b67696be44854032ae60560af45d0011ef103ec142b79ed955ac63e910857cbe

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 15:36

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General

Target

2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe
Size

43KB
MD5

6ae29102bfd181035d4097c3bcb00a76
SHA1

12bd4480fb731c722b403af57fedc3f6a7464de5
SHA256

b67696be44854032ae60560af45d0011ef103ec142b79ed955ac63e910857cbe
SHA512

7bef0970ede0f9b320934595aab1ee8ebaac0f1d550beb2c8886a30b04963081cfc1bcccb40dc49e0daa144b39efa29b87b05056f31486d28143282f83275a12
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X3dW:V6QFElP6n+gMQMOtEvwDpjyaHaXq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Detection of Cryptolocker Samples 1 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2696 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe

pid process

1992 2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2696	asih.exe

pid	process
1992	2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe

description	pid	process	target process
PID 1992 wrote to memory of 2696	1992	2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2696	1992	2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2696	1992	2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2696	1992	2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_6ae29102bfd181035d4097c3bcb00a76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1992

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2696

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
43KB

MD5
bfe05d15695ce9d9a497999046375769

SHA1
9829458bea44d9ec6f942bf42b63afcf16f9bb75

SHA256
69c7d5d9cda65c9668c1654f259e62bc2a47b31a96d50e710e46a041e56da253

SHA512
85b5fc14f03dbf1d851316e4cd7b0d3b33564bfdcae4bff70dd745de5c6a9ddf7681bdd0e5dc6ce64487ccb6392337bd54f90ff0211a593baff8bcd057f96257

Download Submit
memory/1992-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2696-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2696-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download