8b077e3fa4b4e018d4dbf05f8a8cf6a5b08a33cf0088544dcea73ee35c4fe666

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 13:36

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General

Target

2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe
Size

40KB
MD5

e572d36038ff8d49a48978522cb5582d
SHA1

1c70a13dd2dce3e9627bd0149ec8713bb8f3d65e
SHA256

8b077e3fa4b4e018d4dbf05f8a8cf6a5b08a33cf0088544dcea73ee35c4fe666
SHA512

ac3d043c926b364793d85b78745d84b54eeb11df764dbeabba04345fad7d2e8afca1110f06a666f7fd7eb58d287ed4282e7e017d921e3f9c8459154c8e76ebda
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFo0:bxNrC7kYo1Fxf3s05rwxbFr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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	2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2332	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 3860 wrote to memory of 2332	3860	2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe	88
PID 3860 wrote to memory of 2332	3860	2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe	88
PID 3860 wrote to memory of 2332	3860	2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_e572d36038ff8d49a48978522cb5582d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3860
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2332

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
40KB

MD5
ef8afe4067cbb652e047a1abed31c560

SHA1
08c9de9f6f14635859340a6987515e4def8eba28

SHA256
80637f77601f85ac22503aba60ce466fcc642373dc00ac358a9ab20718288831

SHA512
61fa3926490d519a7d73f40a915bd5436b1af14b1a2283a813040da6bec3a6078cac99321015b12e7e7a16c2a89e53f3a92ac0d695217315c896bf29ae3f3b4e

Download Submit
memory/2332-17-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/2332-23-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/3860-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3860-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3860-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download