3e6ea4d1f3f929632a341436abf9db646fb9780c25786b9ef76807cda1956004

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 17:39

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General

Target

2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe
Size

43KB
MD5

ad2c5bf2abb453568eabd63cf284b255
SHA1

9fb5c65fd2b6f37401d0fcdf01cf151684d59913
SHA256

3e6ea4d1f3f929632a341436abf9db646fb9780c25786b9ef76807cda1956004
SHA512

96ef8238c0c20c493ceeac20fd7c93d819b1d782bcbba877af5b87f1495c10b4e2e8373bd27409aee81564a1e92b84e9ca44512f79ac918996c6f2e6563681ee
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YO6IL/:V6QFElP6n+gMQMOtEvwDpjyaYaFAz6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001226e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2404	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2256	2024-02-19_ad2c5bf2abb453568eabd63cf284b255_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 2256 wrote to memory of 2404	2256	2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe	28
PID 2256 wrote to memory of 2404	2256	2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe	28
PID 2256 wrote to memory of 2404	2256	2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe	28
PID 2256 wrote to memory of 2404	2256	2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_ad2c5bf2abb453568eabd63cf284b255_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2404

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
43KB

MD5
d5a2a26409d10ffb0fb4b7c6bfbe6e37

SHA1
5805ebe42e621b06f26cbd3ca86dc71372e002f3

SHA256
0ed39b7fa665f499e29e1b74f258e1f7f40c5bd5c7d74d1ea427195c3635002a

SHA512
c898cfe49f329b18c5dd1485a152afc5184f61de4f1651b8f4d12082548ef5f800084270a3c0fd675bdd2e52b432d8858e5c6273891badea9c98db0de81109eb

Download Submit
memory/2256-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2256-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2256-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2404-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2404-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download