Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
15/04/2026, 17:33
Static task
static1
Behavioral task
behavioral1
Sample
x604d39766391d9e7f14ff6a41ad53f97dd011a9de075505f215170dfe1768d6e.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
x604d39766391d9e7f14ff6a41ad53f97dd011a9de075505f215170dfe1768d6e.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/blvitae.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/blvitae.dll
Resource
win11-20260130-en
General
- Target $PLUGINSDIR/blvitae.dll
- Size 83KB
- Sample260415-v411baft7l
- SHA256 82f3d8e31e90e0250657e38806cff749e68a40676bee6883d9af5e056303c532
- MD5 ac6721f85992ebcd8f880fa231f056d4
- SHA1 88c553a0cc6504de31fcd17efe03ecbc62d7f94e
- SHA512 a1b9c5225397a84d06ba21585f4e9075bef35703e8d3a67bbcd621277cd235263aae86ef7e4081fcc0bef3899e807b577ad828f4b34b41eb4800c241749b3d87
- SSDEEP 1536:pHCa7j/RLmHWR2LTujFWIci/Zt21sWv9cd5kTSvmxOvNR:84RLmHFLTujF7v2Xs5kuOxOvNR
- TLSH T1AA835B4075D1C871E6BE09355864D5616B3EBD528FE09E6B278623AE0F702C1EF34E3A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
remcos
-
4.7.2 Pro
-
RemoteHost
-
208.67.107.123:8780
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-1ZDEV4
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Badlisted process makes network request 7 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 1 2768 rundll32.exe 2 2768 rundll32.exe 4 2768 rundll32.exe 5 2768 rundll32.exe 6 2768 rundll32.exe 9 2768 rundll32.exe 10 2768 rundll32.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2122505878-652277452-2375749442-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkktddyirr = "C:\\Users\\Admin\\AppData\\Roaming\\jsccxhhd\\mmvrbbkgg.exe rundll32.exe C:\\Users\\Admin\\AppData\\Local\\Temp\\$PLUGINSDIR\\blvitae.dll,#1" rundll32.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4180 set thread context of 2768 4180 rundll32.exe 82 - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4180 rundll32.exe 4180 rundll32.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2768 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3352 wrote to memory of 4180 3352 rundll32.exe 80 PID 4180 wrote to memory of 5244 4180 rundll32.exe 81 PID 4180 wrote to memory of 2768 4180 rundll32.exe 82
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\blvitae.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\blvitae.dll,#12⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4180 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"3⤵PID:5244
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"3⤵
- Badlisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2768
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\ProgramData\remcos\logs.dat
- Size 144B
- SHA256 8337a72a9995d68f675ea6f880bdb12e39889a890c9abbe2ff8d2886b5386663
- MD5 e86e2988b668c8065a47c2840a917d08
- SHA1 8f906fba7089e130ce8fe0c33a896e35bead5575
- SHA512 ab3710862e783ee56f1fabda4cdb42fcecac56eb0550b82049470d8e025829a9903c7301bf5f27c17e56a1231e6187b30544ce9cf257bcb096f3279d401670bb
- TLSH T1A2C0929A77E1101F79B3B2AB9477003ABA72FD67003CCC0D21D2438C09F6A0122847DB
- MD5 SHA1 SHA512 TLSH