e20ac32c495cc014dcdbd15de99a48a0c1abc91c5355cd81478a80844558bfe5

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 07:25

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General

Target

2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe
Size

51KB
MD5

148ad0799e15dc13e924c3e1170f5904
SHA1

9138e7b3b40fae135acbf13f75b22c99b027ed67
SHA256

e20ac32c495cc014dcdbd15de99a48a0c1abc91c5355cd81478a80844558bfe5
SHA512

31893939caaf16eb4e3a57c7f71183ff167482d430e77f8ae939302c9e6b4c6212c9305e7b478352940e35c5ec2f94d7eaec3710189807341cc30ccda386fa04
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGfSe:79mqyNhQMOtEvwDpjBxe8GGfV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2036-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000013adc-11.dat	CryptoLocker_rule2
behavioral1/memory/2036-13-0x00000000005F0000-0x00000000005FF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2080-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2036-8-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000013adc-11.dat	CryptoLocker_set1
behavioral1/memory/2036-13-0x00000000005F0000-0x00000000005FF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2080-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2080	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-05-11_148ad0799e15dc13e924c3e1170f5904_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 2036 wrote to memory of 2080	2036	2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe	28
PID 2036 wrote to memory of 2080	2036	2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe	28
PID 2036 wrote to memory of 2080	2036	2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe	28
PID 2036 wrote to memory of 2080	2036	2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_148ad0799e15dc13e924c3e1170f5904_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2080

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
51KB

MD5
a3d8f99d8cd846ff023336065911328f

SHA1
12c35fb0a2e55f05f33a510326be9e62cdcdc88f

SHA256
e29756cdb9ffb942308c93daf3182dd85a8588350b72d540198e824b39042468

SHA512
71da866a52be34d9ee04b2822ffaa410546786622d25e8c8087aea1a4122f91a43ef874d3a3bdf6f90ec07c87ae1aba11c11d79a70ff44e316e27316ebf7c229

Download Submit
memory/2036-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2036-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2036-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2036-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2036-13-0x00000000005F0000-0x00000000005FF000-memory.dmp

Filesize
60KB

Download
memory/2080-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2080-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download