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Analysis
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max time kernel
147s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2024, 20:12
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe
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Size
12.3MB
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MD5
1d4ae3864e8d239273636e01884abbab
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SHA1
a9392dc5b5ec50e26d0508bea5e9736659ad7a77
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SHA256
1e5987d8df27ee0acc7e6028cff8bbd80467d86fe4155a72e43a13f611f5cfb9
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SHA512
b9fb32811fcbcd923a7fd22b681aa2bf8164a65679c4a1f2b2eb0460ed3bd2a42d800682f688f2272a42ca846907b6b74acf4e34e6528af5d02f8d2a9324ec5f
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SSDEEP
3072:xLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:0OMdRQr7OB0ypmMXnl8XEPM3noSWOC
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Tofsee family
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Creates new service(s) 2 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 3540 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\brnpsdcp\ImagePath = "C:\\Windows\\SysWOW64\\brnpsdcp\\yhbgyxso.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe -
Deletes itself 1 IoCs
pid Process 3544 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4976 yhbgyxso.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4976 set thread context of 3544 4976 yhbgyxso.exe 100 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 2844 sc.exe 2556 sc.exe 3184 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh netsh.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 4524 3116 WerFault.exe 82 3744 4976 WerFault.exe 93 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yhbgyxso.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 3116 wrote to memory of 1592 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 83 PID 3116 wrote to memory of 1592 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 83 PID 3116 wrote to memory of 1592 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 83 PID 3116 wrote to memory of 2148 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 85 PID 3116 wrote to memory of 2148 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 85 PID 3116 wrote to memory of 2148 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 85 PID 3116 wrote to memory of 2844 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 87 PID 3116 wrote to memory of 2844 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 87 PID 3116 wrote to memory of 2844 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 87 PID 3116 wrote to memory of 2556 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 89 PID 3116 wrote to memory of 2556 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 89 PID 3116 wrote to memory of 2556 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 89 PID 3116 wrote to memory of 3184 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 91 PID 3116 wrote to memory of 3184 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 91 PID 3116 wrote to memory of 3184 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 91 PID 3116 wrote to memory of 3540 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 94 PID 3116 wrote to memory of 3540 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 94 PID 3116 wrote to memory of 3540 3116 2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe 94 PID 4976 wrote to memory of 3544 4976 yhbgyxso.exe 100 PID 4976 wrote to memory of 3544 4976 yhbgyxso.exe 100 PID 4976 wrote to memory of 3544 4976 yhbgyxso.exe 100 PID 4976 wrote to memory of 3544 4976 yhbgyxso.exe 100 PID 4976 wrote to memory of 3544 4976 yhbgyxso.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\brnpsdcp\2⤵
- System Location Discovery: System Language Discovery
PID:1592
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yhbgyxso.exe" C:\Windows\SysWOW64\brnpsdcp\2⤵
- System Location Discovery: System Language Discovery
PID:2148
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create brnpsdcp binPath= "C:\Windows\SysWOW64\brnpsdcp\yhbgyxso.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2844
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description brnpsdcp "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2556
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start brnpsdcp2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:3184
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:3540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 6762⤵
- Program crash
PID:4524
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C:\Windows\SysWOW64\brnpsdcp\yhbgyxso.exeC:\Windows\SysWOW64\brnpsdcp\yhbgyxso.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-26_1d4ae3864e8d239273636e01884abbab_mafia.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4976 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:3544
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 5082⤵
- Program crash
PID:3744
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3116 -ip 31161⤵PID:2792
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4976 -ip 49761⤵PID:3840
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Replay Monitor
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Downloads
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Filesize
12.8MB
MD563267c57679bde0319eb4897be68f584
SHA1682d9d27613bc2ee21d311306e4708c9ccc045b3
SHA2562470daa6a668eafed372640580ee665b7631b83ac0ef96c636bf683c0e37fd26
SHA5128da97361470b6a00ce2c467b9c2344a65cf33152292c53e63c42c88a0f7fca952bc79cfa2cb8a5948c61006a0550930a4e9d10a76663d53ad9163c3ed09404c8