9af327b367b69a023c5269d7da2f73dbf7cb56580f6ac9a108c4bcb3a622842d

Analysis

max time kernel
91s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
16-01-2023 23:07

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General

Target

file.exe
Size

1.6MB
MD5

c326b83a1c289944a918f0dc22f7c003
SHA1

b835f673d18e44631d5e138e8d20243829ae93a7
SHA256

9af327b367b69a023c5269d7da2f73dbf7cb56580f6ac9a108c4bcb3a622842d
SHA512

8188fea4ebd3da84a752779a57b43e6f3cc573772dc305aff3f7173e7fc6c5be8f3f9629ab609a89603ee9ef5b27e31f79615f10dcecacb150866986cc6b3975
SSDEEP

24576:lnsJ39LyjbJkQFMhmC+6GD9BkzIs5pR9sgyRpYmGmYnUOPiWGIkq:lnsHyjtk2MYC5GDyiei+oId

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2044	._cache_file.exe
1812	Synaptics.exe

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	file.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"	file.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
1848	2044	WerFault.exe	83

Modifies registry class 1 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 2044	4752	file.exe	83
PID 4752 wrote to memory of 2044	4752	file.exe	83
PID 4752 wrote to memory of 2044	4752	file.exe	83
PID 4752 wrote to memory of 1812	4752	file.exe	84
PID 4752 wrote to memory of 1812	4752	file.exe	84
PID 4752 wrote to memory of 1812	4752	file.exe	84

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Users\Admin\AppData\Local\Temp\._cache_file.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_file.exe"
  2⤵
  - Executes dropped EXE
  PID:2044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 472
    3⤵
    - Program crash
    PID:1848
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Executes dropped EXE
  PID:1812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2044 -ip 2044
1⤵
PID:3600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
754KB

MD5
9053a0cbd2ae2350d9fa43468d6e96dd

SHA1
5c905ea1c7a6a52c3385dd68e11c45cfcc73cd63

SHA256
cc8f6c5a99dd8b667c8a32ff4f5aa2d3aee292b3a531493d74a65e3cbc12bf69

SHA512
3b1f01950bcd0e8973e47dee703f8e43046083c63abe9363ddbe973bb3f37a17829efae9a4ded360c1c40f65bcedaa9de14a4e3f1e487f8596ee8f53c54445c6

Download Submit
C:\ProgramData\Synaptics\Synaptics.exe

Filesize
754KB

MD5
9053a0cbd2ae2350d9fa43468d6e96dd

SHA1
5c905ea1c7a6a52c3385dd68e11c45cfcc73cd63

SHA256
cc8f6c5a99dd8b667c8a32ff4f5aa2d3aee292b3a531493d74a65e3cbc12bf69

SHA512
3b1f01950bcd0e8973e47dee703f8e43046083c63abe9363ddbe973bb3f37a17829efae9a4ded360c1c40f65bcedaa9de14a4e3f1e487f8596ee8f53c54445c6

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

Filesize
865KB

MD5
84336e3d11c2715b850e1029aff93803

SHA1
26c9e96ce4263bb599e3b92b6d52bf006d829ccb

SHA256
c5717a66a3b087ffcf68b53018bef0881d179922b7654eeab0075da195b5054a

SHA512
fbe5ade00745a2b287d63b3a3363f3ef6c14d274de61e7afafcbc646a98395bb7994da65429f1cc827e1ea2748f1b81c782ee98501611a46fc75410862198f92

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

Filesize
865KB

MD5
84336e3d11c2715b850e1029aff93803

SHA1
26c9e96ce4263bb599e3b92b6d52bf006d829ccb

SHA256
c5717a66a3b087ffcf68b53018bef0881d179922b7654eeab0075da195b5054a

SHA512
fbe5ade00745a2b287d63b3a3363f3ef6c14d274de61e7afafcbc646a98395bb7994da65429f1cc827e1ea2748f1b81c782ee98501611a46fc75410862198f92

Download Submit
memory/2044-138-0x0000000000400000-0x0000000000525000-memory.dmp

Filesize
1.1MB

Download
memory/2044-139-0x00000000776F0000-0x0000000077893000-memory.dmp

Filesize
1.6MB

Download
memory/2044-140-0x0000000076E10000-0x0000000077025000-memory.dmp

Filesize
2.1MB

Download
memory/2044-142-0x0000000000400000-0x0000000000525000-memory.dmp

Filesize
1.1MB

Download