931c62c979203129aa06a9bdb2b4cfd49442af20e156890ed570b498c4ba011e

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/09/2024, 16:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
2772	Au_.exe

Loads dropped DLL 3 IoCs

pid	Process
2700	Uninstall.exe
2772	Au_.exe
2772	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/0x0005000000019c59-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2772	Au_.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2772	2700	Uninstall.exe	31
PID 2700 wrote to memory of 2772	2700	Uninstall.exe	31
PID 2700 wrote to memory of 2772	2700	Uninstall.exe	31
PID 2700 wrote to memory of 2772	2700	Uninstall.exe	31

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:2700
- 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:2772

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsyEBA7.tmp\ioSpecial.ini

Filesize
595B

MD5
871d597e1d145fde9241c9bad091fd0e

SHA1
377ae6e9fc1f89a7dc113fe3930a7d3cbdd3dda5

SHA256
44bb1b99655a5b4a05ccd7376d5db6e8e9b00e04ee62cdcea44b83a1368d8655

SHA512
8cc9a976005c9248211a8242d375efeb59065ed0acbe2d712c090f8d599bb86b4942b0d06d5761cacbfce8527c1cd6cd54cf0c5919b8073812c770ea98ef8270

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsyEBA7.tmp\ioSpecial.ini

Filesize
634B

MD5
a0bff8f775e60a93ab5e2808c37a85a0

SHA1
053a494445badf46f0f80f45a73704450558ba91

SHA256
b00e50821b07e4345cf998d336e563e8254a0fad1386a3bd8df73faabf55127a

SHA512
8ba4fe18120c8af1eab6803a0b35ffde9d0cd15a60f59b7fe4ca69f2382e771a790d7d6974d686cdf9df4afc9cbcd0e9d562cf96ad8ed93628b4797b01678d1d

Download Submit
\Users\Admin\AppData\Local\Temp\nsyEBA7.tmp\InstallOptions.dll

Filesize
12KB

MD5
29459d9ee2bce32ed937fb1f965f9d5e

SHA1
8fff45ed45f3af8f8c248eba9a1c02c9c5fc911d

SHA256
ad07968b7d93ef19e10e1deb52e0c912e96dde30c0a49a0239daf176fd4c9ef5

SHA512
d4ef4eadb0f53e7086a1d242bf7f745ad79d83d9ecbfaa283cf0dd499271a804589a575040bb20d5c98e86197cc65ca05ab1a358c556ea82a3e297d0255015a6

Download Submit
\Users\Admin\AppData\Local\Temp\nsyEBA7.tmp\System.dll

Filesize
10KB

MD5
05e52213cfa17dee760186462a9645ed

SHA1
f6d5e82080bbba65db7d54e89250c95af833aae3

SHA256
d9d3ffa4c7d7a152f435f4777e72aa1b6a6c0555f277e59eedebc587c3b66ba5

SHA512
586eea0bec6345b437667ce528bc2396427dd444a396456e38046a8962e92a52e7ee62b9f6c97f41bc1fb4a1b3905a302d6f7055e26b84e60709ba3b416ad172

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

Filesize
89KB

MD5
9111cd15ae20e9466f9f849b7af57ca1

SHA1
416420588d49d2a12ad61b6bac94a22be1e1c7fb

SHA256
226324be5f0a18c000a6ee22f7083eb4997a10b5778e274fd86ed876e94ad8fd

SHA512
ffc4bbe5be308fa36a33678616025a6af3d7ae4b15eaa6991d082ba8d89a1fb5c39bd961f776aff532f2aec88238b699eea20dfa1132a5ce80da32f3613f0b48

Download Submit