a0d9d0fc5288597e3cf64673dc53d6577f6056b2f822c1324931b509ec9c8654

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/04/2024, 08:56

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General

Target

2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe
Size

106KB
MD5

d825ee1f5ff96a0ae17360ceff1035f7
SHA1

03a2e66a67b600723bd93bb2743fcc6f298baa2f
SHA256

a0d9d0fc5288597e3cf64673dc53d6577f6056b2f822c1324931b509ec9c8654
SHA512

53df2835c126a963fbce4048b82c3f90b603d329ecc0a0f6cc9f58db443d6ee5bb1e0fcd9e12bc58bd0c1781d6d72917c0632fd0a89047ef8747f0699643dbe6
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbCJh5:V6a+pOtEvwDpjtzw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2340	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_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 2224 wrote to memory of 2340	2224	2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe	28
PID 2224 wrote to memory of 2340	2224	2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe	28
PID 2224 wrote to memory of 2340	2224	2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe	28
PID 2224 wrote to memory of 2340	2224	2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_d825ee1f5ff96a0ae17360ceff1035f7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2340

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
106KB

MD5
ff4e3c271794482429ed938a348fbf86

SHA1
01a6010a1d69c36d9d272b2f08922f231033fb25

SHA256
43a43216dd21bc9f2ae150f44bd988d036d5cfd30c1f524c3b9287d498de33a6

SHA512
639d5cf4aaaaf48285c3ab4be1c0bf6389c92268e6c037e1cccfb2a9442ba77fe62713432f246cb858942a12ab2e77fa31d78e4d91b658faf610af3c44127b8c

Download Submit
memory/2224-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2224-7-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2340-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download