0a1fe129f4d95b580c7533d0d7b0b787174b41d6dacf222956aba9586232445e

Analysis

max time kernel
91s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
07/02/2023, 16:48

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General

Target

Google Chrome.exe
Size

172KB
MD5

5ee4572308895a3322f74160399e0e63
SHA1

0e511a972055cc02c278b30b874a0dbb032f0cb1
SHA256

0a1fe129f4d95b580c7533d0d7b0b787174b41d6dacf222956aba9586232445e
SHA512

0b5f4d8d5a8504b3080e0204577faa3c6ae042677718d1bc05edac62702f1380025a2a11f884554d78224b0e8ef6028deac3c1a37998c17cff1184254354a002
SSDEEP

3072:eXhaoP7Ddc4kJ5sXegDChJo8p8+EOjBPD3hSEE9TCcGZflRJueUhVQqWKBGoutb1:pf5gtCh2dLOjBT8E2fG1l3jcwKMoSJ

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	Google Chrome.exe

Executes dropped EXE 1 IoCs

pid	Process
3960	ins274.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3376-132-0x0000000000C60000-0x0000000000CC9000-memory.dmp	upx
behavioral2/memory/3376-138-0x0000000000C60000-0x0000000000CC9000-memory.dmp	upx

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	ins274.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins274.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	ins274.exe
File created	C:\Windows\assembly\Desktop.ini	ins274.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins274.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
852	3960	WerFault.exe	81

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeBackupPrivilege	3312	dw20.exe
Token: SeBackupPrivilege	3312	dw20.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3960	ins274.exe
3960	ins274.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3376 wrote to memory of 3960	3376	Google Chrome.exe	81
PID 3376 wrote to memory of 3960	3376	Google Chrome.exe	81
PID 3960 wrote to memory of 3312	3960	ins274.exe	84
PID 3960 wrote to memory of 3312	3960	ins274.exe	84

C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe
"C:\Users\Admin\AppData\Local\Temp\Google Chrome.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\n274\ins274.exe
  "C:\Users\Admin\AppData\Local\Temp\n274\ins274.exe" ins.exe /e11736156 /u5193805b-c284-4f85-b972-26465bc06f2f
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3960
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 1264
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3312
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3960 -s 1312
    3⤵
    - Program crash
    PID:852

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 460 -p 3960 -ip 3960
1⤵
PID:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n274\ins274.exe

Filesize
201KB

MD5
c7ac2771873ecbb415cc2d1610df8b41

SHA1
9e35633a4e838f4211e0c808ea6b8085fe3af840

SHA256
45d1ae15bd9f17bbd4d9708b3a57daa312685db614679270226393a20af0699a

SHA512
4dbd528a4b4d6403fffd90fc5a0c3ee20a009ac9d68a11e4b526399f1e8f75d7508bb30ac7be71ac09f1fb3e3f2fbefacf608278dd676934b833a60a983b413e

Download Submit
C:\Users\Admin\AppData\Local\Temp\n274\ins274.exe

Filesize
201KB

MD5
c7ac2771873ecbb415cc2d1610df8b41

SHA1
9e35633a4e838f4211e0c808ea6b8085fe3af840

SHA256
45d1ae15bd9f17bbd4d9708b3a57daa312685db614679270226393a20af0699a

SHA512
4dbd528a4b4d6403fffd90fc5a0c3ee20a009ac9d68a11e4b526399f1e8f75d7508bb30ac7be71ac09f1fb3e3f2fbefacf608278dd676934b833a60a983b413e

Download Submit
memory/3376-132-0x0000000000C60000-0x0000000000CC9000-memory.dmp

Filesize
420KB

Download
memory/3376-138-0x0000000000C60000-0x0000000000CC9000-memory.dmp

Filesize
420KB

Download
memory/3960-136-0x00007FFCA9460000-0x00007FFCA9E96000-memory.dmp

Filesize
10.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads