ec556b654a240b7b256cb9a8ae785963fd232e18e6c48e896272984eca847d4f

Analysis

max time kernel
145s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 20:24

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General

Target

2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
Size

68KB
MD5

3042696e30608a27beae9522dea2a2b6
SHA1

302071c513bf13d71a834c43b42a13720bcc8257
SHA256

ec556b654a240b7b256cb9a8ae785963fd232e18e6c48e896272984eca847d4f
SHA512

75c368ecc0344840272a7fd759f730d18cef3295fa1cb789e979158e272b73aed6a5a8a11c9484980200b4c3c774f597209db700ca6510c123796744a30c6b9f
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEZ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023252-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023252-13.dat	CryptoLocker_set1

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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1132	hurok.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 4400 wrote to memory of 1132	4400	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	91
PID 4400 wrote to memory of 1132	4400	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	91
PID 4400 wrote to memory of 1132	4400	2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_3042696e30608a27beae9522dea2a2b6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1132

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=3696 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:1972

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\hurok.exe

Filesize
68KB

MD5
5d0bcb4e844cb46ba469ce074ced48c9

SHA1
9b77646caaefc4c983621e95c1382020e05a8f32

SHA256
464a1b783d6c73ae57f0a21b2b697b66ac97b0fe93d3003e1764fe32b6018e74

SHA512
7bfb185c4ca59e05190336cac00711c06c66ce92d7309e6302e9be20728e8e3a5be3d7faafb55ee6607411d7924b3856926df8650c5a253d091eb76a68d52c7d

Download Submit
memory/1132-18-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download
memory/4400-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4400-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/4400-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download