154c77968a6c9793fe5e6d54d68b745f953fd352a701f652dec49f5051397a09

Analysis

max time kernel
145s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 00:48

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General

Target

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
Size

65KB
MD5

bb0ad7ca3c028c70f9637c5516a9f367
SHA1

1e5a9a7e2deafb41b53a4ac97742c5d5010f9f52
SHA256

154c77968a6c9793fe5e6d54d68b745f953fd352a701f652dec49f5051397a09
SHA512

588eaa56fe42d0bb125e04271df73759b73193f183774eba29c6625313f8cac8860da8974236fabfaeba35463ffb4a040d23cb1cbca17d1371f3c9dc6fcd9024
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299NQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7e

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	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

Processes:

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exehurok.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_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

Processes:

hurok.exe

pid process

3892 hurok.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3892	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe

description	pid	process	target process
PID 2512 wrote to memory of 3892	2512	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe
PID 2512 wrote to memory of 3892	2512	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe
PID 2512 wrote to memory of 3892	2512	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2512

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:3892

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=4068 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:3424

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
65KB

MD5
90cb9ef69615f34ef816a50440c6c5b5

SHA1
8275a73a62e9019e4e7c31d906a59044f48a48e3

SHA256
c69aa588b8417527ccb9a9b39f5247a119b7602b1464658fb9bb5f378dd74d1f

SHA512
2a54e7c03a603f15b53e327cdbc12720b5ce6c85dba00fc5dec24c515957eb10276216fe8e4085f3968ba937b845498fd463036a06f0382ab03f9c1d434a4fb4

Download Submit
memory/2512-0-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000002270000-0x0000000002276000-memory.dmp

Filesize
24KB

Download
memory/2512-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3892-25-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download