9cd63cb3d834804a73425e9c90fe041aaea1d255f25a0fbf4364c4019da9faa1

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/11/2024, 19:25

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General

Target

2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe
Size

58KB
MD5

2104511e95c66c08408c885e3d8f9b00
SHA1

74ef7f0c7d9f99f421f81988a86047bedcf0954e
SHA256

9cd63cb3d834804a73425e9c90fe041aaea1d255f25a0fbf4364c4019da9faa1
SHA512

e38f2db439899ee18b18532900c590d18729e0d338f7d9a12774d79a5cb3597f3beb8d133af3d2a9016f054062b611c135c8ba37c17c6047a9e728b25f8b7301
SSDEEP

768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlgcSr:bP9g/xtCS3Dxx0H

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2656	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1508-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/2656-16-0x0000000000400000-0x000000000040E000-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	gewos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe
2656	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2656	1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe	31
PID 1508 wrote to memory of 2656	1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe	31
PID 1508 wrote to memory of 2656	1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe	31
PID 1508 wrote to memory of 2656	1508	2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_2104511e95c66c08408c885e3d8f9b00_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2656

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\gewos.exe

Filesize
59KB

MD5
32270706a6029096ea3a0acf3933c315

SHA1
cb2638a0bd1fe48b48cf6e3c510241a97b90b6fc

SHA256
2744dbe7d1e252b0a41f1088fcd7fbdb1d92c48714012de59e708becfee684ac

SHA512
020c46399d5e2a976ce88e3900255d7ecaee56fb27313fc5b77925e0779f1629101e3ec400bbab8eec86456048cbc8d749e4e11f37fa1327347b2291c0221c37

Download Submit
memory/1508-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1508-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1508-8-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1508-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2656-16-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2656-18-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download