60802c5e89535593e4ca14baf2cd8dbe45d8b6be6c098d25919892b4d840333a

General

Target

2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe
Size

79KB
MD5

a72c5b38cb62e0dec5fe46c2a80e01ee
SHA1

3027a9d53c99586da78de04a29c01cd339956a9c
SHA256

60802c5e89535593e4ca14baf2cd8dbe45d8b6be6c098d25919892b4d840333a
SHA512

238af1f38a3bcff2628b447091ee229579bd91c6b9b78b9ff3625c60b52e6a4a7604d873a86b83ec3d2b34b415962da3a9002593778e942a08352a63c759d269
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdJcRb:T6a+rdOOtEvwDpjNti

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/1720-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2504-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2504-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/1720-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2504-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2504-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\asih.exe	UPX
behavioral1/memory/1720-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2504-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2504-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2504 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe

pid process

1720 2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe

pid	process
2504	asih.exe

pid	process
1720	2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1720-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/1720-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2504-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2504-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

Processes:

2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe

description	pid	process	target process
PID 1720 wrote to memory of 2504	1720	2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe	asih.exe
PID 1720 wrote to memory of 2504	1720	2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe	asih.exe
PID 1720 wrote to memory of 2504	1720	2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe	asih.exe
PID 1720 wrote to memory of 2504	1720	2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_a72c5b38cb62e0dec5fe46c2a80e01ee_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2504

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
79KB

MD5
63f817c25869bd642fca35724560ddfc

SHA1
e98f71abf3090bfbdc82e693d18d8be1be76c14f

SHA256
73b56d748dbe4d1d5f3d5f3b5fc32f8aef73894e1a0ec1e483ae59d48a7273b2

SHA512
91feed0b7fd42445171dec1f75a330d0e1354bafecc1acee94f02e8a06c4902440b536e82ea35b0c06cf2c87104cd5c0c244af974e5cef45f0d1805ab32c53e3

Download Submit
memory/1720-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1720-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1720-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1720-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2504-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2504-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2504-25-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2504-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads