0dcb6900a6b351ab847ac83dd756fe22e69a6030794517df5e1a6d3c1f8fa4d6

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29/02/2024, 00:57

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General

Target

2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe
Size

40KB
MD5

e72b5bd884e71b41df663304f0e4c5bd
SHA1

ba017c9c6e67ad137749ab364cd8583f2d2e0518
SHA256

0dcb6900a6b351ab847ac83dd756fe22e69a6030794517df5e1a6d3c1f8fa4d6
SHA512

19b59f21f20a0a5d3853b63760e44720853a36a20665a6608b60896b65abb93bd656e96c90d3f21926e42e269a07920c61074c0c021fd6e99f24d7a0c6011112
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3py/yY/m:bAvJCF+RQgJeab4sy/lm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e9a0-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	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 4740 wrote to memory of 2816	4740	2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe	86
PID 4740 wrote to memory of 2816	4740	2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe	86
PID 4740 wrote to memory of 2816	4740	2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_e72b5bd884e71b41df663304f0e4c5bd_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4740
- 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:2816

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
40KB

MD5
22dc6ccbfb470ea965c740fbc0205438

SHA1
f96d73f6ae1622c22a5f843d6966da8b0fddba79

SHA256
ac3942a2f1e2067984edcdb157a9f7a12d4fd4ba3ccaaea0e0d690e4086b139b

SHA512
a841ffb8ff31bf6e10835515ea4c6b009c9ff62967a38a09e68c11e07dc14f17149803c7c84fa63f09be341822f4d5a0822dca3dab4ad3a225108858199bfb64

Download Submit
memory/2816-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4740-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4740-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4740-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download