0efca0558ddac48ecce81672fbcbaaa1389bb564d033f45cca4426b2eb39504b

Analysis

max time kernel
153s
max time network
160s
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, 05:28

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General

Target

2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe
Size

60KB
MD5

1c4407611df40f196bda84dcf857e9a5
SHA1

0285e242a0fe41e53e75628916302c2419f6a834
SHA256

0efca0558ddac48ecce81672fbcbaaa1389bb564d033f45cca4426b2eb39504b
SHA512

c824d09815821f2b5e415b2c157253f11d2ea75948cd8c38e6835eedde88a2d1597ee6cec82eb5f16d2224d383634444b87bd01d3d23d30f6b545ef16ee97b3b
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxUUer:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lIr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023251-13.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	2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	misid.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 2616 wrote to memory of 2580	2616	2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe	100
PID 2616 wrote to memory of 2580	2616	2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe	100
PID 2616 wrote to memory of 2580	2616	2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe	100

C:\Users\Admin\AppData\Local\Temp\2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_1c4407611df40f196bda84dcf857e9a5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2580

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=5248 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
1⤵
PID:5084

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\misid.exe

Filesize
61KB

MD5
47f833fb0c4808b91f49b669dd6c2870

SHA1
acd3c231c47df757465b533858a1addfc1923404

SHA256
d5aa77d505e06c15d608dfc8d51424744dc46aa3f8605f194b3c65dca3a35490

SHA512
26069dc61fa776ef332ca1656fe2a9d1321a642ccf7fc3ac5da10e5ccdd6e2da7d3f808bf88c601a1858ed3c463cccd16d2bda3c53f444fdb8f24be9e719b223

Download Submit
memory/2580-17-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2580-21-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2580-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2616-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/2616-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2616-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/2616-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/2616-18-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download