9a541d40a95502211d000ec10b6d75ef6aaf7e335e06c82fb2bb850e55f3f3fe

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 06:32

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General

Target

2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe
Size

96KB
MD5

eb1bcd5e6869043f4685ae587f87a6a9
SHA1

29f913ab7a94e2873c01dc73e97667ffc903b63e
SHA256

9a541d40a95502211d000ec10b6d75ef6aaf7e335e06c82fb2bb850e55f3f3fe
SHA512

e2d950a062fd7cdec40294eaa56833ca75b68ba3954008ec88e2459d26ecdd1c017778b7644fcf3eee99003611cdc30345e6e9d1fa544a1cda889e158c02e970
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp+ofI5MN:AnBdOOtEvwDpj6zG

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2064	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4600-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0003000000022ab1-13.dat	upx
behavioral2/memory/4600-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/2064-27-0x0000000000500000-0x000000000050F000-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	2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 2064	4600	2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe	84
PID 4600 wrote to memory of 2064	4600	2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe	84
PID 4600 wrote to memory of 2064	4600	2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_eb1bcd5e6869043f4685ae587f87a6a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600
- 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:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
96KB

MD5
cca398fab7bc8d7745f2ec666aa3db65

SHA1
ba0faf21dbaf0571de7a5cb8fae3d7bd50f3169f

SHA256
a46198884489451dd4cb68f3f61c7ffb80f6da04572bd08dccbf9d50b09994b7

SHA512
b4c54f6ed1cef39eab829d00ad1d594e47c9f8f7cda121de6c95ad80d7f8bbf4b3672706992e5bbb3e5b9c7facce0fdd1e5b5f3dca2fa853f79514ddcb66e6be

Download Submit
memory/2064-20-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/2064-21-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/2064-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4600-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4600-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/4600-2-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/4600-3-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4600-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download