07a3364272523bf41cdbd2e64cc57e1e070dd0c64a4746828eaafdd224e0686e

Analysis

max time kernel
134s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/09/2024, 06:56

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General

Target

2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe
Size

62KB
MD5

bee6a5e474a7b7e553ef793a09d8c092
SHA1

325b8a597cbdf7031880ce5cbff0b2cd2f1495d5
SHA256

07a3364272523bf41cdbd2e64cc57e1e070dd0c64a4746828eaafdd224e0686e
SHA512

afef4d79b856374403ec708f3b062f6f357699320bd135a981d1353bb88faf2ef47743d86c7552c400c9b645a6196560ba6526b7277bef80538d704eb49fa7f7
SSDEEP

768:T6LsoEEeegiZPvEhHSG+gkum/kLyMro2GtOOtEvwDpjhXMLam5axK38noysn:T6QFElP6n+gxmddpMOtEvwDpjwaYaQ86

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2076	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2448	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2448-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000012272-11.dat	upx
behavioral1/memory/2076-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2448-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2076-26-0x0000000000500000-0x0000000000510000-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	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_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 2448 wrote to memory of 2076	2448	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe	31
PID 2448 wrote to memory of 2076	2448	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe	31
PID 2448 wrote to memory of 2076	2448	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe	31
PID 2448 wrote to memory of 2076	2448	2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_bee6a5e474a7b7e553ef793a09d8c092_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- 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:2076

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

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Downloads

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

Filesize
62KB

MD5
80102ecf7a6f7a7b3890e6534fda6311

SHA1
4fe4ad655c76c60f385414b1e1b5a7633adde697

SHA256
f29c5398c4f7f45eccc46a71a7eb61ad322ea64d7dfc332804bf0e69cdc0f891

SHA512
f53bc464ed8300d750a2909da38a8502f7a9765db94c9ead2245f864bfd48380e44b13db75315268e6843ba34653418bae6d4e015768dfec4f674c808bb41e7c

Download Submit
memory/2076-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2076-25-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2076-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2076-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2448-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2448-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2448-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2448-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2448-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download