50e1a0f563d7bf94d23074e5897c64200c0fc1ade302666687881eb3f42bc069

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 02:36

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General

Target

2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe
Size

44KB
MD5

a0b1f7e9817d2cab7fa4017e397e6556
SHA1

6a4403aa2a01d2b863baedf0c83577a7fad133b0
SHA256

50e1a0f563d7bf94d23074e5897c64200c0fc1ade302666687881eb3f42bc069
SHA512

a94d8f97683ace17ec2b4ac6da0f6283eafb146c5c773782bbdda07c04bb09e1fa417d580d4c3b3ebad2c0b0c15cddb8fcae64e3db2fb2dac434c77391ae4557
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hm:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1860 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe

pid process

1392 2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1860	asih.exe

pid	process
1392	2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe

description	pid	process	target process
PID 1392 wrote to memory of 1860	1392	2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe	asih.exe
PID 1392 wrote to memory of 1860	1392	2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe	asih.exe
PID 1392 wrote to memory of 1860	1392	2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe	asih.exe
PID 1392 wrote to memory of 1860	1392	2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_a0b1f7e9817d2cab7fa4017e397e6556_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1392

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1860

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
44KB

MD5
77979593528cf9706f1af39176260a19

SHA1
aacad918a316fc48ce3894fa2f4f4c1c03a3e976

SHA256
2bfb52744382d6233eaa27ee28f2d0a97c08ba3d6ff6b0caeeb6e6e61665080b

SHA512
7c36fe97ff91fd63274241eee3b64b0fbd253415f76e50177d351b3d8820c312e93bb41e34c7dda379faeec3faf1c78c3e9b79f63b09b5420e4b113f447754e8

Download Submit
memory/1392-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1392-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1392-8-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1860-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1860-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download