49c523fcbd9807019b7341e8adf9968bd40821a9170c9b87427c2f24a47655c2

Analysis

max time kernel
108s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 19:44

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General

Target

2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe
Size

42KB
MD5

d9b30c92f2c7f92a666c702d572e6a73
SHA1

1d804c3d966caa28db785c08132494d5b13553cc
SHA256

49c523fcbd9807019b7341e8adf9968bd40821a9170c9b87427c2f24a47655c2
SHA512

4fb9304b4aadfe05bf3402b8343f3ea49d71f3b575064a5bc97802391f35f2d7933c4d11e92b9555cd4cef89ca92ce98babf02f9442ee44c48057bedbac63bdb
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3p+OMD6:bAvJCF+RQgJeab4sxR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002330a-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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	2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	demka.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 4436 wrote to memory of 1488	4436	2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe	93
PID 4436 wrote to memory of 1488	4436	2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe	93
PID 4436 wrote to memory of 1488	4436	2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_d9b30c92f2c7f92a666c702d572e6a73_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1488

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=4072 --field-trial-handle=2284,i,2771196087253062161,8107167670425198948,262144 --variations-seed-version /prefetch:8
1⤵
PID:2248

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\demka.exe

Filesize
42KB

MD5
b21941ee190c52f77ee830bc21cd2d4c

SHA1
fcb027dd7cd8c42fc13dd6eabf9903c0c32e7503

SHA256
8009709c6beb9cbc47c08ca73d9753fe62b2fbf150b7aac22427bcf24efb8f5b

SHA512
757a85b1fb74c954da15c09154f7418a431c572299b9274d042c928853b65acb251b97e58a5b522ce2c44831b9aa5f58384785c325d9061c0af2edd45ecb0756

Download Submit
memory/1488-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4436-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4436-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4436-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download