fb658c535d89b680bbe70e01d20d7c0a26f4dfa8398bc863141319080137b26a

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/09/2024, 02:41

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General

Target

2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe
Size

92KB
MD5

56df97aa1f33ad5c709e39f1b6031458
SHA1

71a6c91d77bf3325d46bc00f2212f2d7a08e0f58
SHA256

fb658c535d89b680bbe70e01d20d7c0a26f4dfa8398bc863141319080137b26a
SHA512

a0534131ff061c3f48c96b9ec28de239db7a6ea3c09dbd18ef672d9a15d8ebfa0d9bac791f348d14c3605f76ec05d440216b27ab9382a4ddba705547c16dbf6c
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAey:n6a+1SEOtEvwDpjYYvQd2PT

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2160	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2688	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2688-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000e000000012280-11.dat	upx
behavioral1/memory/2160-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2160-27-0x0000000000500000-0x0000000000510000-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	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2160	2688	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe	31
PID 2688 wrote to memory of 2160	2688	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe	31
PID 2688 wrote to memory of 2160	2688	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe	31
PID 2688 wrote to memory of 2160	2688	2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_56df97aa1f33ad5c709e39f1b6031458_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- 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:2160

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
92KB

MD5
749de202b68e9e6f1334fc5644225bef

SHA1
f1eb8220f3568d4a47918bfaeddb94cf66567aab

SHA256
e314f0b8dcbdce2f52844eb0f137696921d1a0511d5a5a61297084e342253f0d

SHA512
285457f7295b288cfa57f950a44e3cffb284fda44f8ea448451efd5864b0a97f5d57ad716a466de7b3301160178897fbf65494a6ed7c88dfd898a1d79ef61375

Download Submit
memory/2160-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2160-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2160-20-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2160-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2688-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2688-9-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2688-13-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download