b401dac45ccac4844d9c0e2507dd513e05f523d396e2181018c93b28738b7268

Analysis

max time kernel
130s
max time network
197s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 23:19

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General

Target

2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe
Size

27KB
MD5

c298f455482cff9c1c3efba20ac11e41
SHA1

7542f9d07887a0a26ad0747263d769da084153bd
SHA256

b401dac45ccac4844d9c0e2507dd513e05f523d396e2181018c93b28738b7268
SHA512

e9ffb48dd96def476dd33aec1e154712b9185ee80e7b0b086eafbc0dffd664630c2395c17ff12070fc494c98151335dae8e4547d7045ca7855dd563f81dc8560
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzopG:bAvJCYOOvbRPDEgXz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022775-12.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
2224	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 3184 wrote to memory of 2224	3184	2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe	90
PID 3184 wrote to memory of 2224	3184	2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe	90
PID 3184 wrote to memory of 2224	3184	2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_c298f455482cff9c1c3efba20ac11e41_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3184
- 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:2224

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
27KB

MD5
97efadab3af1b2fc52b170c4b2bc300b

SHA1
ae99f9521d3de9ba480e8a3a4dde7300c0890ef3

SHA256
ad8b31e0d91439a85442b4eeebdf0d43c1eed8ca0ed1dd2ae8eaee5d81cf5f58

SHA512
9f9bbdaeec5b2d8fc300f5ffce6082a46dc93bf62304e7c8363c6b4a3dae3345608683e5491d41f80f5ffeaf92834502f553104ea14aa252f87b905deb3f0e3c

Download Submit
memory/2224-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/3184-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3184-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3184-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download