64e92b94a754fb4ed55fc20d5fe72acf69ed4a88faab6292755ca786a41e97c0

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-10-2024 07:43

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General

Target

2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe
Size

40KB
MD5

611ab645792ff2002420c764ae104840
SHA1

c67b56172e9568dd5cecb5b60dfa4bc4cf804ea6
SHA256

64e92b94a754fb4ed55fc20d5fe72acf69ed4a88faab6292755ca786a41e97c0
SHA512

8975b7a8ec7182af5381eadd8fadec66a04e225c82f638fa2a715e6ce37c4953b2428da94fdfd5412366b16dc8971e507b64580a2d62605d667a59055f7f38ba
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9Sa:qDdFJy3QMOtEvwDpjjWMl7TZa

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1688	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2548-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012029-11.dat	upx
behavioral1/memory/2548-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1688-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1688	2548	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe	30
PID 2548 wrote to memory of 1688	2548	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe	30
PID 2548 wrote to memory of 1688	2548	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe	30
PID 2548 wrote to memory of 1688	2548	2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_611ab645792ff2002420c764ae104840_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2548
- 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:1688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\asih.exe

Filesize
40KB

MD5
a15ffc2fe7d890eef0242718c98cdc6c

SHA1
02ef1f2ad4ea995ae9a6039784ca3e2c13bbaae9

SHA256
ef34950f19ef0fd88d0d2e94bc4ea4a2f011c9c2b8be6439e28b80b81f84cdb7

SHA512
7cc83f980e0fa6a70fecb572fb7375b1103e60c9bb7ff1b5e234ce786a5dafe1d9e9a2651a6ae55c73c8079cbd5f3c7fde301066fe6ef6f0569a8e4eb97bd8f9

Download Submit
memory/1688-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1688-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1688-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2548-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2548-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2548-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2548-3-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2548-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download