7f7454fd9c633012502ac03c3ddd505aa99da588f8ffa2b58d6acc9f95859bee

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 18:24

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General

Target

2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe
Size

43KB
MD5

19efc34f87bfb789a036bd820706b811
SHA1

5ecac2beda037fadaacebc110cbfe552314a2936
SHA256

7f7454fd9c633012502ac03c3ddd505aa99da588f8ffa2b58d6acc9f95859bee
SHA512

0484cee0339772bfb6fa10fbe2cfc8eccfd68dc6a5c788603d6dd8dffe3009fc3ad3f97f8ed743ebf55a24fa2221aca10e4e6a33abe307e3e8bbda35186a4185
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNcH:bgGYcA/53GADw8Cl/5H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000600000001208c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1728	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1372	2024-03-26_19efc34f87bfb789a036bd820706b811_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 1372 wrote to memory of 1728	1372	2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe	28
PID 1372 wrote to memory of 1728	1372	2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe	28
PID 1372 wrote to memory of 1728	1372	2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe	28
PID 1372 wrote to memory of 1728	1372	2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_19efc34f87bfb789a036bd820706b811_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1728

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
43KB

MD5
65d65754c28310aa00ba1707fcf1e8a9

SHA1
db051d33da46cf34c2e9fb10bbbb79e9ebd742db

SHA256
9f99a884e7c70cb25d990851649a37d3612eff9e6630a0776956ffe4541d156e

SHA512
4131ec4930257cd18a795a99d5c78c3bf4162e253763e7c35b327186211187db2611d6ed2d8819c91809a7562d01dd624a5cec87c49ebc7afb8a2a5f0989e6ef

Download Submit
memory/1372-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1372-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1372-2-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/1728-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1728-22-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download