2abe8d6717de7cd6ceeb3421dc7d02674b5bcf61c8b0efd945a41e36ef5be029

Analysis

max time kernel
148s
max time network
150s
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 06:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe
Size

69KB
MD5

c1caafec348b3c8fd9cee2c467cd16b7
SHA1

55beebd919d19e6ca88153543fe2264943019400
SHA256

2abe8d6717de7cd6ceeb3421dc7d02674b5bcf61c8b0efd945a41e36ef5be029
SHA512

c1f2078245d4e05db0f02e9358ef0cc2ba2ca8ac4291f123941d250e9b75294fdf5adb9a20d741bf5cd0beff175d92513571069a12280e4f1f91406c08643d37
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTJk5asCZ9:T6a+rdOOtEvwDpjNt

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3264	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/964-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000900000002343c-13.dat	upx
behavioral2/memory/964-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3264-26-0x0000000000500000-0x0000000000510000-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	2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 3264	964	2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe	82
PID 964 wrote to memory of 3264	964	2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe	82
PID 964 wrote to memory of 3264	964	2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_c1caafec348b3c8fd9cee2c467cd16b7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:964
- 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:3264

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
70KB

MD5
db0fab632bab67885e70799931cb686f

SHA1
a17783bb6e21173dbacf7371082d1e5a80e9e814

SHA256
39b442764e6af0362c0e87ff16ba1172cb4bfac02d391a4e6947c35068e22906

SHA512
1f4bec80cb0932c6330a441aa8d751a6916b60369590f8397358642a06f01ded284c92e60a51c4c8da89f2c017526c4ac70f8473f721ed6bf0cf3746f2aa5d30

Download Submit
memory/964-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/964-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/964-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/964-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/964-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3264-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3264-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3264-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download