013b618ca206d38dfa4999c0c28010cf079921ec2d0a4adfecebbcb737848a17

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 05:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
Size

71KB
MD5

de78be6e204a16b6832f0721f8de4faf
SHA1

61d087e5f2b677a8b801bbd30b9123825c2c388f
SHA256

013b618ca206d38dfa4999c0c28010cf079921ec2d0a4adfecebbcb737848a17
SHA512

15550d56bbfe9f9cd3e7f00d0c0f7d6d762295b67963c49d0cf366e5c6323ab06da29502e485c4e6094e6c023ffe7ed99a59fdee5a4a86b271ac782719eec7a9
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU1TB:DW60sllyWOtEvwDpjwF85h

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014395-11.dat	CryptoLocker_rule2
behavioral1/memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014395-11.dat	CryptoLocker_set1
behavioral1/memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2160	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2024-02-19_de78be6e204a16b6832f0721f8de4faf_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 2968 wrote to memory of 2160	2968	2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe	28
PID 2968 wrote to memory of 2160	2968	2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe	28
PID 2968 wrote to memory of 2160	2968	2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe	28
PID 2968 wrote to memory of 2160	2968	2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_de78be6e204a16b6832f0721f8de4faf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2160

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

Loading Replay Monitor...

Downloads

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

Filesize
71KB

MD5
5b97d575556289eabb24ec3e85a40794

SHA1
f6d331ae92e446bb71ef7aa58c36eff0d9045d61

SHA256
04df6e1f1f64e6acc1de7e2b5249b52c7d066f39a787fbd558d571d93d34da40

SHA512
33c13a4c7f54611fadd5f32dcea61077c498651d2f2eaac284feece3978f61705a16dfbc8fef6fdb0bd55e99c7877cf9763ee63352bc7401e1b9ce4059c93739

Download Submit
memory/2160-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2968-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2968-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2968-3-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2968-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2968-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download