darktortilla | 4206c4ded33b3137cb67d2013deb8c6d78b4a55fd16d9930904ad548d8802c19

Analysis

max time kernel
150s
max time network
145s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
03/10/2025, 13:04

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General

Target
Cotización de Shine, 2 de octubre de 2025.exe
Size 448KB
Sample251003-qbcd2a1sev
SHA256 4206c4ded33b3137cb67d2013deb8c6d78b4a55fd16d9930904ad548d8802c19
MD5 c9f0f5c54927915dfa5be5898e7afde0
SHA1 8ca33f8f3097d3c3d8d005c0f0060ea9606f93a7
SHA512 aff619924e5fe804c1cbe73bbc3bdc2f0d66589b535a681ffe5a12f914aea3af1cc67937c362df6f94239937e16aac2eec3d4fca8a734c3fda60b4e0b46d2739
SSDEEP 6144:it9Im+XtFgYKXkep2sNbq4TydaFJ1a0nAKVpROuZKcuWr4C4QcdugZAaqy+sDG:it9kdFgX52Ybv2daD1xAKrROu+T
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

crypter discovery darktortilla xworm loader persistence rat trojan

Malware Config

Extracted

Family

xworm

petro4prime.ydns.eu:5909

Attributes

Install_directory
%AppData%
install_file
PowerPoint.exe

Signatures

Darktortilla
DarkTortilla is a highly configurable .NET based crypter that delivers a wide range of information stealers.
loader crypter darktortilla
Darktortilla family
darktortilla

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4764-18-0x0000000000400000-0x0000000000416000-memory.dmp	family_xworm

Detects Darktortilla crypter. 1 IoCs

resource	yara_rule
behavioral2/memory/5720-5-0x0000000004BD0000-0x0000000004C12000-memory.dmp	darktortilla

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1418876453-2228697459-2788511057-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\newapp.exe,"	reg.exe

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PowerPoint.lnk	newapp.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PowerPoint.lnk	newapp.exe

Executes dropped EXE 2 IoCs

pid	Process
464	newapp.exe
4764	newapp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 464 set thread context of 4764	464	newapp.exe	87

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 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	newapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cotización de Shine, 2 de octubre de 2025.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	newapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4560	cmd.exe
6088	PING.EXE
3552	cmd.exe
716	PING.EXE
4460	PING.EXE

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery

T1018

pid	Process
6088	PING.EXE
716	PING.EXE
4460	PING.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
5720	Cotización de Shine, 2 de octubre de 2025.exe
464	newapp.exe
464	newapp.exe
464	newapp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5720	Cotización de Shine, 2 de octubre de 2025.exe
Token: SeDebugPrivilege	464	newapp.exe
Token: SeDebugPrivilege	4764	newapp.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 5720 wrote to memory of 4560	5720	Cotización de Shine, 2 de octubre de 2025.exe	78
PID 5720 wrote to memory of 4560	5720	Cotización de Shine, 2 de octubre de 2025.exe	78
PID 5720 wrote to memory of 4560	5720	Cotización de Shine, 2 de octubre de 2025.exe	78
PID 4560 wrote to memory of 6088	4560	cmd.exe	80
PID 4560 wrote to memory of 6088	4560	cmd.exe	80
PID 4560 wrote to memory of 6088	4560	cmd.exe	80
PID 5720 wrote to memory of 3552	5720	Cotización de Shine, 2 de octubre de 2025.exe	81
PID 5720 wrote to memory of 3552	5720	Cotización de Shine, 2 de octubre de 2025.exe	81
PID 5720 wrote to memory of 3552	5720	Cotización de Shine, 2 de octubre de 2025.exe	81
PID 3552 wrote to memory of 716	3552	cmd.exe	83
PID 3552 wrote to memory of 716	3552	cmd.exe	83
PID 3552 wrote to memory of 716	3552	cmd.exe	83
PID 4560 wrote to memory of 3320	4560	cmd.exe	84
PID 4560 wrote to memory of 3320	4560	cmd.exe	84
PID 4560 wrote to memory of 3320	4560	cmd.exe	84
PID 3552 wrote to memory of 4460	3552	cmd.exe	85
PID 3552 wrote to memory of 4460	3552	cmd.exe	85
PID 3552 wrote to memory of 4460	3552	cmd.exe	85
PID 3552 wrote to memory of 464	3552	cmd.exe	86
PID 3552 wrote to memory of 464	3552	cmd.exe	86
PID 3552 wrote to memory of 464	3552	cmd.exe	86
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87
PID 464 wrote to memory of 4764	464	newapp.exe	87

