6853850a68106958b35ac40c8b7bfbc51e7692df40f1e6298c07b91c443c47a4

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 06:29

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General

Target

2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe
Size

89KB
MD5

59ec550a115d6430097d1e227ebe8d97
SHA1

d6d799e492962eb783b0958917345fa235a75e39
SHA256

6853850a68106958b35ac40c8b7bfbc51e7692df40f1e6298c07b91c443c47a4
SHA512

ad2650b630ae2136b3d74529525f9d1826b2e55efbca4707864b76d45ac7a2395a9ef52553b76186e166a1bb1829ae3fc1c9fae3bd450fcbc7557abcc2e74b7f
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQYzTH:vCjsIOtEvwDpj5H8zPs6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000002271f-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000002271f-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	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 3228 wrote to memory of 3024	3228	2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe	98
PID 3228 wrote to memory of 3024	3228	2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe	98
PID 3228 wrote to memory of 3024	3228	2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_59ec550a115d6430097d1e227ebe8d97_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3228
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3024

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=4212 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:2744

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
89KB

MD5
a5734a5e3b5afc5ccc90b263f6f316b1

SHA1
9f77003b0e2fc78d8a5aa485e387286ccc971ed1

SHA256
d5f2da7ff03681abc411e8a1b8c67811ad3a7a58e527fb0e003b536f2ea99ad9

SHA512
d9d70eefca72a5f8e588bc67af333b298a16610049c948142a41ce22176eba5283f90733772918e9de230962a98e5aecd12e84ca5c63c58a6baaff120a886475

Download Submit
memory/3024-17-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/3024-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3228-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3228-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3228-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download