a9027c6070365053c3cb91261991c71f1d3a63707df8467e413847f344b3af4d

Analysis

max time kernel
291s
max time network
325s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2022 14:13

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General

Target

TrashMalwares-main/Install Windows20.exe
Size

24.4MB
MD5

8c7065d7b4ce7f50e145bd6082204b00
SHA1

40e4bea57fc03d3bed8b4614ec790242cc0650f5
SHA256

9b66b0914cad75dd3072726f0a7b3d21db55bd205f409a6ca46472cfe2a78eec
SHA512

560a438e307e217875a8a9227187e22027dc48c58b9fe1041361d6d8a5cb917728ae22655af084f9b38e45928a7ba1b15eab6e7c2d4d6862391e82eba00583f6
SSDEEP

786432:KJ4Hil5v88iWkupGx7xvkCBiWP9BKBB5zw8:K2CfiWRMaCBiW1+59

Score

7^/10

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

Processes:

Install Windows20.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	Install Windows20.exe

Drops file in Windows directory 6 IoCs

Processes:

Install Windows20.exe

description	ioc	process
File created	C:\Windows\SystemUpdateInstalled\doom.bat	Install Windows20.exe
File opened for modification	C:\Windows\SystemUpdateInstalled\doom.bat	Install Windows20.exe
File created	C:\Windows\SystemUpdateInstalled\installer.exe	Install Windows20.exe
File opened for modification	C:\Windows\SystemUpdateInstalled\installer.exe	Install Windows20.exe
File opened for modification	C:\Windows\SystemUpdateInstalled	Install Windows20.exe
File created	C:\Windows\SystemUpdateInstalled\__tmp_rar_sfx_access_check_240569687	Install Windows20.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Install Windows20.exe

description	pid	process	target process
PID 2172 wrote to memory of 4856	2172	Install Windows20.exe	cmd.exe
PID 2172 wrote to memory of 4856	2172	Install Windows20.exe	cmd.exe
PID 2172 wrote to memory of 4856	2172	Install Windows20.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\TrashMalwares-main\Install Windows20.exe
"C:\Users\Admin\AppData\Local\Temp\TrashMalwares-main\Install Windows20.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2172

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Windows\SystemUpdateInstalled\doom.bat" "
2⤵
PID:4856

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SystemUpdateInstalled\doom.bat
Filesize
824B

MD5
87ff7a4be8ba06c3d469b27fc8d665bc

SHA1
2ddb2e14bb115a85b13cfbe6204a45360c78de04

SHA256
c5e12fc8cceb6155d5176025c3aeff5e3d8aef8e54e6eabf5af43f19329a634b

SHA512
38a8d7ccc7f447b9e7b61d7f876a4f6de9782b09d1491e93bd0fcd3e15b6552cd6cfe015b020686eecea14a0951ed392abae55490b55af9c393eb02530632c35

Download Submit
memory/4856-132-0x0000000000000000-mapping.dmp

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