5b8fd29e41b3cdd5b511e90555decdac03973714e02bbd7e8140287dbb958bae

Analysis

max time kernel
145s
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 01:28

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General

Target

2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe
Size

30KB
MD5

5670267779b14c549e3a4ff8a2dae8f4
SHA1

0d62ad6264a70189451b1e2487f177d225cbeb69
SHA256

5b8fd29e41b3cdd5b511e90555decdac03973714e02bbd7e8140287dbb958bae
SHA512

9f41b2b3c65aec3c9f0c55185ecd94dc21a2611df9f9f72a46ffab640167116d0a8bd0469f32725630522e0de711049f72138b891dd248b1e98ffddb111a766a
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM3:bAvJCYOOvbRPDEgXRcuM3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023233-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
440	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 2572 wrote to memory of 440	2572	2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe	89
PID 2572 wrote to memory of 440	2572	2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe	89
PID 2572 wrote to memory of 440	2572	2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_5670267779b14c549e3a4ff8a2dae8f4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2572
- 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:440

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

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Downloads

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

Filesize
31KB

MD5
4b254bbde156f0cdef192bca8e47cd6d

SHA1
30b3d825ff5ccc2d826825338c045df98674d842

SHA256
ebc696223970005b3059ce00d54e6cde48434c629bfdc5fd1789863e33dfd98e

SHA512
89330b6e6c237d486192346600115c65f422d218a09f9dc73604fae92db8a2f5943a27ddfab6051dda3e35c75171125a2bd89386692cff2f5d42b39da908da10

Download Submit
memory/440-21-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2572-0-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2572-1-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/2572-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download