167e69ad30fc65bd1f671655bb9d7b65f4576d6ac250424c27d0cb0be623d1a1

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 19:26

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General

Target

Uninstall.exe
Size

87KB
MD5

8df58f296e0b1a3d0e69fd804ef44c81
SHA1

ee37897fb20df46e6a9aba42976edab2dcd1a6b3
SHA256

727efe8953380a29b8837878bcb6a6e18c9702810914032808bc1d59f65c090d
SHA512

0e65753417725a785c5d591fa4eec797f9ca6b1f55d0d8f9103ed4bdc5e33f0a34246cd025708f550f018958b0a40d70093b5b64aa566082b6e4ff624eab049e
SSDEEP

1536:Tspe3RDckBV0DdkJOHR83d0cpdXwyNLIAW35pSkeVS9XaxIdPa6:Ta1DdkJoR85pdXnLIA8p3eVS9XT

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2540	Au_.exe

Loads dropped DLL 6 IoCs

pid	Process
2236	Uninstall.exe
2540	Au_.exe
2540	Au_.exe
2540	Au_.exe
2540	Au_.exe
2540	Au_.exe

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
behavioral19/files/0x00050000000194b4-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2540	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	Uninstall.exe	30
PID 2236 wrote to memory of 2540	2236	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:2236
- 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:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\nsoCC07.tmp\ioSpecial.ini

Filesize
610B

MD5
642f3ea0f2c827f3e36f284b15b36da1

SHA1
2d9ac8cab8d0f5d46bbc4652d39c78a4ddd4dde3

SHA256
54c14d6164e85f422f51e26f470bfa7e9522456e6e44cab977be75449881ae93

SHA512
a85bbb14e8cdd51703ff214738a5db8dc5197e87fa2c18d8503daffa71a43aa6a6bd09dc48d702c218b09230b74fa59678514b777306f780ce5fbd8fc7a39e3b

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\Users\Admin\AppData\Local\Temp\nsoCC07.tmp\InstallOptions.dll

Filesize
12KB

MD5
3c19f79ce11facc2fc4d3351dbb263e0

SHA1
17f4bf4b18ea7700f70ac7d825dc997be0d25f71

SHA256
cfaba712ad640ce2b4890005ffcf03ed9e2a18a6cf9075295f3aaea1478896b9

SHA512
05c9ac861e4fed610171fcb5fad40abc30cbf90e9c7cb13c758f52cdff568af0fdd6af968db4fb143a748c77f21c353c7cffea28cbcbd2ad17157038ab490273

Download Submit
\Users\Admin\AppData\Local\Temp\nsoCC07.tmp\System.dll

Filesize
10KB

MD5
725145e8caa39635cab9899c47c72eda

SHA1
30478c907551bd920bf359638b091fc5c10b5a53

SHA256
1759e4f7777fb8c9ed356a7d4dc237a90e0760061685d44ea02d40ca9e359ceb

SHA512
de31286ea10321f762a3b6e7c6c82177d5b6f45a82adc936fcbbc23105708cbbbec903ba94ba94e7723e80f1828393e5395ef575b37136b19de7535e74e24547

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

Filesize
87KB

MD5
8df58f296e0b1a3d0e69fd804ef44c81

SHA1
ee37897fb20df46e6a9aba42976edab2dcd1a6b3

SHA256
727efe8953380a29b8837878bcb6a6e18c9702810914032808bc1d59f65c090d

SHA512
0e65753417725a785c5d591fa4eec797f9ca6b1f55d0d8f9103ed4bdc5e33f0a34246cd025708f550f018958b0a40d70093b5b64aa566082b6e4ff624eab049e

Download Submit