023016993a8f6aa327039c1ac9e96a70d62086141320658d9898e7bafa938dca

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 02:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe
Size

60KB
MD5

4d6f0d6316e7c087544b817ec004eb88
SHA1

f3f8e24f9f764be4d24c94e50f4de47157343c7a
SHA256

023016993a8f6aa327039c1ac9e96a70d62086141320658d9898e7bafa938dca
SHA512

72bbd5c56d0342e1b4b750be30d7d358076fe3bf7ed527ea6be0e6ecac7f8400d250e77f6d935f74c005fcb78385fa465bed95f294f0487f89ba11fa1f1ce684
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5ax+Ni:z6QFElP6n+gKmddpMOtEvwDpj9aYaR

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2968	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1228	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1228-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120f6-11.dat	upx
behavioral1/memory/2968-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1228-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2968-26-0x0000000000500000-0x0000000000510000-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	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_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 1228 wrote to memory of 2968	1228	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe	30
PID 1228 wrote to memory of 2968	1228	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe	30
PID 1228 wrote to memory of 2968	1228	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe	30
PID 1228 wrote to memory of 2968	1228	2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_4d6f0d6316e7c087544b817ec004eb88_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1228
- 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:2968

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
60KB

MD5
69a103db61daffc64866710e4336a0db

SHA1
2c127b4e7a9e8f36977422e9daa50c8a5c88d7aa

SHA256
0604ef0b09237f416806338018468c314186a7dc8f235625137999b2ea296a19

SHA512
ae45d62b339e994b1c084e57b9dbe8cfad9216c0b6bfc53e461ef2c8102952e6269a5cd3ea897ffc7443476cc08ebdb4bfc2963e006ca8a79d8da51760a60cb0

Download Submit
memory/1228-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1228-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1228-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1228-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1228-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2968-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2968-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2968-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2968-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download