7a01584a7e4b420b400ddbb21b7cc6d89b1bd10058c3bc73c813307e2d8d7168

Analysis

max time kernel
130s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 01:22

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General

Target

2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe
Size

37KB
MD5

040d6bfa90c6d79d38453526b64d89f7
SHA1

ed803e29850c58b57c57e98f1bd4efa612ca22c6
SHA256

7a01584a7e4b420b400ddbb21b7cc6d89b1bd10058c3bc73c813307e2d8d7168
SHA512

903819fb07a6d234ce6711793cfaf9211b083e61b0cd171aa72b79278d4f33f500a46559af4bbb468cca8be9ec061a51cff2bd570663f46d58366d58f881d87b
SSDEEP

768:bAvJCYOOvbRPDEgXrNekd7l94i3pQheDIr:bAvJCF+RQgJeab4sbW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\demka.exe	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

Processes:

2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exedemka.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

Processes:

demka.exe

pid process

392 demka.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
392	demka.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe

description	pid	process	target process
PID 3516 wrote to memory of 392	3516	2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe	demka.exe
PID 3516 wrote to memory of 392	3516	2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe	demka.exe
PID 3516 wrote to memory of 392	3516	2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe	demka.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_040d6bfa90c6d79d38453526b64d89f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3516

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:392

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe
Filesize
37KB

MD5
b7f2917a0ee08b613915c7ade1de9f6c

SHA1
9fd3ca659a50c4987b83a7a394d231a5b61434cf

SHA256
0d19ba7f80f95a49ac47e3caaa5ef6ed832e2b9b5851961f3e3478b33adfe6a2

SHA512
6c8fd8ce0984a6242d3467943be818c410c55b5e123df54e98021cfcf6d96b78081369effad61a55eb1de3037ad870a0802fd8626059c72da7b4b7aa880924ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe
Filesize
186B

MD5
d8287aa1c9fcd7fa87ab62094a8f4873

SHA1
bea5aefe15f8f5668de1bd3ef16d2e7b947bce95

SHA256
d12d433509f895a1732e20f23ae6987940aa434c88ee155a3806e7be699e4343

SHA512
f947702a012330d24382d91b72d1a7f013e5e17a84b7ccfcb431e086c41c0e508223655b12388b6559017ca7300fa7289845c2f406c62d3155af54a7cf2563e1

Download Submit
memory/392-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3516-0-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3516-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3516-8-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download