93cd2b20f53d7bdc884cabbaab451a374cea74cf2b544d7bdf92a6e066723801

Analysis

max time kernel
150s
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
12-05-2024 19:47

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General

Target

2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe
Size

73KB
MD5

1443c4f16f3287e85fe33c1891a292ee
SHA1

200ddabb7fbbfe3c697bb4f89ea447ce970ecb88
SHA256

93cd2b20f53d7bdc884cabbaab451a374cea74cf2b544d7bdf92a6e066723801
SHA512

f158c7366c56f52c3f94f4b2ce2ef34b5899c3e9a860cb6a32ba97e63ff8750d0a181ed92d4393d2cb5d5f4948206c294d92de46f9ca0970d2d5ad2c2a3cb74d
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsix:u6QFElP6n+gWMOtEvwDpjJGYQba

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023230-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023230-12.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	2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	asih.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 844 wrote to memory of 4832	844	2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe	91
PID 844 wrote to memory of 4832	844	2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe	91
PID 844 wrote to memory of 4832	844	2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_1443c4f16f3287e85fe33c1891a292ee_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:844
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4832

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=3792 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8
1⤵
PID:3088

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\asih.exe

Filesize
73KB

MD5
cc5c04013e43aea21bc7545a68b0e027

SHA1
872c6c1b081676dd5123e56d997654bf8edb54d9

SHA256
699d26b59391c4a5636c41b1920aaf43026bd1912af36b7bba79feb9aaf80abb

SHA512
32ec16c43f48b4c624b512a6fb4bb1d078f346329577e430777185df360fe5f30094decd468c8680e5622ab5574e556efc47901192ac11e92828ae1da2b51d4e

Download Submit
memory/844-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/844-1-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/844-2-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4832-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4832-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download