a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0

General

Target
a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe
Size 2.2MB
Sample210509-d87amv3bve
SHA256 a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0
MD5 9a3d14dd493c2a25d9db58184bbf3c4a
SHA1 f4673116befd4ac121a2d0c4b6b4c8c5a9a74c1b
SHA512 4c233d8e5162578b05b4adc5f108e56adfb9fdcdd5cf4b6caf89e5aaf50f3babfc56b56d89c0b0ec1d0827ca42df305a4eeea399f1979926631149cc9b568f95
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
512	._cache_a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe
2988	Synaptics.exe

Suspicious Office macro 1 IoCs

Office document equipped with macros.

macro

resource	yara_rule
behavioral2/files/0x000200000001a2df-142.dat	office_macros

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-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe

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

System Information Discovery
T1082

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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	Synaptics.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
216	EXCEL.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
512	._cache_a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe
216	EXCEL.EXE
216	EXCEL.EXE
216	EXCEL.EXE
216	EXCEL.EXE
216	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 512	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	75
PID 1108 wrote to memory of 512	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	75
PID 1108 wrote to memory of 512	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	75
PID 1108 wrote to memory of 2988	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	76
PID 1108 wrote to memory of 2988	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	76
PID 1108 wrote to memory of 2988	1108	a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe	76

C:\Users\Admin\AppData\Local\Temp\a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe
"C:\Users\Admin\AppData\Local\Temp\a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Users\Admin\AppData\Local\Temp\._cache_a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_a5a94b659b84c1420c1579553228fd553edc60f4be53d49c9fb7007304cc5db0.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:512
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  - Modifies system certificate store
  PID:2988

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/216-126-0x00007FFAB7550000-0x00007FFAB7560000-memory.dmp

Download

memory/216-121-0x00007FF7A2600000-0x00007FF7A5BB6000-memory.dmp

Download

memory/216-123-0x00007FFAB7550000-0x00007FFAB7560000-memory.dmp

Download

memory/216-124-0x00007FFAB7550000-0x00007FFAB7560000-memory.dmp

Download

memory/216-125-0x00007FFAB7550000-0x00007FFAB7560000-memory.dmp

Download

memory/216-127-0x00007FFAB7550000-0x00007FFAB7560000-memory.dmp

Download

memory/216-130-0x00007FFAD8460000-0x00007FFAD954E000-memory.dmp

Download

memory/216-131-0x0000025C39A30000-0x0000025C3B925000-memory.dmp

Download

memory/1108-114-0x00000000007D0000-0x00000000007D1000-memory.dmp

Download

memory/2988-122-0x0000000000530000-0x00000000005DE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads