4879f28d9ea2b14fcb3bf3d0ca2298445c8cc4d20b58d22a3c88848058359c92

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 21:34

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General

Target

2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe
Size

41KB
MD5

a4d415128d4592504fac6884935855d5
SHA1

ff2c5e0781920336baeba7fb5b36e4e7695d4226
SHA256

4879f28d9ea2b14fcb3bf3d0ca2298445c8cc4d20b58d22a3c88848058359c92
SHA512

c2d98c68618507ab05d2195cf8524b34739151a05757627c9a889695caea58c493327d5080ffed70b4b201964ed97d4580063877f27e422cdf7e7c67c2bc98f3
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+iA:bAvJCYOOvbRPDEgXrNekd7l94i3p+Ar

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002321b-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	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 3168 wrote to memory of 2044	3168	2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe	89
PID 3168 wrote to memory of 2044	3168	2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe	89
PID 3168 wrote to memory of 2044	3168	2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_a4d415128d4592504fac6884935855d5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3168
- 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:2044

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
41KB

MD5
dbb41b35a40d7c1e0a0c0d18015fed90

SHA1
83c3f154a7c63c806f44dbfc4657f11ed1875bb1

SHA256
fab99b53d46a19e72341a45abd788008a9ade3b44e8df5c10be3a94b9280d47d

SHA512
2968fa6153fd46242d9c7301b2d020c794ffe0b461719ea458edd3d9abf99153b894a59994e79d44ef35a4122ac9bb44a77abdef4c2c05cea4375ec7fcdd002d

Download Submit
memory/2044-20-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/3168-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/3168-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/3168-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download