Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/03/2023, 18:28
General
- Target RECIBO MTCN.exe
- Size 294KB
- Sample230328-w4bwvsce39
- SHA256 29cabc4d11ff9dc55301ff8d60eb06d1e1ec9c2509910ceda522e84ab4e240f8
Malware Config
Extracted
-
formbook
-
4.1
-
ke03
-
fastartcustom.com
-
ikanggabus.xyz
-
aevum.ru
-
lacarretapps.com
-
arcaneacquisitions.net
-
fuulyshop.com
-
bloodbahis278.com
-
bullardrvpark.com
-
cowboy-hostel.xyz
-
empireoba.com
-
the-windsor-h.africa
-
help-desk-td.com
-
dofirosols.life
-
efefarmy.buzz
-
kewwrf.top
-
autoran.co.uk
-
moodysanalytics.boo
-
kulturemarket.com
-
ffwpu-kenya.com
-
heykon.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 5 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RECIBO MTCN.exe"C:\Users\Admin\AppData\Local\Temp\RECIBO MTCN.exe"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\mytnrk.exe"C:\Users\Admin\AppData\Local\Temp\mytnrk.exe" C:\Users\Admin\AppData\Local\Temp\glfpuulw.z3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\mytnrk.exe"C:\Users\Admin\AppData\Local\Temp\mytnrk.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
-
-
C:\Windows\SysWOW64\colorcpl.exe"C:\Windows\SysWOW64\colorcpl.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\mytnrk.exe"3⤵
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
glfpuulw.z
hhnopgnyiu.bp
mytnrk.exe
mytnrk.exe
mytnrk.exe
memory/560-153-0x0000000000400000-0x000000000042F000-memory.dmp
memory/560-142-0x0000000000400000-0x000000000042F000-memory.dmp
memory/560-146-0x0000000000BC0000-0x0000000000F0A000-memory.dmp
memory/560-147-0x0000000000400000-0x000000000042F000-memory.dmp
memory/560-148-0x00000000006E0000-0x00000000006F4000-memory.dmp
memory/560-151-0x0000000000740000-0x0000000000754000-memory.dmp
memory/1544-141-0x00000000006E0000-0x00000000006E2000-memory.dmp
memory/2616-149-0x0000000008A80000-0x0000000008BF4000-memory.dmp
memory/2616-152-0x0000000008E80000-0x0000000008FE2000-memory.dmp
memory/2616-162-0x000000000AAD0000-0x000000000AC20000-memory.dmp
memory/2616-163-0x000000000AAD0000-0x000000000AC20000-memory.dmp
memory/2616-165-0x000000000AAD0000-0x000000000AC20000-memory.dmp
memory/4800-154-0x0000000000520000-0x0000000000539000-memory.dmp
memory/4800-156-0x0000000000520000-0x0000000000539000-memory.dmp
memory/4800-157-0x0000000001010000-0x000000000103F000-memory.dmp
memory/4800-158-0x0000000002FE0000-0x000000000332A000-memory.dmp
memory/4800-159-0x0000000001010000-0x000000000103F000-memory.dmp
memory/4800-161-0x0000000002D80000-0x0000000002E13000-memory.dmp