6292df340d12698b1ef9527561fc21b1662eea4678f296329629958e3d7163e2

General

Target

2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe
Size

116KB
MD5

7dd94bb2aa9e5dcdea35b36ed92d235d
SHA1

65e5496fd0c120e7781049f645f1991b37903e54
SHA256

6292df340d12698b1ef9527561fc21b1662eea4678f296329629958e3d7163e2
SHA512

0619e57cf120ebd8dc2905be62129ecc61b7dee0721cfec0ab4fb2d9beb576de956c53411df49005c7c1adce2eff513c4b1e10e058f6e7122353ed8c8bd737e7
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp01PVg:z6a+CdOOtEvwDpjczQ

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/1992-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2312-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/1992-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2312-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\asih.exe	UPX
behavioral1/memory/1992-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2312-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2312 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe

pid process

1992 2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe

pid	process
2312	asih.exe

pid	process
1992	2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/1992-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2312-26-0x0000000000500000-0x0000000000510000-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:

2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe

description	pid	process	target process
PID 1992 wrote to memory of 2312	1992	2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2312	1992	2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2312	1992	2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe	asih.exe
PID 1992 wrote to memory of 2312	1992	2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_7dd94bb2aa9e5dcdea35b36ed92d235d_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:2312

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

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
117KB

MD5
96c34e5333466dd1cb93f801a6c00dc6

SHA1
bab3c4aae871c2878a36c2aee820b66c8997f241

SHA256
25e6911be725dc1259688ebb5ecfe807b0d11c77db46c0888fedb6b6fff54359

SHA512
f647b7def30b16d81ec3460f99041ab03458b716d6a0b373d14447c2a0ebb23286ffb687a49f8f77c273375d58418761c1a3330c18b94e18808308db4dd8973e

Download Submit
memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1992-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1992-3-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1992-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2312-18-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2312-20-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2312-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads