Overview
overview
7Static
static
5SideloadlySetup64.exe
windows11-21h2-x64
7$PLUGINSDI...nu.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3Cryptodome...20.dll
windows11-21h2-x64
1Cryptodome...es.dll
windows11-21h2-x64
1Cryptodome...ni.dll
windows11-21h2-x64
1Cryptodome...bc.dll
windows11-21h2-x64
1Cryptodome...fb.dll
windows11-21h2-x64
1Cryptodome...tr.dll
windows11-21h2-x64
1Cryptodome...cb.dll
windows11-21h2-x64
1Cryptodome...sh.dll
windows11-21h2-x64
1Cryptodome...cb.dll
windows11-21h2-x64
1Cryptodome...fb.dll
windows11-21h2-x64
1Cryptodome...2s.dll
windows11-21h2-x64
1Cryptodome...D5.dll
windows11-21h2-x64
1Cryptodome...A1.dll
windows11-21h2-x64
1Cryptodome...56.dll
windows11-21h2-x64
1Cryptodome...ul.dll
windows11-21h2-x64
1Cryptodome...le.dll
windows11-21h2-x64
1Cryptodome...pt.dll
windows11-21h2-x64
1Cryptodome..._c.dll
windows11-21h2-x64
1Cryptodome...or.dll
windows11-21h2-x64
1_asyncio.dll
windows11-21h2-x64
1select.dll
windows11-21h2-x64
1sideloadly.dll
windows11-21h2-x64
5sideloadly.exe
windows11-21h2-x64
7sideloadlydaemon.exe
windows11-21h2-x64
5sqlite3.dll
windows11-21h2-x64
1unicodedata.dll
windows11-21h2-x64
1vcruntime140.dll
windows11-21h2-x64
1zlib_ng/zlib_ng.dll
windows11-21h2-x64
1Analysis
- max time kernel
149s - max time network
121s - platform
windows11-21h2_x64 - resource
win11-20260911-en - resource tags
arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
26/10/2026, 16:01
Behavioral task
behavioral1
Sample
SideloadlySetup64.exe
Resource
win11-20260911-en
Behavioral task
behavioral2
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win11-20260911-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260911-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260911-en
Behavioral task
behavioral5
Sample
Cryptodome/Cipher/_Salsa20.dll
Resource
win11-20260911-en
Behavioral task
behavioral6
Sample
Cryptodome/Cipher/_raw_aes.dll
Resource
win11-20260911-en
Behavioral task
behavioral7
Sample
Cryptodome/Cipher/_raw_aesni.dll
Resource
win11-20260911-en
Behavioral task
behavioral8
Sample
Cryptodome/Cipher/_raw_cbc.dll
Resource
win11-20260911-en
Behavioral task
behavioral9
Sample
Cryptodome/Cipher/_raw_cfb.dll
Resource
win11-20260911-en
Behavioral task
behavioral10
Sample
Cryptodome/Cipher/_raw_ctr.dll
Resource
win11-20260911-en
Behavioral task
behavioral11
Sample
Cryptodome/Cipher/_raw_ecb.dll
Resource
win11-20260911-en
Behavioral task
behavioral12
Sample
Cryptodome/Cipher/_raw_eksblowfish.dll
Resource
win11-20260911-en
Behavioral task
behavioral13
Sample
Cryptodome/Cipher/_raw_ocb.dll
Resource
win11-20260911-en
Behavioral task
behavioral14
Sample
Cryptodome/Cipher/_raw_ofb.dll
Resource
win11-20260911-en
Behavioral task
behavioral15
Sample
Cryptodome/Hash/_BLAKE2s.dll
Resource
win11-20260911-en
Behavioral task
behavioral16
Sample
Cryptodome/Hash/_MD5.dll
Resource
win11-20260911-en
Behavioral task
behavioral17
Sample
Cryptodome/Hash/_SHA1.dll
Resource
win11-20260911-en
Behavioral task
behavioral18
Sample
Cryptodome/Hash/_SHA256.dll
Resource
win11-20260911-en
Behavioral task
behavioral19
Sample
Cryptodome/Hash/_ghash_clmul.dll
Resource
win11-20260911-en
Behavioral task
behavioral20
Sample
Cryptodome/Hash/_ghash_portable.dll
Resource
win11-20260911-en
Behavioral task
behavioral21
Sample
Cryptodome/Protocol/_scrypt.dll
Resource
win11-20260911-en
Behavioral task
behavioral22
Sample
Cryptodome/Util/_cpuid_c.dll
Resource
win11-20260911-en
Behavioral task
behavioral23
Sample
Cryptodome/Util/_strxor.dll
Resource
win11-20260911-en
Behavioral task
behavioral24
Sample
_asyncio.dll
Resource
win11-20260911-en
Behavioral task
behavioral25
Sample
select.dll
Resource
win11-20260911-en
Behavioral task
behavioral26
Sample
sideloadly.dll
Resource
win11-20260911-en
Behavioral task
behavioral27
Sample
sideloadly.exe
Resource
win11-20260911-en
Behavioral task
behavioral28
Sample
sideloadlydaemon.exe
Resource
win11-20260911-en
Behavioral task
behavioral29
Sample
sqlite3.dll
Resource
win11-20260911-en
Behavioral task
behavioral30
Sample
unicodedata.dll
Resource
win11-20260911-en
Behavioral task
behavioral31
Sample
vcruntime140.dll
Resource
win11-20260911-en
Behavioral task
behavioral32
Sample
zlib_ng/zlib_ng.dll
Resource
win11-20260911-en
General
- Target $PLUGINSDIR/StartMenu.dll
- Size 7KB
- Sample261026-tgh1jsbd89
- SHA256 fe330320459637d8dd2b5d84d07925c38ec264152ffd3b1760a4d44d76536caa
- MD5 b9b71990b37e04a56cadbcbfa694f30f
- SHA1 3b7627deb793446d6b12b7b94266cc592982a5c2
- SHA512 b4aa947aba471ce0ba37ab859391f6a157887c882c920a3081d482f63a83317ae75b428ebae226f835798517abb676114ee42bf13bd4c4291cebbb5e9658f2e5
- SSDEEP 96:VIt3J2Gl0eVe0+Cfo0UkXt6+o69UiGdPh5/utta/x3lkCTcaqHCI:ShE+A0+sF6piUFkA1lncviI
- TLSH T1FFF1C776F3D20673F9AB427428632F231B2AF521576581A7890316CE7A61DE3FD34B11
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Program crash 1 IoCs
pid pid_target Process procid_target 4264 1756 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 4044 wrote to memory of 1756 4044 rundll32.exe 80
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StartMenu.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4044 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\StartMenu.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:1756 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1756 -s 5123⤵
- Program crash
PID:4264
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1756 -ip 17561⤵PID:4960