e0e1f6709ef015ef80f0e1bef8c84e725c6220d0c91940386e82399b2dd58a16

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 01:16

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General

Target

2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe
Size

40KB
MD5

b2b681a0e8fc75c7688535e7cb0350d5
SHA1

596be828ae84fed065c1d493fc07317d4e193f91
SHA256

e0e1f6709ef015ef80f0e1bef8c84e725c6220d0c91940386e82399b2dd58a16
SHA512

f1f85b862a95ef9109bcf0d29563d49aa0c01b667e6dd0d02266ba0fffc277711730153ac3f4ae9a3c4a39303dc6330742113891b80e49b8d7c654993768b75a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axRVZoW:V6QFElP6n+gMQMOtEvwDpjyaYaLt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014909-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014909-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2884	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1664	2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe

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

description	pid	Process	procid_target
PID 1664 wrote to memory of 2884	1664	2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe	28
PID 1664 wrote to memory of 2884	1664	2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe	28
PID 1664 wrote to memory of 2884	1664	2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe	28
PID 1664 wrote to memory of 2884	1664	2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_b2b681a0e8fc75c7688535e7cb0350d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
40KB

MD5
2ae1c4094a6af78086bc89e92c92cb8c

SHA1
53b637defba4485605e8014223f7d2cee692871c

SHA256
301ee263e74ece5c91844fd10d0529b1debfae84d086f700e37514f7bfc32099

SHA512
b4ddc09d9d7a0d613f35974a2f8c2741883e02c161e08c49da4da9bf8ac436c0db254fc68fbc443b79be2460f57019caea65126b498839ff30a910b3a74767bd

Download Submit
memory/1664-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1664-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1664-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2884-15-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2884-16-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download