0d81c8fcc21c83bf86f8f62b4f0aa6b2cfd69a74840c6041116171f07fa0a83e

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 11:07

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General

Target

2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe
Size

58KB
MD5

5980be1f1cb0cf345b0c22112a0cf1f8
SHA1

1dacc75c1efb4edc3771770039d38d16b0b14ca2
SHA256

0d81c8fcc21c83bf86f8f62b4f0aa6b2cfd69a74840c6041116171f07fa0a83e
SHA512

edac044f459b4de6ad8026742976937692ac59e3735b37165af7473544095c3a78fb23c59b2f1a58e9b66ca6741b50e3c095bb388eb74d9843c29470af24864d
SSDEEP

768:bP9g/WItCSsAfFaeOcfXVr3BPOz5CFBmNuFgUjlYG:bP9g/xtCS3Dxx0LG

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2748	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral1/files/0x00080000000120cd-11.dat	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	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe
2748	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2748	2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe	30
PID 2696 wrote to memory of 2748	2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe	30
PID 2696 wrote to memory of 2748	2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe	30
PID 2696 wrote to memory of 2748	2696	2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_5980be1f1cb0cf345b0c22112a0cf1f8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2696
- 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:2748

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\gewos.exe

Filesize
58KB

MD5
4adcdf1c09dcc113109ebba33c2b2c86

SHA1
edac88d400dc6bed439110005cc1591204990e95

SHA256
679fb37083af374c53033c6fe9b5b52c4aef0ca9d086dc6ccbab3cda2bd37665

SHA512
1d745377ca1fee5536d6f4df7ec372adcddb80bf073818636a568f947360fb190fae98ac133e5f0a46bf376731a484706aa70677b0d2b072d96f66ab70e1d616

Download Submit
memory/2696-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2696-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2696-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2696-15-0x00000000005F0000-0x00000000005FE000-memory.dmp

Filesize
56KB

Download
memory/2748-18-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download