cfd74171c5653e532f4d7e93e80c591f964239d3e5306561729fb0cc2fd8be18

Analysis

max time kernel
89s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 21:29

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General

Target

2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe
Size

38KB
MD5

f4efcb306e9c727df4e3ff1baefb7b3e
SHA1

dcfebc13a0644e7bc16bc793c3bb5e7c96f1dd60
SHA256

cfd74171c5653e532f4d7e93e80c591f964239d3e5306561729fb0cc2fd8be18
SHA512

800b0a0a65a856974af45a149555e99f067fb14cc7054dea002937e7bbf9f7422011288fa30a9aa8158d1599e603f76548884d85f28d4cdb9f082ebeac0fc6cc
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+iV:bAvJCYOOvbRPDEgXrNekd7l94i3p+B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231cc-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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
316	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 3556 wrote to memory of 316	3556	2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe	87
PID 3556 wrote to memory of 316	3556	2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe	87
PID 3556 wrote to memory of 316	3556	2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_f4efcb306e9c727df4e3ff1baefb7b3e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3556
- 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:316

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
38KB

MD5
c184d1cd322a47f706f28f1c57d711dc

SHA1
e788b01434497e793d0c3820feb11af72fb5efc4

SHA256
a56088f15448aa5765a6ac3cc8e17f9ec9e122148ecd5b69c716ddd164f1df12

SHA512
855adae61e8eead17614079c10111ad0c3391f91999c0c859a526bdf03c57f39508f7672fe7d6d110710dd0ebe981948fa229f1f60f9b004b09001d9e063dc9c

Download Submit
memory/316-21-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/3556-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3556-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3556-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download