tofsee | cdf608f60357488ef40b0977e2f39dba1f9180bc7a6f338b4500c7935faab9b3

General

Target

2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe
Size

13.7MB
MD5

9e52058daec83a315865f8c90795d4c8
SHA1

a8cdaaeac7c10726f06d7ea25eb60964203cc39d
SHA256

cdf608f60357488ef40b0977e2f39dba1f9180bc7a6f338b4500c7935faab9b3
SHA512

1372a2124528d8dade2c23ffb21443d20c84a42b142b42c3262607aff8cd20ebc68410665b294c5db3c685914bfd6733fb9e1a32a39c7efd4f4573c3c95c11db
SSDEEP

24576:66WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQo:zWdLQk

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
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
1584	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\cdnzwnyb\ImagePath = "C:\\Windows\\SysWOW64\\cdnzwnyb\\mdljtovj.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe

Deletes itself 1 IoCs

pid	Process
3164	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4880	mdljtovj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4880 set thread context of 3164	4880	mdljtovj.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1748	sc.exe
4024	sc.exe
2224	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
732	1048	WerFault.exe	82
3960	4880	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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
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	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	mdljtovj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2588	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	83
PID 1048 wrote to memory of 2588	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	83
PID 1048 wrote to memory of 2588	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	83
PID 1048 wrote to memory of 4744	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	85
PID 1048 wrote to memory of 4744	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	85
PID 1048 wrote to memory of 4744	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	85
PID 1048 wrote to memory of 1748	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	87
PID 1048 wrote to memory of 1748	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	87
PID 1048 wrote to memory of 1748	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	87
PID 1048 wrote to memory of 4024	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	89
PID 1048 wrote to memory of 4024	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	89
PID 1048 wrote to memory of 4024	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	89
PID 1048 wrote to memory of 2224	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	91
PID 1048 wrote to memory of 2224	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	91
PID 1048 wrote to memory of 2224	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	91
PID 1048 wrote to memory of 1584	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	94
PID 1048 wrote to memory of 1584	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	94
PID 1048 wrote to memory of 1584	1048	2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe	94
PID 4880 wrote to memory of 3164	4880	mdljtovj.exe	100
PID 4880 wrote to memory of 3164	4880	mdljtovj.exe	100
PID 4880 wrote to memory of 3164	4880	mdljtovj.exe	100
PID 4880 wrote to memory of 3164	4880	mdljtovj.exe	100
PID 4880 wrote to memory of 3164	4880	mdljtovj.exe	100

C:\Users\Admin\AppData\Local\Temp\2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cdnzwnyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mdljtovj.exe" C:\Windows\SysWOW64\cdnzwnyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cdnzwnyb binPath= "C:\Windows\SysWOW64\cdnzwnyb\mdljtovj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cdnzwnyb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cdnzwnyb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2224
- 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:1584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 1040
  2⤵
  - Program crash
  PID:732

C:\Windows\SysWOW64\cdnzwnyb\mdljtovj.exe
C:\Windows\SysWOW64\cdnzwnyb\mdljtovj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-10_9e52058daec83a315865f8c90795d4c8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 536
  2⤵
  - Program crash
  PID:3960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1048 -ip 1048
1⤵
PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4880 -ip 4880
1⤵
PID:2924

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\mdljtovj.exe

Filesize
10.5MB

MD5
7d064ac0ba01bfaaf3edc877138b98a7

SHA1
af0dd89255baff0fa2a703fe0b6ac19079a59bb3

SHA256
a7d48823e516b68dadceddc4ce30ab7377158f6210743ef142a808d6de53a245

SHA512
605f9a02d13c174d7646c5feb84fdb2f5beed671fc974104b118d3eccacd93fc2d3745e06aeffe85f71700b74240fd98e2ae1f344027b1ab458076303d4c095a

Download Submit
memory/1048-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1048-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1048-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1048-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1048-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1048-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/3164-14-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/3164-16-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/3164-17-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/4880-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4880-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4880-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4880-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads