eecea0b1a937ba3446d3cacb97584fbc0151d5b28e11a1f50a02208e367d48f8

Analysis

max time kernel
151s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 04:08

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General

Target

2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe
Size

30KB
MD5

ff8632f5d42e78758a2f008c068ebe31
SHA1

d7bc3f8d7bfe6e3535a1685370e6304ef35e7a8e
SHA256

eecea0b1a937ba3446d3cacb97584fbc0151d5b28e11a1f50a02208e367d48f8
SHA512

e7e775b3d8078b0c2b689dacab9aa295071861acc80ba4d92489561ca560af1c31c25ffa3c915745c9fda41f89f97fec74ec09f8d057a1b3d94af64fe15956e4
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJ5STVnTD:bA74zYcgT/Ekd0ryfjQRSnWVTD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002324b-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1844	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 2188 wrote to memory of 1844	2188	2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe	98
PID 2188 wrote to memory of 1844	2188	2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe	98
PID 2188 wrote to memory of 1844	2188	2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_ff8632f5d42e78758a2f008c068ebe31_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1844

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=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4348

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
30KB

MD5
db962f1830ed836dcabb0affa53bc873

SHA1
83bcbd0f041d425bce333107fc8e8642e9a45e59

SHA256
8c3b7641906155caa969247ba59fa3923dd5f575e70026791e7f363795fc9784

SHA512
9a35d06b8c050c1c2d9a833af174a665ba63a7cfca1cc7a9eeb3c2d0c25aad487f826e072b57e2d6265742a6dcc61d9119c6d1e107f1583db2f87df1669f6cab

Download Submit
memory/1844-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1844-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2188-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2188-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2188-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download