f4d3ef3e96c6354193bf75944ba28744a33384b96075561852c035f4e97867ac

Analysis

max time kernel
145s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 13:36

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General

Target

2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe
Size

58KB
MD5

be0dae8742f993f644af69090992db33
SHA1

c52c121aa5a0eed01231d34faf543bfeaf872a76
SHA256

f4d3ef3e96c6354193bf75944ba28744a33384b96075561852c035f4e97867ac
SHA512

91e3b4f2da79a1be945c5aa5418f0592c2e12898adfd6548d67629735d721e6e7f82330ad31f4c84834ded33460ec312ed837a0459bc0cf47247280ae3da0196
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxnxf:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023147-12.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	misid.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 4748 wrote to memory of 2852	4748	2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe	85
PID 4748 wrote to memory of 2852	4748	2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe	85
PID 4748 wrote to memory of 2852	4748	2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_be0dae8742f993f644af69090992db33_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2852

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\misid.exe

Filesize
58KB

MD5
d60ebf17c2c4628fe2328389de853ddb

SHA1
332f0f73cbad0ec6ae77c0ff4e2faac04b4bcb46

SHA256
d7a3130a0880d9b4223656889723af05ca36fbb43d57f809938315b5ca36498e

SHA512
d585d794d193009847056579162d18ceddfa4899a26f00ad9101f929d0f256d7ec0f796b34a155fb0193c216cd4e5759eeae63a3eef698f340ca0eb26c22b67f

Download Submit
memory/2852-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2852-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4748-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4748-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4748-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download