be96e74b5f6b65dd6f86181d72daac24b7489f3d363542efb9302c2cc0c21018

Analysis

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

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11-06-2024 08:32

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General

Target

2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe
Size

46KB
MD5

517a2aa2fb4fa8370ed033ed0158ef3f
SHA1

d83987040c51d708c67fc26bec4371617ba4a5c8
SHA256

be96e74b5f6b65dd6f86181d72daac24b7489f3d363542efb9302c2cc0c21018
SHA512

55d62364115453d228050b024a5105dd547f14c70fdd9fd4c4d2e882cfa7383a9eed638578534662467ed200c1630042a2a9538a40fbb983c265b634ff89178c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9HxFWz:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtjY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1612	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 2216 wrote to memory of 1612	2216	2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe	82
PID 2216 wrote to memory of 1612	2216	2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe	82
PID 2216 wrote to memory of 1612	2216	2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_517a2aa2fb4fa8370ed033ed0158ef3f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1612

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
46KB

MD5
eb28a947ca311ede4e1731dd1220be79

SHA1
70815a12b757a8d7b011de6634a6de99aea413e7

SHA256
e5f3ca4b40f436f3f780660c07bf0c25218421627c63eaf291dad722481140ea

SHA512
022e3a822d32efa66730b948ba6e491d70892aba5fda4acaee2158dbdcb8348630e4e94ea72b5e8ae1263fab895d288f157af0d41d746e6efab52336b1b479f2

Download Submit
memory/1612-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1612-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2216-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2216-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/2216-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download