cab2f4df0eed1aef3785366c879cde4f6383a583753554cdefaef431b27ed934

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 11:29

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General

Target

2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe
Size

84KB
MD5

281469d4b30d71178ad6d00def56fc90
SHA1

9550185e485371298773887057e19e8d39ddd25d
SHA256

cab2f4df0eed1aef3785366c879cde4f6383a583753554cdefaef431b27ed934
SHA512

68af799a051139d8b9849c8cef977014f813192119dce64f3ac0aab50f6de993e745d91f4ac1aa80a713e937aaeaa8757131e1c3c7bdbc54c01f16af0ca6892d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLQr:V6a+pOtEvwDpjvpZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_set1

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	2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1776	asih.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 3012 wrote to memory of 1776	3012	2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe	87
PID 3012 wrote to memory of 1776	3012	2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe	87
PID 3012 wrote to memory of 1776	3012	2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_281469d4b30d71178ad6d00def56fc90_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1776

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\asih.exe

Filesize
84KB

MD5
14b7df63e17590e678658181fb957825

SHA1
69d147e9e9e931f482a7fffee4d2e7b70e05748e

SHA256
681f15b587e244e2477e306123fea1e7504263ce47f4840aa3868294da41250e

SHA512
a9f6f372d58d705dbc5031340f92fc79177b3359120ccef7f103659aaa9875bc3c0fa26168af37f18b15780044f403085bbedd2142c6c4afbf191834e08b96db

Download Submit
memory/1776-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1776-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3012-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3012-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download