911490fb002bbf9134b99f7b55695d3723bd8b032471ed26ed6fd385677ef612

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
19/06/2024, 23:30

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General

Target

2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe
Size

39KB
MD5

fc4d3b8b87bdb4d59bd90ce30b88c6ca
SHA1

0dbd9149a75adcacded25d1554c7da392fdc3ea9
SHA256

911490fb002bbf9134b99f7b55695d3723bd8b032471ed26ed6fd385677ef612
SHA512

97e84cc7cbea00091af8a6a61526026a6f1bf99c4a6acdea357ccca1dd23635689d00deb0ef5dac4d3567b676007d2efd1cbf5cad37d8e01ec57b5a3783db0f6
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYW:qDdFJy3QMOtEvwDpjjWMl7TH

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2624	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012289-11.dat	upx
behavioral1/memory/2036-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2624-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2624-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 2036 wrote to memory of 2624	2036	2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe	28
PID 2036 wrote to memory of 2624	2036	2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe	28
PID 2036 wrote to memory of 2624	2036	2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe	28
PID 2036 wrote to memory of 2624	2036	2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-19_fc4d3b8b87bdb4d59bd90ce30b88c6ca_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2624

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
39KB

MD5
be50a709dc95db32f6bc717570ac2e29

SHA1
b3838e08a6ee42f8c23862112901ec7bd69322cc

SHA256
2db5f474afc0fbd14c19fa505028a66d9af5ece5dd2308e51e4ec842cfbc7471

SHA512
7d059086e6220f9c5f47c70226c71e280b0c8ae9c706fed4c139d4be340ea9a64cbdf640103d04ffa1a78e9b5a62d50981656aa9fa852f84f0cb3cd2cc20ccdf

Download Submit
memory/2036-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2036-2-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2036-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2036-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2036-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2624-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2624-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2624-26-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2624-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download