe	31

C:\Users\Admin\AppData\Local\Temp\Uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstaller.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2100
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2744

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\nstEDF8.tmp\System.dll

Filesize
10KB

MD5
7fbda5b7be6256996d4e59e5f6949918

SHA1
2d36c0e0bfbe450675c6ed044e715abaa85a252a

SHA256
9bb31f7f02231e3166bf52385d804c06da9740e9c6f0bda807b01052ae9fdcd4

SHA512
bc0d36aa6f50041bad05cf48d909ed5a387bff5b111f657591161a288c1be5c20b8c5d69e557b5ea395726d91601b9e6303da81555e053090cfcbf5d44be7f82

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\Users\Admin\AppData\Local\Temp\nstEDF8.tmp\nsDialogs.dll

Filesize
9KB

MD5
ef2ba370973a3f8aba1533cb3858921b

SHA1
c2211408f29a46fc26198cddf411694c0e7e0eb8

SHA256
ed575c8bddf21cc6d689646ecfdeafe356e0f9945a282eda79f3b636b77a4453

SHA512
07aac20904fb164ba91b7c619b674d5e0f4d1ec8ba03fbd7e123ef53ff4b134278e01964fb81dfcc2905b760c572a7e13c87114bdb279f1d26632ebe71c628ba

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\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

Filesize
305KB

MD5
5720fbc0b3c3205c8cf3169f980d67cc

SHA1
3c4fc259ec1d8639ededf8fecb42e2102b0d9494

SHA256
0742bc98df75f443c6a436ad9385a8a3bd8f123d42277a72ab30ae1fee1da64f

SHA512
3f2e95c271483fe3291456550526121fdc10ca303a32b328d74cf30d19406e3ea61ba718c2fcfbf811d219e4d51f73327c35600cd35c0ddf452d564c7b73d043

Download Submit