aa1cef07804fafd891190518e33f88224e9377fbddb945f25f5748f39091caa0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 08:32

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General

Target

2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe
Size

91KB
MD5

989e4a3a0c36859fad34d900c3ce4215
SHA1

3129a132d7e663c010d67b7b2d665d33b95e18f8
SHA256

aa1cef07804fafd891190518e33f88224e9377fbddb945f25f5748f39091caa0
SHA512

063a2b322e49f2e3eece0e18f1257e6a6735a373de61ef654d6f1b963f8b58514e8fca06c629aa15f05af486bd6a704c4815ad42f064e339249ead5c22f98533
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/N:n6a+1SEOtEvwDpjYYvQd2P+

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2264-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023ba7-13.dat	upx
behavioral2/memory/2264-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2816-26-0x0000000000500000-0x0000000000510000-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	2024-10-09_989e4a3a0c36859fad34d900c3ce4215_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 2264 wrote to memory of 2816	2264	2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe	86
PID 2264 wrote to memory of 2816	2264	2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe	86
PID 2264 wrote to memory of 2816	2264	2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_989e4a3a0c36859fad34d900c3ce4215_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264
- 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:2816

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

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Downloads

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

Filesize
91KB

MD5
540962ab402cd1bc5fa23f3a3b473918

SHA1
ba3c3ff39fd44bcd49b57913eb9790b199a1ac2a

SHA256
983b29396aa4f9a99d9cf485aebbbe23dbcf348894347a6a28cc552078c9c26e

SHA512
a0f2e2a0b2bd7b50a8da2e1966285e27ada06137a5f77e750420bdad214877e212301253f408ce13956c1530dcf3985e4d8cff8d9a92cbe2e20c99fcd6538892

Download Submit
memory/2264-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2264-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2264-2-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2264-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/2264-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2816-19-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2816-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2816-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download