11da47733f8322ca55535ef489007d8be1cc51cbffa9572d4b51493595d7ccee

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 03:41

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General

Target

2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe
Size

75KB
MD5

526a67c417e9d42022059175319b6376
SHA1

d6522631a7836c8764e32c40555052327b146b19
SHA256

11da47733f8322ca55535ef489007d8be1cc51cbffa9572d4b51493595d7ccee
SHA512

8c9351d0fd6d8ea7389069d777799e1ba2706d1261be46bf5d10290a2c890273e645acacca07eff2379f2e5006f9c3e80ed0ae82806a2051111f5ce7d5b2d24b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siMOV:X6a+SOtEvwDpjBZYvQd2b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012254-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012254-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2796	2024-04-17_526a67c417e9d42022059175319b6376_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 2796 wrote to memory of 2012	2796	2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe	28
PID 2796 wrote to memory of 2012	2796	2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe	28
PID 2796 wrote to memory of 2012	2796	2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe	28
PID 2796 wrote to memory of 2012	2796	2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_526a67c417e9d42022059175319b6376_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2796
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2012

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

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
75KB

MD5
b470200e94e12736697693cacf820354

SHA1
6e979a80843f57123445e1275ff157923bff0f67

SHA256
74d58153f3ed943a7115236769b014d92088473b30233f30b9011645db111633

SHA512
cc159287ac08ce602e9a2287eb9eb0d5a266c16f05d05a472f83eebe6b04400b72188871d5d6a15a711ce2aeb26e3fdb9d670c606acdb8bfa08742a1d5d49e85

Download Submit
memory/2012-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2012-22-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2796-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2796-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2796-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download