eb69cafed1144c213d3acfa5ae41f168dc2fe47e4e7165fc5dc6e246b4fc57b3

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 23:49

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General

Target

2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe
Size

79KB
MD5

b5c26b4da29b859ccbda4dd413709096
SHA1

f9b41e8999fd79482b3d8b35060ff95a451f6b71
SHA256

eb69cafed1144c213d3acfa5ae41f168dc2fe47e4e7165fc5dc6e246b4fc57b3
SHA512

c7e389b848258dc4814a173c88d7f5d0b5580ff85b3fda6a5d73440c06432183aee15451b3f320c94f99192e6c3154eb3db13d66335a27efa46f573cb8f38ceb
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf7gB7s:vCjsIOtEvwDpj5H9YvQd2J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000232eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000232eb-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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1316	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 216 wrote to memory of 1316	216	2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe	96
PID 216 wrote to memory of 1316	216	2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe	96
PID 216 wrote to memory of 1316	216	2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe	96

C:\Users\Admin\AppData\Local\Temp\2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_b5c26b4da29b859ccbda4dd413709096_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:216
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1316

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=1428 --field-trial-handle=2588,i,14229658658073991926,6938034815163866135,262144 --variations-seed-version /prefetch:8
1⤵
PID:1568

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
79KB

MD5
1bacf2616ceeddcf36cccaed04ca58f2

SHA1
8152dee78092331dc8147eed2dd4dc2baff41bae

SHA256
b5a7fbb3c4f4d43d247d303e9e08d2d7d07cbc7729a7631fc667b7799c8e511f

SHA512
59656e8045ffc0be62b04178f8d9a992fcbd7ce7e71a3e753e3fc6cfa6a4ff828f211b8c24b1cd4bcbd6331df096f4a3c2dc80922c970c4245a680641af5d78d

Download Submit
memory/216-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/216-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/216-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1316-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1316-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download