ea184efc99f0810c0f81b9d9f6df4a5d13d45caa8e3b143277ec1d875e13cc41

Analysis

max time kernel
150s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 00:24

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General

Target

2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe
Size

386KB
MD5

2cc06e5e88c01534a575e00b0459ba89
SHA1

18ed54414b49d741c770cd9c35bf7854f7915ebf
SHA256

ea184efc99f0810c0f81b9d9f6df4a5d13d45caa8e3b143277ec1d875e13cc41
SHA512

48c4f4c6cf21ea4ab626d9af618c0b0c1d5c50af8df33c7517345b98d63192c94fb974f1adfd35633c05d4de659a943dc15e3057c710ade32d6741913f3d49a0
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXk:nnOflT/ZFIjBz3xjTxynGUOUhXk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332c-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	2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4532	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 3268 wrote to memory of 4532	3268	2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe	99
PID 3268 wrote to memory of 4532	3268	2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe	99
PID 3268 wrote to memory of 4532	3268	2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe	99

C:\Users\Admin\AppData\Local\Temp\2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_2cc06e5e88c01534a575e00b0459ba89_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4532

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=2392 --field-trial-handle=2256,i,18272763564106695635,11201593968620719822,262144 --variations-seed-version /prefetch:8
1⤵
PID:1716

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

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Downloads

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

Filesize
386KB

MD5
bb4d0cc1cec246f4073b245027e25500

SHA1
35a12e541ea5c815cb32ecc7bb03a5c6c7e65a42

SHA256
9153b7d3425d2ab6a2a81e924ee76d13ddfe60e4ef56605281add3247c3fe341

SHA512
69cf552cf56dd3e29e04e2f55ec399a5531a4b5dfbd70bc9e8a846f5ddce168a536cc44940224694cbd4a6fa8f34e564aeaef107d628c2461ea23815386e5485

Download Submit
memory/3268-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3268-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3268-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4532-18-0x0000000002560000-0x0000000002566000-memory.dmp

Filesize
24KB

Download
memory/4532-17-0x0000000002590000-0x0000000002596000-memory.dmp

Filesize
24KB

Download