39f59152979aeb68c8a5e7e7dbc30ad06fe653a938124e2bd9c462fb7caa5c21

Analysis

max time kernel
143s
max time network
87s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2024, 00:50

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General

Target
4a3a345c24fda6987bbe5411269e26b7.exe
Size 44KB
Sample240108-a7ftbsaea4
SHA256 39f59152979aeb68c8a5e7e7dbc30ad06fe653a938124e2bd9c462fb7caa5c21
MD5 4a3a345c24fda6987bbe5411269e26b7
SHA1 447f1e99c4de85751d2bc1a3a1bbf9edf293934b
SHA512 9bbe69fd9ac94abec035b38912f1e2b4badd5659bd53f0e3473ad02559ca05afc4dab38af38a443f4e73a146a4285ade0e3ff7ed7f6590fb39d10ef27c2bcc72
SSDEEP 768:DmpM8y1XjesaCphj0myab02H8P2XJu307OYW6hjrvZ45phb2Uc0:DaIwsp3MQ98+XJK0aYW6lrvQhu0
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\13357 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mspqunar.com"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	4a3a345c24fda6987bbe5411269e26b7.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4a3a345c24fda6987bbe5411269e26b7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4180 set thread context of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\mspqunar.com	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1820	4a3a345c24fda6987bbe5411269e26b7.exe
1820	4a3a345c24fda6987bbe5411269e26b7.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1820	4a3a345c24fda6987bbe5411269e26b7.exe
1820	4a3a345c24fda6987bbe5411269e26b7.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 4180 wrote to memory of 1820	4180	4a3a345c24fda6987bbe5411269e26b7.exe	50
PID 1820 wrote to memory of 2716	1820	4a3a345c24fda6987bbe5411269e26b7.exe	51
PID 1820 wrote to memory of 2716	1820	4a3a345c24fda6987bbe5411269e26b7.exe	51
PID 1820 wrote to memory of 2716	1820	4a3a345c24fda6987bbe5411269e26b7.exe	51

C:\Users\Admin\AppData\Local\Temp\4a3a345c24fda6987bbe5411269e26b7.exe
"C:\Users\Admin\AppData\Local\Temp\4a3a345c24fda6987bbe5411269e26b7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\4a3a345c24fda6987bbe5411269e26b7.exe
  C:\Users\Admin\AppData\Local\Temp\4a3a345c24fda6987bbe5411269e26b7.exe
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\syswow64\svchost.exe
    3⤵
    - Adds policy Run key to start application
    - Deletes itself
    - Drops file in Program Files directory
    PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1820-3-0x0000000000410000-0x0000000000412000-memory.dmp

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memory/1820-2-0x0000000000400000-0x0000000000405000-memory.dmp

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memory/1820-0-0x0000000000400000-0x0000000000405000-memory.dmp

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memory/2716-9-0x00000000010B0000-0x00000000010B5000-memory.dmp

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memory/2716-10-0x00000000011F0000-0x00000000011F5000-memory.dmp

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memory/2716-8-0x0000000000A80000-0x0000000000A8E000-memory.dmp

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memory/2716-6-0x0000000000A80000-0x0000000000A8E000-memory.dmp

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memory/2716-12-0x00000000011F0000-0x00000000011F5000-memory.dmp

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memory/2716-16-0x00000000011F0000-0x00000000011F5000-memory.dmp

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memory/4180-1-0x0000000000400000-0x0000000000412000-memory.dmp

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