tofsee | 0d2b433856638eed525068a6bb6f84417c63edccc0067ff6e6151edbcc1240a1

General

Target

2025-02-01_3995761237124e0f137cded35908b237_mafia.exe
Size

12.8MB
MD5

3995761237124e0f137cded35908b237
SHA1

16813f1fa14675c902afe02172c5c3f60cf6d78f
SHA256

0d2b433856638eed525068a6bb6f84417c63edccc0067ff6e6151edbcc1240a1
SHA512

60c4a255036b7e6a17e218260f05fa5683d8bf5007ac086490833081ffb5f597c37fca7d0e8e9f3dee996df6313cc1c77fbecb1db512ff5ad1e0db586bcaa2c9
SSDEEP

393216:rXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

Score

10^/10

tofsee defense_evasion discovery 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
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
516	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\xjzkkqyp\ImagePath = "C:\\Windows\\SysWOW64\\xjzkkqyp\\zqywgbiw.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe

Deletes itself 1 IoCs

pid	Process
2200	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1816	zqywgbiw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 2200	1816	zqywgbiw.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3248	sc.exe
3220	sc.exe
3688	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_3995761237124e0f137cded35908b237_mafia.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	zqywgbiw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2532	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	86
PID 1980 wrote to memory of 2532	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	86
PID 1980 wrote to memory of 2532	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	86
PID 1980 wrote to memory of 4960	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	88
PID 1980 wrote to memory of 4960	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	88
PID 1980 wrote to memory of 4960	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	88
PID 1980 wrote to memory of 3248	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	90
PID 1980 wrote to memory of 3248	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	90
PID 1980 wrote to memory of 3248	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	90
PID 1980 wrote to memory of 3220	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	92
PID 1980 wrote to memory of 3220	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	92
PID 1980 wrote to memory of 3220	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	92
PID 1980 wrote to memory of 3688	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	94
PID 1980 wrote to memory of 3688	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	94
PID 1980 wrote to memory of 3688	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	94
PID 1816 wrote to memory of 2200	1816	zqywgbiw.exe	98
PID 1816 wrote to memory of 2200	1816	zqywgbiw.exe	98
PID 1816 wrote to memory of 2200	1816	zqywgbiw.exe	98
PID 1980 wrote to memory of 516	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	97
PID 1980 wrote to memory of 516	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	97
PID 1980 wrote to memory of 516	1980	2025-02-01_3995761237124e0f137cded35908b237_mafia.exe	97
PID 1816 wrote to memory of 2200	1816	zqywgbiw.exe	98
PID 1816 wrote to memory of 2200	1816	zqywgbiw.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-01_3995761237124e0f137cded35908b237_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3995761237124e0f137cded35908b237_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xjzkkqyp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zqywgbiw.exe" C:\Windows\SysWOW64\xjzkkqyp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xjzkkqyp binPath= "C:\Windows\SysWOW64\xjzkkqyp\zqywgbiw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3995761237124e0f137cded35908b237_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3248
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xjzkkqyp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xjzkkqyp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3688
- 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:516

C:\Windows\SysWOW64\xjzkkqyp\zqywgbiw.exe
C:\Windows\SysWOW64\xjzkkqyp\zqywgbiw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_3995761237124e0f137cded35908b237_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2200

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

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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\zqywgbiw.exe

Filesize
10.5MB

MD5
9f0f7c586f7ce40d911651f0987fb75e

SHA1
ec8a8f5320569256b2075697b8f154456b478d50

SHA256
54bf5efa77a1f2106426687bea0e421338daf7fdba76d81518891e40c0a481c4

SHA512
e4b8e7656af657571ba5b270dd4fa9c9a8e9cbe09d0f0a8b16ab28d167b31812bdd1e66d7e5eb9fd3b7d23493493c4ed4dde6c1ea1b17349fa4ce3013caeef2e

Download Submit
memory/1816-18-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1816-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1980-11-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/1980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/1980-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1980-2-0x0000000000590000-0x00000000005A3000-memory.dmp

Filesize
76KB

Download
memory/2200-10-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2200-16-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2200-19-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2200-20-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads