683316380205fd8f5ae507c6ff81e9a500773f078f407cfcfde38e6c5b02ab7e

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 03:32

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General

Target

2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe
Size

37KB
MD5

31bc258032a0b3890876a233e61fd272
SHA1

5932925acb9f207510c4f1a7a391fd1f1bb914ae
SHA256

683316380205fd8f5ae507c6ff81e9a500773f078f407cfcfde38e6c5b02ab7e
SHA512

cdb6120b1905434b5a9671ec47a2f6e0b97b36ad0bb4d79271e59b589efdfc01809b367dee00ba490a1a32086b6583de4e01fd8764cca431153a82db0a785f41
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3v:bxNrC7kYo1Fxf3s06gZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023204-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4704	pissa.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 1408 wrote to memory of 4704	1408	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	88
PID 1408 wrote to memory of 4704	1408	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	88
PID 1408 wrote to memory of 4704	1408	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4704

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\pissa.exe

Filesize
37KB

MD5
11525143c0b0062662f8b82c0b500dd6

SHA1
d61d6b03aaf598258316a14855da5de5830926a0

SHA256
94dd2f0cc92ac90d0fa89e178a51f812b77f6546c992df3b484eb7a8e612db65

SHA512
b27c2c70ef0d2f5568c291c2403d315c8f565b619af7e67dabc1a9a5f5102e89cfd0bdf17658ee213d118577392f13ecc31ea297d754df457539cdf637071ac1

Download Submit
memory/1408-0-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1408-1-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1408-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4704-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download