d615de693613dfd7e565cd8182d47e19f6fc6c7744fdfb02e4a25e4d4ae5ca1a

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 07:21

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General

Target

2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe
Size

85KB
MD5

707433aa2c1c63232f2b2e6b888b975b
SHA1

89f13e5a54f9dc5d35e44bff42fbb9398c8ec918
SHA256

d615de693613dfd7e565cd8182d47e19f6fc6c7744fdfb02e4a25e4d4ae5ca1a
SHA512

900a03240184a724140bbfe4f377227a553a8cd51868b9f0cfc022d9ed86f1201fd035ffa4e5ca4c3299bb7fc646682eb00795790aad8aae5215e651529066bd
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtI8:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgT

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2820	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3056	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3056-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b000000012259-11.dat	upx
behavioral1/memory/3056-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2820-26-0x0000000000500000-0x000000000050F000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2820	3056	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe	31
PID 3056 wrote to memory of 2820	3056	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe	31
PID 3056 wrote to memory of 2820	3056	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe	31
PID 3056 wrote to memory of 2820	3056	2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_707433aa2c1c63232f2b2e6b888b975b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- 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:2820

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

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Downloads

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

Filesize
85KB

MD5
028b204236e471bcb1c1694ae144be0a

SHA1
53a844f27db17d010498a256a48395aad28d476d

SHA256
59b4a750e97317fc330a1484443c14893e756f2a10a1e4ac2e2d216a4b052471

SHA512
d6fe79a6a0fcf06c04211ef346886203b47625eebd90be9935a663a9bcd7c33828b98445c295f1cd5526cd02356f62197da39874e168e4a3220db6ccfb8f4735

Download Submit
memory/2820-18-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2820-25-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2820-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3056-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3056-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3056-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3056-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3056-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download