e21370a46f67e9dbb3b7aeeba18bf2974d71c46f85e16e62de2fd96e97f76081

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 16:54

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General

Target

2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe
Size

98KB
MD5

f0112997142bfd56da238ab75dfd89c8
SHA1

2d6aeb9f0a10a783fdfc08d040a7b947b4c5ce76
SHA256

e21370a46f67e9dbb3b7aeeba18bf2974d71c46f85e16e62de2fd96e97f76081
SHA512

79b76a323f06f51872839e44befd36dc9b02f9abed258f7ad23b0ae38cce1df6089d8558a02861029d13ef8f607001ab870ceac02bd3b1cd76762ab28db1cd67
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbX:V6a+pOtEvwDpjtzH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fa-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fa-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2936	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1848	2024-02-23_f0112997142bfd56da238ab75dfd89c8_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 1848 wrote to memory of 2936	1848	2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe	28
PID 1848 wrote to memory of 2936	1848	2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe	28
PID 1848 wrote to memory of 2936	1848	2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe	28
PID 1848 wrote to memory of 2936	1848	2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_f0112997142bfd56da238ab75dfd89c8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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
98KB

MD5
4fb95763b982f02efb7541b17987501e

SHA1
cf787144dbb148518fd263dcb20008ec583c7807

SHA256
595a668e8380e076a9e0c29dae3cb73b4014210efabb060c423983314e8db5c0

SHA512
61454eb89642b92d5662d2ae586c9d48ca5bffadc316dce7916af5a667fd5758cc3e8478d9dd052c287413c5071d217fea418ad055e1c1c88faa9cb55877231c

Download Submit
memory/1848-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1848-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1848-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2936-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download