cb40e57788298f5a5f670bbd66c62001e0fd91cd0a77401a5043c1f7887ad45e

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 17:21

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General

Target

2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe
Size

48KB
MD5

a547ee70522b5f36c97dd2b62bef643f
SHA1

d29acaba6e5a4e8a238130cb2a1404c41ee330d5
SHA256

cb40e57788298f5a5f670bbd66c62001e0fd91cd0a77401a5043c1f7887ad45e
SHA512

3ddba0efc652fb291b7e5bd352037389801aabb5857d8e6e4d0ffbf7309af0c8561aa45f9c03f46f7c14d13ac5068c8512bdb6e2ffccb1ae412a10168bda52b4
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakNMw:V6a+pOtEvwDpjhw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1640	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1640	1720	2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe	28
PID 1720 wrote to memory of 1640	1720	2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe	28
PID 1720 wrote to memory of 1640	1720	2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe	28
PID 1720 wrote to memory of 1640	1720	2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_a547ee70522b5f36c97dd2b62bef643f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
48KB

MD5
4997c3e15167b39bce1a7916e615791a

SHA1
aaafb0b9ae2c4bc8ca5a5c4b205ba1a57661dda1

SHA256
8878491b08dde5b6a9daf98e04ae44a001f44fe26ed114c76404e1b8900bae5e

SHA512
086ebf2bc9bab925c86a1e290fdff3445d83dda280c2f3215669a18beee15e0e8c774a171a70bac70374181fcbbdba63f1ce5264da71db9a66a6a36cde10a0f6

Download Submit
memory/1640-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1640-17-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1720-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1720-3-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download