a54e61553bf41d3c2744e24c6afc93c8ba1bff0a8fd5ffdcdcc7530589524fdd

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-04-2024 12:24

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General

Target

2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe
Size

77KB
MD5

0107c444cc1eef16ffcd4ca508f38cc6
SHA1

921f1ef5aad14a7f75e94a16c6afdbeeb30e0d66
SHA256

a54e61553bf41d3c2744e24c6afc93c8ba1bff0a8fd5ffdcdcc7530589524fdd
SHA512

b007e51f18ac07e90d527b0ae8f0d4f391e4b31b94742c288abf8c2f3b54b1cfe6f35506b7fede23aba7ea3b30e4823e6de197aacb88246c4eef39314661d98e
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yq9g:V6QFElP6n+gMQMOtEvwDpjyaLccVNluu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2392	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2864	2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_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 2864 wrote to memory of 2392	2864	2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe	28
PID 2864 wrote to memory of 2392	2864	2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe	28
PID 2864 wrote to memory of 2392	2864	2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe	28
PID 2864 wrote to memory of 2392	2864	2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_0107c444cc1eef16ffcd4ca508f38cc6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2392

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
78KB

MD5
8c3ae6400be49414180bcabd024a6bbb

SHA1
6fdc6bffbc992c381994cf98cdbde3b529daa736

SHA256
4d3fb0fbb83a3ccf87344e0d4d84be84b2982301a58ed488f14ca61e1bc4ab39

SHA512
c4518dc7cbf7acfb36f52d330712fc09d84d569e3c76b15b10f76ba8aa991184067c1d4c03db06fe0e2ac58d04b8b817f3eeef8b81d9aac9c906b6e8d6239500

Download Submit
memory/2392-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2392-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2864-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2864-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2864-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download