95ada552342cb099ef6f2835c10db5aed07a8c8d3543c37d5ba6496da189bd84

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 23:48

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General

Target

2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe
Size

33KB
MD5

29f0c7aa81ef45e3d87c3cb9166f4924
SHA1

d447f1078ea71de8a959618761e5d729a209b8ae
SHA256

95ada552342cb099ef6f2835c10db5aed07a8c8d3543c37d5ba6496da189bd84
SHA512

fcf41de5da8c749307aa9bd0b82cc9959fdc9600c5ac9f0b352784b681ff40fbb1c5c029e86e006339a41bea1c3cbac313a35f1194d7c9ab374e69ee5ea75fe7
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5eN:bxNrC7kYo1Fxf2rYU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022f3c-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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	pissa.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1120	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 3396 wrote to memory of 1120	3396	2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe	82
PID 3396 wrote to memory of 1120	3396	2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe	82
PID 3396 wrote to memory of 1120	3396	2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_29f0c7aa81ef45e3d87c3cb9166f4924_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1120

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
34KB

MD5
7baf3a46f5bd4617ac628ab969f0a9eb

SHA1
59189474120d9708e98438945b0098cdc2b8c954

SHA256
8e9a73ed958eb9559ef9a271ab1a82b812b006375387b8c9b387b9fd9a98f4ba

SHA512
8944070bc0fb6396eeca353e6735f367a6e3a0937c65a4c93599950465c4d44e491993806771f39d4bf51c1cbae6acb0ab45ec465fa64e4df0aadedc51bdecc3

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1120-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1120-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3396-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3396-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3396-7-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download