6f0e5fcff4aaeb2024106c981eb3ba407b4915a17cbc26e7d608045212e194cf

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 00:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe
Size

123KB
MD5

06763d8bc80fa6f852cb79f627d71406
SHA1

2ec1a7fe5852b30321731dfedecac51ad559e76d
SHA256

6f0e5fcff4aaeb2024106c981eb3ba407b4915a17cbc26e7d608045212e194cf
SHA512

c791f38e7d7eda7a58dc9d8ae7aef547c1b657a5aad3726fb5328662747cc263f83cce8c90a3a1fd4a15d195b703953dcd2c6fc5ef996f49ef0534d246ac091a
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgm:u6a++OtEvwDpj6za

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023323-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023323-12.dat	CryptoLocker_set1

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
740	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 740	3928	2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe	95
PID 3928 wrote to memory of 740	3928	2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe	95
PID 3928 wrote to memory of 740	3928	2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_06763d8bc80fa6f852cb79f627d71406_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:740

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4148 --field-trial-handle=2272,i,1589057049575649654,2929151440327217574,262144 --variations-seed-version /prefetch:8
1⤵
PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
123KB

MD5
d33065ed178a265ff93805344e9c0432

SHA1
a70063076e2ec8a098d2dd34b647e0fa33d9ba26

SHA256
4bbec151e4f046ce6323678a240097b3d78011c678a73c045444a74abccebf88

SHA512
0a5bad0669e328f6ea893ca1fbadfbec63586e78597cd5a8ae7df07faae3d46e1e6c2b83218793b5cee8749a5fee1b5446d3625015eb14ab2f3a6abb0f57e113

Download Submit
memory/740-17-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/740-18-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3928-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3928-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3928-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download