d2b94f3ef420a3bd28fcca01f8ac7c7f1619fa2cf939bd7d1d77378f6ba8eac8

Analysis

max time kernel
142s
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
20/03/2024, 00:59

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General

Target

2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe
Size

32KB
MD5

e267cd0eb02234b3415318754eaf7da9
SHA1

d02a0d120dc17e3db28746b4f0a990367ec777de
SHA256

d2b94f3ef420a3bd28fcca01f8ac7c7f1619fa2cf939bd7d1d77378f6ba8eac8
SHA512

1bc15368ce2e80dca580ab92892f1d9b721a7858ca72d78773aa3c374b507f410c207877ab12af7d4069b423bd2ae9b6ee3463f698ed1fa4afeb7133fe293f9a
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6c3l8Sz90y:bAvJCYOOvbRPDEgXRc3SSz1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1764	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 2216 wrote to memory of 1764	2216	2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe	88
PID 2216 wrote to memory of 1764	2216	2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe	88
PID 2216 wrote to memory of 1764	2216	2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-20_e267cd0eb02234b3415318754eaf7da9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2216
- 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:1764

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
33KB

MD5
5715bc87e7235aea0d52c0136b61db6c

SHA1
3d6cee1ae1a7497cf5a5845f9317936419d871ab

SHA256
2e8bbef02ee870f2bc8d612c5524671b74e04f96c228f17d0ce09557325b825d

SHA512
f2e097f203344ff157aa2a396391db85360d128bdc04716349b7ecbde7ab61b9871bf12014a3615815e3bd4357cfd6893c2e4010c671db8a75d879610508f24e

Download Submit
memory/1764-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2216-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2216-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2216-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download