25497c4cf8765adbc2ddaca719947e89f13bd5065a5ed4a72ab5c25a83316dcf

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25/06/2024, 06:38

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General

Target

2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe
Size

72KB
MD5

cadf8239ac2e0f142e36ff3061820788
SHA1

ad2f280432e50e2f285f2756ead8f498c94e15a2
SHA256

25497c4cf8765adbc2ddaca719947e89f13bd5065a5ed4a72ab5c25a83316dcf
SHA512

3952a40554aa4453e45a6c7f5a21b506444c27ce9895a978d56da0ba6650c0bb3b3f8eb7ac897546916950ab6c44bb637c3aa317a33a1d98b04c112751852045
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOB:DW60sllyWOtEvwDpjwF85S

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00090000000235f6-13.dat	CryptoLocker_rule2
behavioral2/memory/748-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00090000000235f6-13.dat	CryptoLocker_set1
behavioral2/memory/748-16-0x0000000000500000-0x000000000050B000-memory.dmp	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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	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 748 wrote to memory of 2868	748	2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe	88
PID 748 wrote to memory of 2868	748	2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe	88
PID 748 wrote to memory of 2868	748	2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-25_cadf8239ac2e0f142e36ff3061820788_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2868

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 --field-trial-handle=1300,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4240 /prefetch:8
1⤵
PID:772

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
72KB

MD5
68948a261c33f8e38edc5367d25682e0

SHA1
c284d077e3f2aaac8579256ab107d939656ec5cf

SHA256
26bad9443cfec8f8b77b4c2b8b044eb37ffe40e577afe220ea3792052cbf6740

SHA512
ab737c1f05d63a4b4dc596feedf57159a0bdc2a0a030944d2c62cc27a08db0ba7c91d69a161e6a17c3b87b25ecefd9a51cbbfe2ef51e9f4c7aeb7f65082e522f

Download Submit
memory/748-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/748-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/748-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/748-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/748-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2868-19-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/2868-25-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download