e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734

max time kernel
120s
max time network
127s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-es
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-eslocale:es-esos:windows11-ltsc_2024-x64systemwindows
submitted
11/11/2026, 01:54

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General

Target
Ransomware/CryptoWall.exe
Size 132KB
Sample261111-cb2f9sts2r
SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
MD5 919034c8efb9678f96b47a20fa6199f2
SHA1 747070c74d0400cffeb28fbea17b64297f14cfbd
SHA512 745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4
SSDEEP 3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP
TLSH
T1E3D31910D060C3BAE09250F9D7EB0DBDB8355D50235619C763C63F38AB92DE5A731BAA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Creates a file in the Startup directory 1 TTPs 1 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e93c8b9a.exe	explorer.exe

Executes dropped EXE 2 IoCs

pid	Process
4932	e93c8b9a.exe
4868	e93c8b9a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-560646293-820748483-2532804640-1000\Software\Microsoft\Windows\CurrentVersion\Run\e93c8b9 = "C:\\e93c8b9a\\e93c8b9a.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-560646293-820748483-2532804640-1000\Software\Microsoft\Windows\CurrentVersion\Run\e93c8b9a = "C:\\Users\\Admin\\AppData\\Roaming\\e93c8b9a.exe"	explorer.exe

Looks up external IP address via web service 1 TTPs 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

discovery

Internet Connection Discovery

T1016.001

flow	ioc
1	ip-addr.es
1	myexternalip.com

System Location Discovery: System Language Discovery 1 TTPs 5 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e93c8b9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e93c8b9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CryptoWall.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: MapViewOfSection 1 TTPs 2 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
5148	CryptoWall.exe
1108	explorer.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5148 wrote to memory of 1108	5148	CryptoWall.exe	88
PID 1108 wrote to memory of 4952	1108	explorer.exe	91

C:\Users\Admin\AppData\Local\Temp\Ransomware\CryptoWall.exe
"C:\Users\Admin\AppData\Local\Temp\Ransomware\CryptoWall.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5148
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\syswow64\explorer.exe"
  2⤵
  - Creates a file in the Startup directory
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\SysWOW64\svchost.exe
    -k netsvcs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4952

C:\e93c8b9a\e93c8b9a.exe
C:\e93c8b9a\e93c8b9a.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4932

C:\Users\Admin\AppData\Roaming\e93c8b9a.exe
C:\Users\Admin\AppData\Roaming\e93c8b9a.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4868

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Process Injection

T1055

Defense Evasion

Modify Registry

T1112

Process Injection

T1055

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

e93c8b9a.exe

Path C:\e93c8b9a\e93c8b9a.exe
Size 132KB
SHA256 e036d68b8f8b7afc6c8b6252876e1e290f11a26d4ad18ac6f310662845b2c734
MD5 919034c8efb9678f96b47a20fa6199f2
SHA1 747070c74d0400cffeb28fbea17b64297f14cfbd
SHA512 745a81c50bbfd62234edb9788c83a22e0588c5d25c00881901923a02d7096c71ef5f0cd5b73f92ad974e5174de064b0c5ea8044509039aab14b2aed83735a7c4
SSDEEP 3072:naRQpzd/99wen3XgWorw8I3h8LkMvqCgQfBUnPy8L6kssU:nJdTwo30ri3h8LkMvqCgQfBUPy8L6ksP
TLSH
T1E3D31910D060C3BAE09250F9D7EB0DBDB8355D50235619C763C63F38AB92DE5A731BAA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1108-0-0x00000000010C0000-0x00000000010E5000-memory.dmp

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memory/1108-1-0x00000000010C0000-0x00000000010E5000-memory.dmp

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memory/4952-5-0x0000000000610000-0x0000000000635000-memory.dmp

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memory/4952-6-0x0000000000610000-0x0000000000635000-memory.dmp

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memory/4952-12-0x0000000000610000-0x0000000000635000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads