82fc719da5e64627a0be58666e4772c66ce6adb6b3d2107ffc090f03feb5184b

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 22:25

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General

Target

2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe
Size

35KB
MD5

62461c735c70cd54fd6aa4de5eedcc97
SHA1

7ce2982d28af84d8d237b167b56e4b96f2c9d5d3
SHA256

82fc719da5e64627a0be58666e4772c66ce6adb6b3d2107ffc090f03feb5184b
SHA512

fb7282d4dcca91b4ad90832d4a9c62f668ea5213ce0eea8a70ce1798ec919e754f2555884e38b95b030f624bd7d99015c77e047dd37083aaca6b796374fdb427
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5O7:bxNrC7kYo1Fxf2rYe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233fd-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4544	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 5072 wrote to memory of 4544	5072	2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe	82
PID 5072 wrote to memory of 4544	5072	2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe	82
PID 5072 wrote to memory of 4544	5072	2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_62461c735c70cd54fd6aa4de5eedcc97_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5072
- 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:4544

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
35KB

MD5
19a163a35df74bda41f403588132d5f2

SHA1
85536c56132dbddb89619a8e23d9570092629def

SHA256
346b47dbad28dc02342a0526047a9e877ef22c1f0051f71e8915cfc3ec2e988f

SHA512
356ec1db045d78f124c380b3e5c1d7d69eb5d2a85c41c6ffc0c5ff4a866d569f5603fac177bd48174cb24733e363afa7d016d586d8c88c0514812b5335d04850

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/4544-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5072-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/5072-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5072-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download