abefa653ed9fda5295b2bc25a8562932ebf229706e6b6a454f19442fc07d2fa6

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/02/2024, 15:50

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General

Target

2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe
Size

91KB
MD5

c40855b1903b58de8c4a7e8644380109
SHA1

befb8bdb79f73cbd5f764db91200b8090c05c00a
SHA256

abefa653ed9fda5295b2bc25a8562932ebf229706e6b6a454f19442fc07d2fa6
SHA512

7fb359b31416992a2efc1feab584f1744fa3ffc2b9e6bff51355b28d3ead1a3afbd4c8a03d21d7212a621bfe73ae36b5e1fe153c7a515b1f177afa862eaca85d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgwV:V6a+pOtEvwDpjtzk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222c-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001222c-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2300	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1136	2024-02-25_c40855b1903b58de8c4a7e8644380109_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 1136 wrote to memory of 2300	1136	2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe	28
PID 1136 wrote to memory of 2300	1136	2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe	28
PID 1136 wrote to memory of 2300	1136	2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe	28
PID 1136 wrote to memory of 2300	1136	2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_c40855b1903b58de8c4a7e8644380109_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2300

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
91KB

MD5
53bdf0b95947044396c8ea09ae27f3c5

SHA1
6fb772e6066b561b7f9ac5da779bf6b826faf8c2

SHA256
c331a9d7fb128c98bcc885090c95625c9184a5190156d09f2ad2acda87f054a1

SHA512
ffe73304d1a838ff6977acbdce01b1b5cbdfca9a927bd5714cf5a1f47c43a04dea910fcb3438b5638d62ebaa24954ce95f82f47f43b8bea8003d5e1df814c0ed

Download Submit
memory/1136-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1136-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1136-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2300-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2300-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download