d0f12346d5d1fbef9fefb97bc8671dd63f0fce2f97cb92402bb8ddec505e5dc7

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/04/2024, 23:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe
Size

41KB
MD5

41cf98cbdcf2a73b1f765dd57e66a870
SHA1

accad0ba9608d566caf20d4dc87d8f8b624e95c4
SHA256

d0f12346d5d1fbef9fefb97bc8671dd63f0fce2f97cb92402bb8ddec505e5dc7
SHA512

88e81d1187951563bafbbb5f18858ed28f5eb1236c02f55a5bc16b1ed06cf3b38e167926d93457e800827aa99bd9ab19754c304b17fca546992bda6f3111e8a5
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXW1Rm:bgGYcA/53GADw8C3q8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332f-12.dat	CryptoLocker_rule2

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	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4440	hasfj.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 1400 wrote to memory of 4440	1400	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	92
PID 1400 wrote to memory of 4440	1400	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	92
PID 1400 wrote to memory of 4440	1400	2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_41cf98cbdcf2a73b1f765dd57e66a870_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4440

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=4092 --field-trial-handle=3136,i,3192284747741020952,1225278682167953346,262144 --variations-seed-version /prefetch:8
1⤵
PID:1192

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\hasfj.exe

Filesize
41KB

MD5
a2f78c61fe4b8edd3440806a10df5629

SHA1
515e099cee12079e861f8ecfcac24194879645d8

SHA256
c561e9f8609b4dd7f3fd5edd2acd86de31a65cd406fbf39481cb871f98e9cfd3

SHA512
f335c2540ddc740c8282c3a1dd8b6e418940758a704ecf30b8cf89f680e076d1da7148413e47885cbb753c67ebbab5b5c83c36badc39510976f5e094f0776af7

Download Submit
memory/1400-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1400-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1400-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4440-17-0x00000000023C0000-0x00000000023C6000-memory.dmp

Filesize
24KB

Download
memory/4440-21-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download