C:\Users\Admin\AppData\Local\Temp\Cotización de Shine, 2 de octubre de 2025.exe
"C:\Users\Admin\AppData\Local\Temp\Cotización de Shine, 2 de octubre de 2025.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5720
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 7 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe,"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4560
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 7
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:6088
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe,"
    3⤵
    - Modifies WinLogon for persistence
    - System Location Discovery: System Language Discovery
    PID:3320
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c ping 127.0.0.1 -n 20 > nul && copy "C:\Users\Admin\AppData\Local\Temp\Cotización de Shine, 2 de octubre de 2025.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe" && ping 127.0.0.1 -n 20 > nul && "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3552
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 20
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:716
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 20
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4460
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:464
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:4764

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

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

newapp.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\newapp.exe.log
Size 1KB
SHA256 954f692df2fb645ad94c0d8a397f8a6776f13bd16d7a4974138fd0f0cb2895f3
MD5 2f13af6aee5f8bb7506e5bb1c5db5503
SHA1 f90001d0ddbcf42bdf726d15194c02968e4c6e27
SHA512 4dcd079e6707e6f087f2ecda602bf54e6e96c275385130d5512eb8da4061fe7d36c57eb32b833a6fb3bfc7860830af161f874f75f78dde34660a9de87b78669b
MD5 SHA1 SHA512

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newapp.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\newapp.exe
Size 448KB
SHA256 4206c4ded33b3137cb67d2013deb8c6d78b4a55fd16d9930904ad548d8802c19
MD5 c9f0f5c54927915dfa5be5898e7afde0
SHA1 8ca33f8f3097d3c3d8d005c0f0060ea9606f93a7
SHA512 aff619924e5fe804c1cbe73bbc3bdc2f0d66589b535a681ffe5a12f914aea3af1cc67937c362df6f94239937e16aac2eec3d4fca8a734c3fda60b4e0b46d2739
SSDEEP 6144:it9Im+XtFgYKXkep2sNbq4TydaFJ1a0nAKVpROuZKcuWr4C4QcdugZAaqy+sDG:it9kdFgX52Ybv2daD1xAKrROu+T
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/464-17-0x0000000005C00000-0x0000000005C10000-memory.dmp

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memory/464-14-0x0000000005C00000-0x0000000005C10000-memory.dmp

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memory/464-16-0x0000000006DD0000-0x0000000006DD6000-memory.dmp

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memory/464-15-0x0000000006DC0000-0x0000000006DD6000-memory.dmp

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memory/4764-26-0x0000000005B60000-0x0000000005BC6000-memory.dmp

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memory/4764-18-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/5720-6-0x0000000005190000-0x000000000519A000-memory.dmp

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memory/5720-2-0x0000000004C60000-0x0000000004CF2000-memory.dmp

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memory/5720-7-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

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memory/5720-3-0x0000000004D00000-0x0000000004D9C000-memory.dmp

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memory/5720-0-0x0000000000110000-0x0000000000186000-memory.dmp

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memory/5720-1-0x0000000005210000-0x00000000057B6000-memory.dmp

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memory/5720-5-0x0000000004BD0000-0x0000000004C12000-memory.dmp

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memory/5720-4-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

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