aa4e68f37f862bafd449831a548c5928b7a7ad34e25e22def2d9a02d5b62aec4

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 01:39

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General

Target

2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe
Size

46KB
MD5

40e94b4ed3591996b7ac9e47495397e6
SHA1

65fb4cebbbd4744544db8ed909d897de7e47a441
SHA256

aa4e68f37f862bafd449831a548c5928b7a7ad34e25e22def2d9a02d5b62aec4
SHA512

c9a6fc794425df3ec3d237e65ae534a617b754dffe42bb2c01316e86b51ddf20d37b7f1029883ec4809ffcfd1b2e50266e7922a83460ddb37cda42bb348f2e2a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJ/:V6QFElP6n+gMQMOtEvwDpjyaYaFAh32

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2364 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe

pid process

1700 2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2364	asih.exe

pid	process
1700	2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe

description	pid	process	target process
PID 1700 wrote to memory of 2364	1700	2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_40e94b4ed3591996b7ac9e47495397e6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2364

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
46KB

MD5
856c604f2c5633ae8684cb4ce6b376e6

SHA1
74d1d9513ae93943156b49c74c42946c54ef19d1

SHA256
cb26777c2fb4c58609c84b3108e101260af820126fe3362dbbcb4ea2f1f427d6

SHA512
cc8ff7049f1612e0141a33029a290ffb9a25d03464ef92dc990f45d7ffc783d7fe9ecf1fe5db9c4eb24ba3d09597be7cc0430a369e045e8687994af9fac6acff

Download Submit
memory/1700-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1700-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1700-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2364-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2364-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download