062b021e647c46610efc3172452b4006afcf992b131c01aedccd06543845847a

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
20-04-2024 04:44

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General

Target

2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe
Size

74KB
MD5

ac7f9fb476e82a0272c4f41768f8d7f6
SHA1

f03e5689695f2190c61a501e306d9439f706ff4c
SHA256

062b021e647c46610efc3172452b4006afcf992b131c01aedccd06543845847a
SHA512

849af5a0c6320944c1f17009cdbcb323a85d4167a3660036c30031ee69b364497f5810d49e392c350e3c54c06b851805afb6594a85d83414a8ab4a1ab278c3df
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHs9:X6a+SOtEvwDpjBZYvQd2O

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012257-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2176	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1704	2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_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 1704 wrote to memory of 2176	1704	2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe	28
PID 1704 wrote to memory of 2176	1704	2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe	28
PID 1704 wrote to memory of 2176	1704	2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe	28
PID 1704 wrote to memory of 2176	1704	2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_ac7f9fb476e82a0272c4f41768f8d7f6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2176

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
74KB

MD5
79aa43cb9625e40a4dbb760a8955113c

SHA1
63b54d87c60f84cb5ba30b18cb20ec0deed7c37c

SHA256
3c421d032990e3e5a3cedbdaace68a773d4373479376d40c550bdc46538016dc

SHA512
74304de7f87924107218f826759644c6b59151ad400cd46b967ff39c845c74b691d2deac867b09fe238021dcc7b081f12db9759ed5919ab270fd02f41dcbfd3a

Download Submit
memory/1704-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1704-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1704-4-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2176-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2176-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download