41c3732288856c9ff926b7030ca7e529e4da838fdc302c73e7373cd29450011f

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 23:34

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General

Target

2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe
Size

37KB
MD5

992dc5ed9bca489cf0bac48831330786
SHA1

c99feeda426eed4e6a88596eac9f6111a8d6669e
SHA256

41c3732288856c9ff926b7030ca7e529e4da838fdc302c73e7373cd29450011f
SHA512

34f1fac604bcabeec053ce68f60b3ca6a873218ac91dde431d49a8412f99f6c589c77844064464cd1f3b6eb897b59698019096bf38ce762cadd834060983b3f2
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3pQheDIHA:bAvJCF+RQgJeab4sbx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023276-12.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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2392	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 1092 wrote to memory of 2392	1092	2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe	81
PID 1092 wrote to memory of 2392	1092	2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe	81
PID 1092 wrote to memory of 2392	1092	2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-12_992dc5ed9bca489cf0bac48831330786_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1092
- 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:2392

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
37KB

MD5
02986a70c2d962569f5111899fc92e35

SHA1
12245a102b03c9db80ee79b5b136762f5d35e7b8

SHA256
0e2313ce235225915fbf516c2da860d78c366cb9bc862331a8cd71b59f4ef9a4

SHA512
f9293ee94d26c333c10a532be56d101b1c6159e317965e708145aa5f289b28fd6ba4fe6edb9bbc16ee52a1066a545e8585c0b8afe221649eb4e8fd344dfc3fd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
186B

MD5
1e45d2f5bd01eb8ec2eb43628f8b4052

SHA1
44428e9b1f6743fd5865b52dc0eb64e0a822aec0

SHA256
6034cfc32721d862c25f305241ccdddf741d1bb62bb517c59ae2bfc8b698b67a

SHA512
72fbc3de242c8df2d5b449e7a6883fcee5a4f6b02facaa8affbd068cbdbda65ce3b70a51e42947a86f9f09039f3921acaf06773e35c30992adba6636968132d7

Download Submit
memory/1092-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1092-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1092-8-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2392-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download