bd6284f59cf0719e4a0d4b2636e845e5ad0169345c82c1af43d8ed4c04bef8d8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 17:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe
Size

51KB
MD5

bbd9a0e696b96270d4aedbd652c8927c
SHA1

1560eb72716951ccf7fd38e44066029b0a9f2b12
SHA256

bd6284f59cf0719e4a0d4b2636e845e5ad0169345c82c1af43d8ed4c04bef8d8
SHA512

92a7a92f651f60e7aa9f9b8e37127d5d2769de8089162b92d66f538642544d033bc7845eb6e24a5607002dea7ed7341230892c08df04be5fa526895bc8c7104b
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRw:79mqyNhQMOtEvwDpjBxe8TpXRw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2644-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2644-16-0x0000000002480000-0x000000000248F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2692-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2644-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2644-16-0x0000000002480000-0x000000000248F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2692-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2692 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe

pid process

2644 2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2692	asih.exe

pid	process
2644	2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe

description	pid	process	target process
PID 2644 wrote to memory of 2692	2644	2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe	asih.exe
PID 2644 wrote to memory of 2692	2644	2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe	asih.exe
PID 2644 wrote to memory of 2692	2644	2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe	asih.exe
PID 2644 wrote to memory of 2692	2644	2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_bbd9a0e696b96270d4aedbd652c8927c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2644

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2692

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
51KB

MD5
ef261292d70baa5c67a400e12f98bbc8

SHA1
8a3abe82cae56b771b3685087ec02eff7449f379

SHA256
dc6246a5ceea928d004ea04181d37300b37ff5a7ca27b33f2c57feac8e3eb042

SHA512
f2e923a550f8537d949284265f952b92237b786e4c04850ddca3c9d6bc5eba385f23a46dd8687ccc44dc56e74ce08498b693d2260081e50ce0efb0e6c7582715

Download Submit
memory/2644-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2644-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2644-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2644-16-0x0000000002480000-0x000000000248F000-memory.dmp

Filesize
60KB

Download
memory/2692-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2692-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download