fa139561fca2fe428b240e5cec7b9646bab65011bbcce5fbae04892b36fc956f

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06/10/2024, 04:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe
Size

36KB
MD5

394f7a16f429cd799f45b2f78c9e3b9f
SHA1

3a9fd93c0f40997f0496191a12793278ef621585
SHA256

fa139561fca2fe428b240e5cec7b9646bab65011bbcce5fbae04892b36fc956f
SHA512

1cfe5cf9a2bd061e2b9c7d825f4d8789d67eb8a6ec6f03ca5b48f17bf452d3d6e00fd25aad2270e91792785cd315f774986f19bbbb3e840a9a6c21c78520c07b
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6Y:qDdFJy3QMOtEvwDpjjWMl7T6Y

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2712	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2732	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2732-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012283-11.dat	upx
behavioral1/memory/2732-12-0x00000000006F0000-0x0000000000700000-memory.dmp	upx
behavioral1/memory/2712-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2732-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2712-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2712	2732	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe	30
PID 2732 wrote to memory of 2712	2732	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe	30
PID 2732 wrote to memory of 2712	2732	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe	30
PID 2732 wrote to memory of 2712	2732	2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_394f7a16f429cd799f45b2f78c9e3b9f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
36KB

MD5
20af04e97c05bd2a74b7748d280d26ae

SHA1
a8ed1cc49ec5dc49f78a83d4107531d90eb4f35b

SHA256
77470a27006751e76e85d01a2d5798db1d3874bce6b22067820dbe18d3aa7272

SHA512
87c16809bf99bbf0e5a09b209789dbbc0bcb1b288ed526e8de1f4b079ff851cb54a23cf3b8d284cd9dcb162e29fe625f5086058822273a761831cdc15dfa08f0

Download Submit
memory/2712-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2712-27-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2712-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2732-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2732-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2732-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2732-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2732-12-0x00000000006F0000-0x0000000000700000-memory.dmp

Filesize
64KB

Download
memory/2732-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download