1dd884239edc4ba182824ff0cb7cfa536edccfb72e392e73c5a6ca055e59c86b

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 14:07

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General

Target

2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe
Size

45KB
MD5

d41fd9c3bd01375c49feaba0a57d568f
SHA1

bc44e88d3f1ddc12db74e26a3268eb0f373197b3
SHA256

1dd884239edc4ba182824ff0cb7cfa536edccfb72e392e73c5a6ca055e59c86b
SHA512

abf264336b550336797e2bdd29431821f84bb382cd7f4d84aa792a19f06c20cd8b5ba8402c9faa1810f6d0558c1a6d0a2dcebde732b8f4cf268ed61366c4fbe5
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqRoN6N1:bxNrC7kYo1Fxf3s05rwxbFvN6N1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0004000000022747-12.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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3040	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 4196 wrote to memory of 3040	4196	2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe	88
PID 4196 wrote to memory of 3040	4196	2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe	88
PID 4196 wrote to memory of 3040	4196	2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_d41fd9c3bd01375c49feaba0a57d568f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
45KB

MD5
9d274e52bf15dd0e77b2e1b80b8a4b1e

SHA1
bec24145e1fe22c9a1377b8835402b75b943c0cb

SHA256
d5e6b6c24fb21ae66d0211c1b859c4b39447e9f38e153297f7d9b7ce8c854dee

SHA512
aff8d8186f47297521b2076631ba9b3beee051960e277bc435c67ad58e64579157a1771ec18f222f2f7ccb5552183e5649510b72875a4d256f449f7e7eb56c52

Download Submit
memory/3040-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/3040-22-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4196-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4196-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4196-2-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download