876ce517b5b221d24d3ceab799f6790bc402dbd89232a512ba05ea795ed13e58

Analysis

max time kernel
89s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 06:25

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General

Target

2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe
Size

29KB
MD5

385ee7d9d377f4dc4596fd9c9207673a
SHA1

0ed9c93a590afe49e2546efef633a846abb91a6f
SHA256

876ce517b5b221d24d3ceab799f6790bc402dbd89232a512ba05ea795ed13e58
SHA512

867839d3f4510d9068694ce205198e28980d14b2c289de47f504efb2b1c989f006661addd8a576123503ef7837bf0e6b4364d3d1b4fad3ac9f8507b6b335e249
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJa4:bAvJCYOOvbRPDEgXRck4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231fe-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	2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_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
680	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 2556 wrote to memory of 680	2556	2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe	88
PID 2556 wrote to memory of 680	2556	2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe	88
PID 2556 wrote to memory of 680	2556	2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_385ee7d9d377f4dc4596fd9c9207673a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2556
- 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:680

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
30KB

MD5
30bd90bc31740782b0d8186fb9e8de87

SHA1
070050e72d0754930ae005a27a097810d66dca27

SHA256
85165e3df43e592611010aca2e11d11d71957a7b3da44a2c1fa02acad253d65d

SHA512
ab4838aef583a165b48173fc54990b4a51e21ff1b293eb7bfa10a2a6c4de40c25df4281f72d8acd97b5b75873a6c3483d2655c925104e15e486efff9a891b2c1

Download Submit
memory/680-22-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2556-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/2556-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2556-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download