43849d9b4d7bae9d07c57883478f835b222db28a96c4daa33fd0578f9e8823d3

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24/07/2024, 00:05

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General

Target

Uninstall.exe
Size

87KB
MD5

495c607577b497723863687110dd0d8d
SHA1

5cbd8bfefafa0ab924d490458d45447706449261
SHA256

4c1b934d3c15b01d652f1ca09ac50208cbd87bd4b9191d555954820051425204
SHA512

72d42ce760e56fb520df19e8bad0ba1b975e192930f421b58abdbc66d19b3bf99fca431de0bed7dfe67134c6dd9bd75c35d510bc070cd3574215f7239cd6ce1c
SSDEEP

1536:lspe3RDckBV0DdkJOHR83d0cpdXwyNLIAW35pSkeVS9XaxIdPa6:la1DdkJoR85pdXnLIA8p3eVS9XT

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2696	Au_.exe

Loads dropped DLL 6 IoCs

pid	Process
1312	Uninstall.exe
2696	Au_.exe
2696	Au_.exe
2696	Au_.exe
2696	Au_.exe
2696	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/0x0005000000019bf2-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	Uninstall.exe	30
PID 1312 wrote to memory of 2696	1312	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:1312
- 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:2696

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\nstC350.tmp\ioSpecial.ini

Filesize
610B

MD5
b37662cfa1fc9ea8c90089f771fdd9f5

SHA1
53d6e14a0452de58dee82e5d67a1925e994fd4b9

SHA256
9cca209605577fa4630e7ad1c9286722b10e55e7646dc6634b06011a8d908d98

SHA512
ca5b0ad06c8dac43c5fac34fb66274e6d4826e99d038a31c94550b9fa7c71f56966a452144da98c58c9d07948201d48a19951e46c805a6e33bbe43440242e7a4

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\Users\Admin\AppData\Local\Temp\nstC350.tmp\InstallOptions.dll

Filesize
12KB

MD5
3c19f79ce11facc2fc4d3351dbb263e0

SHA1
17f4bf4b18ea7700f70ac7d825dc997be0d25f71

SHA256
cfaba712ad640ce2b4890005ffcf03ed9e2a18a6cf9075295f3aaea1478896b9

SHA512
05c9ac861e4fed610171fcb5fad40abc30cbf90e9c7cb13c758f52cdff568af0fdd6af968db4fb143a748c77f21c353c7cffea28cbcbd2ad17157038ab490273

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\Users\Admin\AppData\Local\Temp\nstC350.tmp\System.dll

Filesize
10KB

MD5
725145e8caa39635cab9899c47c72eda

SHA1
30478c907551bd920bf359638b091fc5c10b5a53

SHA256
1759e4f7777fb8c9ed356a7d4dc237a90e0760061685d44ea02d40ca9e359ceb

SHA512
de31286ea10321f762a3b6e7c6c82177d5b6f45a82adc936fcbbc23105708cbbbec903ba94ba94e7723e80f1828393e5395ef575b37136b19de7535e74e24547

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

Filesize
87KB

MD5
495c607577b497723863687110dd0d8d

SHA1
5cbd8bfefafa0ab924d490458d45447706449261

SHA256
4c1b934d3c15b01d652f1ca09ac50208cbd87bd4b9191d555954820051425204

SHA512
72d42ce760e56fb520df19e8bad0ba1b975e192930f421b58abdbc66d19b3bf99fca431de0bed7dfe67134c6dd9bd75c35d510bc070cd3574215f7239cd6ce1c

Download Submit