c1768c1f6a1714caa425c24609a97ff7d94b8b211c4814adb6205e39dbfd432b

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 22:25

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General

Target

Uninstall.exe
Size

87KB
MD5

ef7a82bef192f8f54f697b75445b87d2
SHA1

6558607a2e92c6853467349bd267354aa304ff89
SHA256

9f500ef7aca53d6382bfb2ca454c94455aadac07d8e17fb7ba8737cc95c3b6ce
SHA512

62a86ae342d91d7d97d62b7f094d368ee40a5e1b290d559836bcdff7677aa6957cc58091c8e7b6522aa8881dec389c9eb28ea6ef54a2d42dd7f1ac97d79db5e2
SSDEEP

1536:wspe3RDckBV0DdkJOHR83d0cpdXwyNLIAW35pSkeVS9XaxIdPa6:wa1DdkJoR85pdXnLIA8p3eVS9XT

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2444	Au_.exe

Loads dropped DLL 6 IoCs

pid	Process
2556	Uninstall.exe
2444	Au_.exe
2444	Au_.exe
2444	Au_.exe
2444	Au_.exe
2444	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/0x0005000000019412-2.dat	nsis_installer_1

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2444	Au_.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	Uninstall.exe	30
PID 2556 wrote to memory of 2444	2556	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:2556
- 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:2444

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\nst7ACC.tmp\ioSpecial.ini

Filesize
610B

MD5
9d981a3e1a5cb9696dcdbd1b1d220b20

SHA1
b36b923a9e378e9df186449d63d8856595ff735c

SHA256
edf8e2bfa631232c99e823c414c87b6d3c62f50dcd919a937251896a736b4dde

SHA512
08fed7bc6b7ad92b626640226287c8a2ddac3e97f9eeaaff841810db85df3c4fe9e31393a24e924e015fe61071c5be4da6cfb22d3810800e8366934d3294abc9

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\Users\Admin\AppData\Local\Temp\nst7ACC.tmp\InstallOptions.dll

Filesize
12KB

MD5
3c19f79ce11facc2fc4d3351dbb263e0

SHA1
17f4bf4b18ea7700f70ac7d825dc997be0d25f71

SHA256
cfaba712ad640ce2b4890005ffcf03ed9e2a18a6cf9075295f3aaea1478896b9

SHA512
05c9ac861e4fed610171fcb5fad40abc30cbf90e9c7cb13c758f52cdff568af0fdd6af968db4fb143a748c77f21c353c7cffea28cbcbd2ad17157038ab490273

Download Submit
\Users\Admin\AppData\Local\Temp\nst7ACC.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
ef7a82bef192f8f54f697b75445b87d2

SHA1
6558607a2e92c6853467349bd267354aa304ff89

SHA256
9f500ef7aca53d6382bfb2ca454c94455aadac07d8e17fb7ba8737cc95c3b6ce

SHA512
62a86ae342d91d7d97d62b7f094d368ee40a5e1b290d559836bcdff7677aa6957cc58091c8e7b6522aa8881dec389c9eb28ea6ef54a2d42dd7f1ac97d79db5e2

Download Submit