4e870cce5a3da7d38feff2547a204376e7fabdcd959ed4e8a4e1ae9fa06299df

Analysis

max time kernel
294s
max time network
341s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/01/2024, 22:39

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General

Target

2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe
Size

49KB
MD5

3dd3c068cbfdfe226280415c7add75ba
SHA1

2c93f086dcd82e7905a9b0d9da899eb05a50d2c6
SHA256

4e870cce5a3da7d38feff2547a204376e7fabdcd959ed4e8a4e1ae9fa06299df
SHA512

7eb729289b9efa0b8c95b159456beb29c6acd52da4cd47d7a596c91a6e36e0747a06ab785de209abda8dca4af77c24ed6696bd47c729f2c777c9886e95b6358c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklW:V6a+pOtEvwDpjd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0004000000004ed7-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0004000000004ed7-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
804	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1516	2024-01-18_3dd3c068cbfdfe226280415c7add75ba_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 1516 wrote to memory of 804	1516	2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe	27
PID 1516 wrote to memory of 804	1516	2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe	27
PID 1516 wrote to memory of 804	1516	2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe	27
PID 1516 wrote to memory of 804	1516	2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_3dd3c068cbfdfe226280415c7add75ba_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:804

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
50KB

MD5
1465b17c4a693a8cdce807416a1e97a0

SHA1
1a173dbc0ed4c6b3ca9490769090744de4ecd1c0

SHA256
e126427801f6f8b981e0b1414aa90b9991fc997b2ad045fc052989fca9d1d107

SHA512
4e57587c3123f53327292a98f78e6646875f682d4252e17a77f70178cc5ea750f349e8a0e27451674e182721e8908ff132132af491347899b0150043b15bad86

Download Submit
memory/804-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/804-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1516-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1516-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1516-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download