tofsee | c51d1bc621dc0db87e6aaaf6b6a51cd1a941ed42b932031d7fad7c0ceea5f8d9

Analysis

max time kernel
146s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 01:14

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General

Target

2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe
Size

10.9MB
MD5

bcf405aa2a91aae311e9a0d51a2014ac
SHA1

bb5db982955a4a866d638c2787a2f54e50a9c59e
SHA256

c51d1bc621dc0db87e6aaaf6b6a51cd1a941ed42b932031d7fad7c0ceea5f8d9
SHA512

39a17d671c980468789c7b87e242f580e593adc1e380bd328338f00ac43178ba58c54eb3b192019a0d840ed83440aa787a621a90218613f159fe4e2204356c81
SSDEEP

49152:dLFuiE888888888888888888888888888888888888888888888888888888888E:dLM

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zkwkyifw = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2632	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\zkwkyifw\ImagePath = "C:\\Windows\\SysWOW64\\zkwkyifw\\saptgenn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2416	saptgenn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 2664	2416	saptgenn.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2736	sc.exe
2932	sc.exe
2784	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

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

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.

discovery

System Language Discovery

T1614.001

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	saptgenn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2892	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	30
PID 2484 wrote to memory of 2892	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	30
PID 2484 wrote to memory of 2892	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	30
PID 2484 wrote to memory of 2892	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	30
PID 2484 wrote to memory of 2764	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	32
PID 2484 wrote to memory of 2764	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	32
PID 2484 wrote to memory of 2764	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	32
PID 2484 wrote to memory of 2764	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	32
PID 2484 wrote to memory of 2736	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	34
PID 2484 wrote to memory of 2736	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	34
PID 2484 wrote to memory of 2736	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	34
PID 2484 wrote to memory of 2736	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	34
PID 2484 wrote to memory of 2932	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	36
PID 2484 wrote to memory of 2932	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	36
PID 2484 wrote to memory of 2932	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	36
PID 2484 wrote to memory of 2932	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	36
PID 2484 wrote to memory of 2784	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	38
PID 2484 wrote to memory of 2784	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	38
PID 2484 wrote to memory of 2784	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	38
PID 2484 wrote to memory of 2784	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	38
PID 2484 wrote to memory of 2632	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	41
PID 2484 wrote to memory of 2632	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	41
PID 2484 wrote to memory of 2632	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	41
PID 2484 wrote to memory of 2632	2484	2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe	41
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43
PID 2416 wrote to memory of 2664	2416	saptgenn.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zkwkyifw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\saptgenn.exe" C:\Windows\SysWOW64\zkwkyifw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zkwkyifw binPath= "C:\Windows\SysWOW64\zkwkyifw\saptgenn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zkwkyifw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zkwkyifw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- 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>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2632

C:\Windows\SysWOW64\zkwkyifw\saptgenn.exe
C:\Windows\SysWOW64\zkwkyifw\saptgenn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_bcf405aa2a91aae311e9a0d51a2014ac_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\saptgenn.exe

Filesize
12.4MB

MD5
f8184a892685c9bd8121cd6370723790

SHA1
e2b443fcffcc69ff304dabdd37f6a0cc22c59799

SHA256
9bacef5e8fffca6deb95e7666a27f764b47aae1c32562ebb2d498011091df4aa

SHA512
6ced6c1746665bc5aae6195f4b2b60d0e13d12917d4f7f371873b88bec90205e9cb68c18b82143c9c3bcb288458e0c9549fb6bd58efcfec345e36a04ec3199cb

Download Submit
memory/2416-18-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2484-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2484-9-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

Filesize
1024KB

Download
memory/2484-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2484-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

Filesize
1024KB

Download
memory/2484-7-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/2484-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2664-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2664-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads