tofsee | a0abc9943a508f9fe58aa49a3d90f88359c97cad7da5e3879dcd5ad86f65a98f

General

Target

2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
Size

14.1MB
MD5

8af6002a981252a165b5d1e4922816b5
SHA1

c0123dc3b19fdc3946afc95876956980e46357c7
SHA256

a0abc9943a508f9fe58aa49a3d90f88359c97cad7da5e3879dcd5ad86f65a98f
SHA512

56d900a15734a32fbece3831ca9cf0c1a887a3831d11c67fa758cd10681272cbdf4c315ce76c175e304c31328fd35504abb55a45d1d4350280f183a41ea0a2ad
SSDEEP

49152:vVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGW:vVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\taesygih = "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

Processes:

netsh.exe

pid process

2696 netsh.exe

pid	process
2696	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\taesygih\ImagePath = "C:\\Windows\\SysWOW64\\taesygih\\tseafpzm.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

428 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tseafpzm.exe

pid process

2636 tseafpzm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tseafpzm.exe

description pid process target process

PID 2636 set thread context of 428 2636 tseafpzm.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2900 sc.exe
1824 sc.exe
2676 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
428	svchost.exe

pid	process
2636	tseafpzm.exe

description	pid	process	target process
PID 2636 set thread context of 428	2636	tseafpzm.exe	svchost.exe

pid	process
2900	sc.exe
1824	sc.exe
2676	sc.exe

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

Processes:

netsh.exe

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

Processes:

svchost.exe2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.execmd.execmd.exesc.exesc.exesc.exenetsh.exetseafpzm.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tseafpzm.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exetseafpzm.exe

description	pid	process	target process
PID 2760 wrote to memory of 2820	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 2820	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 2820	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 2820	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 3004	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 3004	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 3004	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 3004	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	cmd.exe
PID 2760 wrote to memory of 2900	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2900	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2900	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2900	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 1824	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 1824	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 1824	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 1824	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2676	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2676	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2676	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2676	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	sc.exe
PID 2760 wrote to memory of 2696	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2760 wrote to memory of 2696	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2760 wrote to memory of 2696	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2760 wrote to memory of 2696	2760	2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe	netsh.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe
PID 2636 wrote to memory of 428	2636	tseafpzm.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\taesygih\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tseafpzm.exe" C:\Windows\SysWOW64\taesygih\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create taesygih binPath= "C:\Windows\SysWOW64\taesygih\tseafpzm.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description taesygih "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start taesygih
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:2696

C:\Windows\SysWOW64\taesygih\tseafpzm.exe
C:\Windows\SysWOW64\taesygih\tseafpzm.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_8af6002a981252a165b5d1e4922816b5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
14.8MB

MD5
2346af3cf80cca364c2759d133fac84f

SHA1
287a731d7e98cfebc2d1dfdb8bbfb3536cc9c3ce

SHA256
65fac5c4f21fb238032bb2680aed68881f423164c5e3ef89bb12cbab2e65b791

SHA512
95424dbf06ef1bf87c86c22d8bc2faa3cdccb21ce7470418ec4538b7be5cef33d37bf832bcc970b5f74b97d3d9d1bb646cd21a155d61a2af36b09ba54052a198

Download Submit
memory/428-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/428-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/428-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/428-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/428-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-16-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2760-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2760-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2760-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2760-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2760-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads