12439bfc474adb3f6d3439f9a157225c27bdc38a6174a16ed597815de4cbbf9a

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
29-05-2024 12:32

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General

Target

2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe
Size

46KB
MD5

c4a73623176b8f8f88f7ca41e20635b9
SHA1

a9f0fd11d70a69b71b0c10a69a4073020af3cc70
SHA256

12439bfc474adb3f6d3439f9a157225c27bdc38a6174a16ed597815de4cbbf9a
SHA512

03da611281037f1e550bd841af92cbfaaaf07ed0ba322baa96aa795540fbaed06d217fe36bb6a6bec113bcf6ab4bb2f9b62dea2b538331861e3fa9644aae892a
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsJmzB:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3Bd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
316	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2888	2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_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 2888 wrote to memory of 316	2888	2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe	29
PID 2888 wrote to memory of 316	2888	2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe	29
PID 2888 wrote to memory of 316	2888	2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe	29
PID 2888 wrote to memory of 316	2888	2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_c4a73623176b8f8f88f7ca41e20635b9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:316

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
95f3127d5ca1845de70243cda927d41b

SHA1
3bb8099ae006d40b6b49f89ed20c4f905079037a

SHA256
8e828d95f5ae8774dbee9f74ec4333431dd64c45eae38785ec5a265241117da7

SHA512
bddf5a2a1c78ea3efb8a26f51899da92d1713fe419a68c3cab76c0ef163a80290bde7403509e3c51466aa70cc3aa5fc3bb30d7da6739c6bfddf35460cc5a22f8

Download Submit
memory/316-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/316-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2888-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2888-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2888-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download