tofsee | 0b4e7c6877bbbebc188a36c140df6bc8f965fc654430a2500ac9751a4ee9a9e3

General

Target

2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe
Size

11.0MB
MD5

e8f4c1bf9f2eb9fca02003ae5f3ce23a
SHA1

8a85b54364461b67e4a4e34b00c765e4c8591f2e
SHA256

0b4e7c6877bbbebc188a36c140df6bc8f965fc654430a2500ac9751a4ee9a9e3
SHA512

4cd052f6be7bca6ee82dbd05d9d357be8b8f69989009165fd4a9592a0920d2cf742b01ef17b0d9ba115a9e1f2a2b88fea0562e082d2232cd1f827227391c7f68
SSDEEP

196608:QyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXv:lXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXf

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
50	3864	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2612	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\ayyhlvqz\ImagePath = "C:\\Windows\\SysWOW64\\ayyhlvqz\\oaznyiqk.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-1-5-21-3296967594-3563063956-581523229-1000\Control Panel\International\Geo\Nation	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe

Deletes itself 1 IoCs

pid	Process
1612	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	oaznyiqk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4844 set thread context of 1612	4844	oaznyiqk.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4640	sc.exe
4548	sc.exe
3340	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 10 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	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.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	oaznyiqk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2320	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 4552	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	92
PID 3420 wrote to memory of 4552	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	92
PID 3420 wrote to memory of 4552	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	92
PID 3420 wrote to memory of 1080	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	94
PID 3420 wrote to memory of 1080	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	94
PID 3420 wrote to memory of 1080	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	94
PID 3420 wrote to memory of 4640	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	96
PID 3420 wrote to memory of 4640	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	96
PID 3420 wrote to memory of 4640	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	96
PID 3420 wrote to memory of 4548	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	98
PID 3420 wrote to memory of 4548	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	98
PID 3420 wrote to memory of 4548	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	98
PID 3420 wrote to memory of 3340	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	100
PID 3420 wrote to memory of 3340	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	100
PID 3420 wrote to memory of 3340	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	100
PID 4844 wrote to memory of 1612	4844	oaznyiqk.exe	103
PID 4844 wrote to memory of 1612	4844	oaznyiqk.exe	103
PID 4844 wrote to memory of 1612	4844	oaznyiqk.exe	103
PID 4844 wrote to memory of 1612	4844	oaznyiqk.exe	103
PID 4844 wrote to memory of 1612	4844	oaznyiqk.exe	103
PID 3420 wrote to memory of 2612	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	104
PID 3420 wrote to memory of 2612	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	104
PID 3420 wrote to memory of 2612	3420	2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ayyhlvqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oaznyiqk.exe" C:\Windows\SysWOW64\ayyhlvqz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1080
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ayyhlvqz binPath= "C:\Windows\SysWOW64\ayyhlvqz\oaznyiqk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ayyhlvqz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ayyhlvqz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3340
- 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:2612

C:\Windows\SysWOW64\ayyhlvqz\oaznyiqk.exe
C:\Windows\SysWOW64\ayyhlvqz\oaznyiqk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-12_e8f4c1bf9f2eb9fca02003ae5f3ce23a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1612

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7NzJFMTA4ODYtQUM3Ri00NjI2LTgzNEEtQzAwNzRDQUI2MzJFfSIgdXNlcmlkPSJ7Q0ExQjU5OTAtNEE4NC00QkM0LUIzNTctODM2QjA3RERGREYwfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7QTFCMjM2NzgtQzBENy00QjE5LUE5OTEtNzRDMzZGRkRCNjA4fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1Mzk0MzYwMTA2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2320

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.6MB

MD5
9eac6bdaeb2e3db30db46eb391a6ac57

SHA1
6018708b66821120edc1f24bf410db2cd3238e0b

SHA256
ef75e31fb66394ae9078f6271145c6bca4c598f48434a15b034be975112c7d27

SHA512
891fe545d7a02ba9e4e226c676259899c3dabbfaf99b17248b3b081c55917f9066b9fb071da27d492d6d70a06eaeece6b62abf3a41d8f021b509caf3e968a582

Download Submit
memory/1612-11-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/1612-22-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/1612-21-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/1612-20-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/1612-14-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/3420-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3420-18-0x00000000007A0000-0x00000000007B3000-memory.dmp

Filesize
76KB

Download
memory/3420-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3420-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/3420-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3420-2-0x00000000007A0000-0x00000000007B3000-memory.dmp

Filesize
76KB

Download
memory/4844-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4844-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4844-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4844-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads