2f36ba458301ab671b8b8e7bf4517ddf7e98530e3daf96b34f8838d0267f3092

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 05:28

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General

Target

2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe
Size

54KB
MD5

38728452533d1a58d8cc0828970a7d0d
SHA1

0c29e65c5ea1d22c1b6e0daa472d77a238c9175b
SHA256

2f36ba458301ab671b8b8e7bf4517ddf7e98530e3daf96b34f8838d0267f3092
SHA512

362ff6fa63e38fc5c80a0fbb22d142a8408ebed16c9760adcec48baa53dff4325396c26c2d341342bb0f283d71cc899781510887636c0bfd713541188f9bb204
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0S16avdrQFiLjJvtONS9l:bODOw9acifAoc+v0i

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2912	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x000a00000001225c-11.dat	upx
behavioral1/memory/2380-14-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2912-16-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2912-25-0x0000000008000000-0x000000000800F000-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	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2912	2380	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe	30
PID 2380 wrote to memory of 2912	2380	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe	30
PID 2380 wrote to memory of 2912	2380	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe	30
PID 2380 wrote to memory of 2912	2380	2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_38728452533d1a58d8cc0828970a7d0d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2912

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

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Downloads

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

Filesize
54KB

MD5
2cd858d9e9abe318236f2e03a1391468

SHA1
796d96e8b849670db5de65665131fd28ee452365

SHA256
402e275dca3d1fc0e68df2f5d7e14fa36b1dd0b3bb6f100b341adde8c361c36b

SHA512
821bcc515e19b332fe283637707133cd2b9d690fb6ecc5fc27dfda5a4c5a7383f9ad5cdeb9ecc0e3eaa22018ea0c04d646c142cb1d2fd45bc3faa172cbccbe69

Download Submit
memory/2380-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2380-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2380-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2380-14-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2912-16-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2912-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2912-25-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download