3e74988f2a3e0bb23a9c0ff23c30f0644251ad4115b1655b1a73cf72ae945965

Analysis

max time kernel
143s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25-04-2024 15:45

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General

Target

2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe
Size

40KB
MD5

111d1643020b4710f5215325c864bf72
SHA1

1556842b50e7b3bb96c4464644da9242660caa69
SHA256

3e74988f2a3e0bb23a9c0ff23c30f0644251ad4115b1655b1a73cf72ae945965
SHA512

561d71548c74326a9b0b6bb057602fe74920ac4a63dfc06ab4fcf982d1756af07a16741799a81839710eab943abc42ba847bf36ddbf60da8493f5a6c264d827d
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLJJzMn:ZzFbxmLPWQMOtEvwDpjLeU3Yn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002325d-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	2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
952	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 2548 wrote to memory of 952	2548	2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe	92
PID 2548 wrote to memory of 952	2548	2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe	92
PID 2548 wrote to memory of 952	2548	2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_111d1643020b4710f5215325c864bf72_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:952

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=3736 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:3156

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
41KB

MD5
839d848b81f91b92416210cb5c59791b

SHA1
4c7fd79c1209f3f1f16cf36490114fdc6f307b93

SHA256
afaf2bbe4495c63dc107355c735c5e7e55fbd60d39b8c8319eec5d6610d178c2

SHA512
5a7b89d6192d5988fb1c56ffcca809ee61ecfb9ac2a590c36306b1bf184f815684cfda3f671dd3ab072f750228d574119a2c057fca25ded45fe9a52d607a2420

Download Submit
memory/952-16-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/952-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/952-24-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2548-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2548-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2548-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download