Overview
overview
7Static
static
3Portamento....3.exe
windows10-2004-x64
7Portamento....3.exe
windows11-21h2-x64
7$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...ns.dll
windows11-21h2-x64
3$PLUGINSDI...ec.dll
windows10-2004-x64
3$PLUGINSDI...ec.dll
windows11-21h2-x64
3App/Launcher.exe
windows10-2004-x64
1App/Launcher.exe
windows11-21h2-x64
1App/lib/Cr...C4.dll
windows10-2004-x64
1App/lib/Cr...C4.dll
windows11-21h2-x64
1App/lib/Cr...20.dll
windows10-2004-x64
1App/lib/Cr...20.dll
windows11-21h2-x64
1App/lib/Cr...20.dll
windows10-2004-x64
1App/lib/Cr...20.dll
windows11-21h2-x64
1App/lib/Cr...de.dll
windows10-2004-x64
1App/lib/Cr...de.dll
windows11-21h2-x64
1App/lib/Cr...es.dll
windows10-2004-x64
1App/lib/Cr...es.dll
windows11-21h2-x64
1App/lib/Cr...ni.dll
windows10-2004-x64
1App/lib/Cr...ni.dll
windows11-21h2-x64
1App/lib/Cr...c2.dll
windows10-2004-x64
1App/lib/Cr...c2.dll
windows11-21h2-x64
1App/lib/Cr...sh.dll
windows10-2004-x64
1App/lib/Cr...sh.dll
windows11-21h2-x64
1App/lib/Cr...st.dll
windows10-2004-x64
1App/lib/Cr...st.dll
windows11-21h2-x64
1App/lib/Cr...bc.dll
windows10-2004-x64
1App/lib/Cr...bc.dll
windows11-21h2-x64
1App/lib/Cr...fb.dll
windows10-2004-x64
1App/lib/Cr...fb.dll
windows11-21h2-x64
1App/lib/Cr...tr.dll
windows10-2004-x64
1App/lib/Cr...tr.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/05/2026, 15:24
Behavioral task
behavioral1
Sample
PortamentoLoader-v1.3.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
PortamentoLoader-v1.3.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/nsExec.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/nsExec.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
App/Launcher.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
App/Launcher.exe
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
App/lib/Cryptodome.Cipher._ARC4.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
App/lib/Cryptodome.Cipher._ARC4.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
App/lib/Cryptodome.Cipher._Salsa20.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
App/lib/Cryptodome.Cipher._Salsa20.dll
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
App/lib/Cryptodome.Cipher._chacha20.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
App/lib/Cryptodome.Cipher._chacha20.dll
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
App/lib/Cryptodome.Cipher._pkcs1_decode.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
App/lib/Cryptodome.Cipher._pkcs1_decode.dll
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
App/lib/Cryptodome.Cipher._raw_aes.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
App/lib/Cryptodome.Cipher._raw_aes.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
App/lib/Cryptodome.Cipher._raw_aesni.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
App/lib/Cryptodome.Cipher._raw_aesni.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
App/lib/Cryptodome.Cipher._raw_arc2.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
App/lib/Cryptodome.Cipher._raw_arc2.dll
Resource
win11-20260130-en
Behavioral task
behavioral23
Sample
App/lib/Cryptodome.Cipher._raw_blowfish.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral24
Sample
App/lib/Cryptodome.Cipher._raw_blowfish.dll
Resource
win11-20260130-en
Behavioral task
behavioral25
Sample
App/lib/Cryptodome.Cipher._raw_cast.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral26
Sample
App/lib/Cryptodome.Cipher._raw_cast.dll
Resource
win11-20260130-en
Behavioral task
behavioral27
Sample
App/lib/Cryptodome.Cipher._raw_cbc.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral28
Sample
App/lib/Cryptodome.Cipher._raw_cbc.dll
Resource
win11-20260130-en
Behavioral task
behavioral29
Sample
App/lib/Cryptodome.Cipher._raw_cfb.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral30
Sample
App/lib/Cryptodome.Cipher._raw_cfb.dll
Resource
win11-20260130-en
Behavioral task
behavioral31
Sample
App/lib/Cryptodome.Cipher._raw_ctr.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral32
Sample
App/lib/Cryptodome.Cipher._raw_ctr.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/nsExec.dll
- Size 6KB
- Sample260502-ss6ejsft5m
- SHA256 e90878fb1a9f6f71f58e091706778408c455b1461da28fbfa742b0a8dfee0478
- MD5 4b2c42148ee0414fc031141de8d07508
- SHA1 3c6e243194b250d401bd3e6c504e644dec0472d7
- SHA512 e584683bf12cdbbc7a1ab659dab7d602458e4f5ac5b5a6ec1f7f0510b9012c2eca84bd0961b82e535282833b6c4468513e52dc5c9d0b441481f3a00f7192204e
- SSDEEP 96:GJX1XJX70VnIjKdpClMdOfHFI2NaeI0Q1qND1qN3riUTEVXQcL:G1x1AVnIudpClyOtIs1QUhUZriUTEVX
- TLSH T15DC1EA7AB5C23CF3C24D0F757C1524264BB5D4251B180204EEF79BD2BE86E92EC34689
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 1020 3832 WerFault.exe 80 - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2372 wrote to memory of 3832 2372 rundll32.exe 80
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3832 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3832 -s 5003⤵
- Program crash
PID:1020
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3832 -ip 38321⤵PID:1888