b216af75edfc7ac3ed4690add5b6e80281f1b5a575cc1f7d30b742028243e9d1

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 06:29

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General

Target

2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe
Size

46KB
MD5

b5164236ec8f8b417ef49c51020b9ed8
SHA1

4c03d4909d2c036bef134345982552d6b3cd9d08
SHA256

b216af75edfc7ac3ed4690add5b6e80281f1b5a575cc1f7d30b742028243e9d1
SHA512

148927c416f45ea04bde0407b56a011de8c20c2fb61cf7ef5824730f4d756c18d6a41b8d1bad3ef344f63db3be65a3261723373a1c8141795f890602ad6624f8
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsP:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016a29-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016a29-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1752	2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_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 1752 wrote to memory of 3032	1752	2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_b5164236ec8f8b417ef49c51020b9ed8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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
46KB

MD5
bb1ac9484024f6dad4bb31a5f677a107

SHA1
f4603dbed9f008d24b648fbb0c4f3cf10a687159

SHA256
c38615ece703d583b3c21c7b6b17a316cd7b4e724e32b7cad54f94ddd5fa826e

SHA512
325665f3c2613ac358ae5518153e3cd3686821924f93987d210d2daf586996e935892cf19436b01333fbe038201816d9c26c8683b7135749750f7e63647cac84

Download Submit
memory/1752-1-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/1752-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1752-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3032-22-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3032-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download