a9b0fa55ad4dcf1528d63aea12accf96c483f410b1406564785f60e8c548d1e3

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11/02/2024, 19:52

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General

Target

2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe
Size

48KB
MD5

a6bd9dbe291ec9b73f9bd5ce9da384e2
SHA1

4871fd7a0dbde10037467ab721ee19a61be33dd1
SHA256

a9b0fa55ad4dcf1528d63aea12accf96c483f410b1406564785f60e8c548d1e3
SHA512

e5072d40d4b11181752abef33be40afdfc13f8ccd5eeacd44bbd899565f59a1e46b9b7e3a6ee930e76332faeb74c985bf98af75958922b66d62ea721e00d7c37
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CAZ:bgGYcA/53GAA6y37Q6dI+d5j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012284-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2700	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2516	2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_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 2516 wrote to memory of 2700	2516	2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe	28
PID 2516 wrote to memory of 2700	2516	2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe	28
PID 2516 wrote to memory of 2700	2516	2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe	28
PID 2516 wrote to memory of 2700	2516	2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-11_a6bd9dbe291ec9b73f9bd5ce9da384e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

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\hasfj.exe

Filesize
48KB

MD5
a43742579ce5650ee15fb0d9f1901ad2

SHA1
8e87c1b9e5d06847239a1277fbd9e507ed52791d

SHA256
cb14632d4736a3270214494b47b164da5457d6e9da17abaad5db42bb0c640cca

SHA512
bbbf81fdbbed9a44aa077902cec0d247fee22f28911fb58a2cd1a652a56e4a24b157434417bc995eb37a193639206a155881aa5cefeadddebceee5c05dddae06

Download Submit
memory/2516-0-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/2516-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2516-3-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/2700-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2700-22-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download