45b5b444fb9c51207474a3d3baa9062056ce5f44d4f092930fc68e06da6f8faa

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 03:27

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General

Target

Uninstall.exe
Size

89KB
MD5

9111cd15ae20e9466f9f849b7af57ca1
SHA1

416420588d49d2a12ad61b6bac94a22be1e1c7fb
SHA256

226324be5f0a18c000a6ee22f7083eb4997a10b5778e274fd86ed876e94ad8fd
SHA512

ffc4bbe5be308fa36a33678616025a6af3d7ae4b15eaa6991d082ba8d89a1fb5c39bd961f776aff532f2aec88238b699eea20dfa1132a5ce80da32f3613f0b48
SSDEEP

1536:sUqBWUSFNrdN90DukJrXVXmXeUv+yLPrulXytFDOpFAM:PGW3B+DukJrF2OorLDulibE

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3008	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2088	Uninstall.exe
3008	Au_.exe
3008	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 1 IoCs

installer

resource	yara_rule
behavioral13/files/0x000500000001a4d1-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3008	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 3008	2088	Uninstall.exe	30
PID 2088 wrote to memory of 3008	2088	Uninstall.exe	30
PID 2088 wrote to memory of 3008	2088	Uninstall.exe	30
PID 2088 wrote to memory of 3008	2088	Uninstall.exe	30

C:\Users\Admin\AppData\Local\Temp\Uninstall.exe
"C:\Users\Admin\AppData\Local\Temp\Uninstall.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088
- 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:3008

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\nsjB868.tmp\ioSpecial.ini

Filesize
595B

MD5
2f72f1847b836c4ecfa1a715a3a728b8

SHA1
e50bffb4ff922fb0f5a7ec710141083e7411649c

SHA256
c924f8fdde650abafed131662133b3fc4142ba0d9757bef992f0bb8b6867eedf

SHA512
64f464ffa8e7eaa47706e5e62d1a152809ec3a70910c60fb2100de693ca7fb3d03533a22283f9aa8614e94cba2845c56ba37716cd795a1ad4e3dfb2b21474fcf

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C:\Users\Admin\AppData\Local\Temp\nsjB868.tmp\ioSpecial.ini

Filesize
608B

MD5
249d4aa8a8c5f472a2fec2cb3ddef7e3

SHA1
99f395d9316fd7ff43d31a7026386910892c2556

SHA256
02823473d969e5466a0aae096b14d9f866892817a81fab5b7bb6913fd67de843

SHA512
026f6f1e81bf13bc720fa9ecd6b708932c9ad1cbbde91d048b926adfabb2d4a5b87367dfc9d27366799b83f12e49c0791342366f6d4f913d58144dd876cf2a74

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\Users\Admin\AppData\Local\Temp\nsjB868.tmp\InstallOptions.dll

Filesize
12KB

MD5
29459d9ee2bce32ed937fb1f965f9d5e

SHA1
8fff45ed45f3af8f8c248eba9a1c02c9c5fc911d

SHA256
ad07968b7d93ef19e10e1deb52e0c912e96dde30c0a49a0239daf176fd4c9ef5

SHA512
d4ef4eadb0f53e7086a1d242bf7f745ad79d83d9ecbfaa283cf0dd499271a804589a575040bb20d5c98e86197cc65ca05ab1a358c556ea82a3e297d0255015a6

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\Users\Admin\AppData\Local\Temp\nsjB868.tmp\System.dll

Filesize
10KB

MD5
05e52213cfa17dee760186462a9645ed

SHA1
f6d5e82080bbba65db7d54e89250c95af833aae3

SHA256
d9d3ffa4c7d7a152f435f4777e72aa1b6a6c0555f277e59eedebc587c3b66ba5

SHA512
586eea0bec6345b437667ce528bc2396427dd444a396456e38046a8962e92a52e7ee62b9f6c97f41bc1fb4a1b3905a302d6f7055e26b84e60709ba3b416ad172

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

Filesize
89KB

MD5
9111cd15ae20e9466f9f849b7af57ca1

SHA1
416420588d49d2a12ad61b6bac94a22be1e1c7fb

SHA256
226324be5f0a18c000a6ee22f7083eb4997a10b5778e274fd86ed876e94ad8fd

SHA512
ffc4bbe5be308fa36a33678616025a6af3d7ae4b15eaa6991d082ba8d89a1fb5c39bd961f776aff532f2aec88238b699eea20dfa1132a5ce80da32f3613f0b48

Download Submit