b21f6c1f71a98c606ce25f7e6b21ce4804df8965f4519c59a363f8b6cd2f6d14

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
16/04/2024, 16:28

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe
Size

45KB
MD5

53b48bfffeb6e921bf93d1a9b4213787
SHA1

74b95c80831b445824c671c9808dd599a1bab9d7
SHA256

b21f6c1f71a98c606ce25f7e6b21ce4804df8965f4519c59a363f8b6cd2f6d14
SHA512

d5e6ef8dcc29f408de463df9a9c4975ce5c66fe610ccc3f8975ee8752b71ecbe199f6fe47f84e15d5b2886ac101f3a6bbebfceed110640fcc8e82e9110bdd10c
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsB:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3u

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1784	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1928	2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_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 1928 wrote to memory of 1784	1928	2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe	28
PID 1928 wrote to memory of 1784	1928	2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe	28
PID 1928 wrote to memory of 1784	1928	2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe	28
PID 1928 wrote to memory of 1784	1928	2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_53b48bfffeb6e921bf93d1a9b4213787_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1784

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
45KB

MD5
59e8f605656180189afe42e7c0a3a341

SHA1
4bf52cf2b601bf74024526772ed32d6b7f7934bb

SHA256
a6fd75ca365aafb2d9fdaede812cddd139bfe21116326ac6fd3b75a3a4cea0c4

SHA512
3ffe185c33ba73b7abe078c6457380f278b9ad2f2468bb8210cda112a23d884bb5221fc1623cd216b3eea44390880c13401fbced6a61bcd8e981097891181b23

Download Submit
memory/1784-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1784-16-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/1928-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1928-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1928-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download