44bb6c2c0fbb825652c4cb6084beb28a5dc7cfe16615582ce8906f00e71eeefe

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31/05/2024, 02:34

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General

Target

2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe
Size

43KB
MD5

2d10796f998dfe775a540b0740cdd284
SHA1

3b751182593bba89cbafaf2dd9bba5410d894f49
SHA256

44bb6c2c0fbb825652c4cb6084beb28a5dc7cfe16615582ce8906f00e71eeefe
SHA512

3d98f07eff9fb9a435a03d586e00fa1752a9e1180a2dd6b09a71d6598560e09c0444cd5d438817aef808e8534ca94651998efb110d2a96cd44b6887fd1163875
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3h6H:bIDOw9a0Dwo3P1ojvUSD79Ro

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000500000002326f-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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3464	lossy.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 1072 wrote to memory of 3464	1072	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	81
PID 1072 wrote to memory of 3464	1072	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	81
PID 1072 wrote to memory of 3464	1072	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3464

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\lossy.exe

Filesize
43KB

MD5
1ba44bf7ae318fe34e6f3fc3a29102c8

SHA1
df236a8cec9b81ac53108116211d9a3f949c6b13

SHA256
206e990279f99fc38766b73a28bf89c822670c896e1acf9bdf27b4fa348b0315

SHA512
a5b75ed1bc7a6b80a84c76c142ca7c27903e92166ce12ac13c3f41c04fc51a15d3408f992ab0183abfef9d27458d0d9df616eb2653dca67191de0b74e6e21d91

Download Submit
memory/1072-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1072-1-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1072-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3464-17-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/3464-23-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download