8c56cbd42258b1b0047d55974ef45c25bbe9a0295d999df969e59b63a09b57f2

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 17:43

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General

Target

2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe
Size

47KB
MD5

8a1a29c28d8485c750cba844c9b8239c
SHA1

ddf2d2b6b635894ec0f62bcd47d56d29801e91de
SHA256

8c56cbd42258b1b0047d55974ef45c25bbe9a0295d999df969e59b63a09b57f2
SHA512

49f384ac4fe1c9f7ab43261f4c6d4f839e1a81960370b48c265a20ceecaa6deedfecc54671331e8e28ea071cbe085401919fb20dd1464324e0923fc664f5a83a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X30E3az:V6QFElP6n+gMQMOtEvwDpjyaHaXmz

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

2376 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe

pid process

2236 2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2376	asih.exe

pid	process
2236	2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe

description	pid	process	target process
PID 2236 wrote to memory of 2376	2236	2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe	asih.exe
PID 2236 wrote to memory of 2376	2236	2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe	asih.exe
PID 2236 wrote to memory of 2376	2236	2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe	asih.exe
PID 2236 wrote to memory of 2376	2236	2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_8a1a29c28d8485c750cba844c9b8239c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2376

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
47KB

MD5
fdde5a93a09c5a1606d7db3dff9c8921

SHA1
82defa106c155846c38fc70074e2d8a51ddb1cb3

SHA256
c024796f483a547a000ed07fa7864ff585836726072091a0e41c653203bd6783

SHA512
23dd44a781d4bf7df369d451bcb5c16a4d9d1d85e65f55e212a2ad10ec75a95bf129ee0d865a09ea6a4937e242493fa3b039889d5e09139d92e8775d0825741c

Download Submit
memory/2236-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2236-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2236-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2376-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2376-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download