e37ca93f24d36891aee72fb8a4306af93a3736ef940aad88314945cffed9be57

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 13:54

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General

Target

2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe
Size

38KB
MD5

b99122b947cba750f7628c37ee74a9da
SHA1

c514681a9c9cda3070d6b0abfb256fd74d57ba86
SHA256

e37ca93f24d36891aee72fb8a4306af93a3736ef940aad88314945cffed9be57
SHA512

afe8c214553e94002f213a3aef96ae4c9dea08dbbde0fc560b91482de228d656626d6dc38ae30f465f6a5546fea8f6e3fb4da8b716aee1b21e787ec8ee0d97e9
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3Z0:bxNrC7kYo1Fxf3s06gf0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023215-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1332	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 2396 wrote to memory of 1332	2396	2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe	90
PID 2396 wrote to memory of 1332	2396	2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe	90
PID 2396 wrote to memory of 1332	2396	2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_b99122b947cba750f7628c37ee74a9da_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:1332

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
38KB

MD5
3cdecddd1e559c854e653c072187a9cc

SHA1
23c37c7a52413d909e3ccca83bdeda51fa23e2d4

SHA256
099ddf0f255e350699dea29f32ae69fe4aacf2cdc0b58414a1262c015bafa776

SHA512
b302736c158037199d51023453d1a688ab9ca7a9557a3ff95b6dc2a3b9253b3b6f12d1f10774af8c91038a58566c1d01880100d93465a61cd23af0a41d789067

Download Submit
memory/1332-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/1332-18-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2396-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2396-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download