24b6b1cfd0dd281424f048ba2ae9fb7b840c04a101b880b289dee82517a215ae

Analysis

max time kernel
156s
max time network
167s
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, 23:26

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General

Target

2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe
Size

386KB
MD5

1ff6c606041a80e1f3a7ce9c5c3620f2
SHA1

f00045d236b8133d8661792f329f545157d81595
SHA256

24b6b1cfd0dd281424f048ba2ae9fb7b840c04a101b880b289dee82517a215ae
SHA512

029cd49e82ce7b4aa258623d3e8fae907ba30f982ba70d624ec3eb76d56721ceb85ac87c12e0997fe736d521a0939deb0d6454259af41bd13311d46dd59be8c5
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXj:nnOflT/ZFIjBz3xjTxynGUOUhXj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023244-12.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	2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	hasfj.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 3884 wrote to memory of 2308	3884	2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe	98
PID 3884 wrote to memory of 2308	3884	2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe	98
PID 3884 wrote to memory of 2308	3884	2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_1ff6c606041a80e1f3a7ce9c5c3620f2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3884
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2308

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:956

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\hasfj.exe

Filesize
387KB

MD5
97c56a744a6a59d78f83f389a6f4eeb6

SHA1
b9eed5bd37431c49ea98e18647c39a1e2953a4d3

SHA256
c36b31cf5cbb0ce01994ad88372c653e00c973d36d69139037c0b420cf4bc283

SHA512
5c9060cef9c5ee746ef55cd0700c90ec2a32d346d660b014561a05e9afc2d0a1e3103eee27ffbcc1e04811d04180bf2bc2b58e2bbeb665324526e3ec64b158d4

Download Submit
memory/2308-17-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2308-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3884-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3884-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/3884-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download