tofsee | 03a8782d01757fe8bb672e1a17074c9ba419a888a691754436908cbeffffc89c

General

Target

2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe
Size

10.2MB
MD5

94d9d5513aa7269bb2734c7c1e670541
SHA1

0328f7cfd4f148160887f41f7e0a0af34fde2a92
SHA256

03a8782d01757fe8bb672e1a17074c9ba419a888a691754436908cbeffffc89c
SHA512

acfe7fdcda9189ef4a46e34c65da738a066eba06693cc507ccef973e122899bb60bacec6fb144a271661be18b351a435f4002062c32c039e6e6b8978553974f8
SSDEEP

6144:/LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:kTYe+D2jFu+iZoUFhAz

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
4192	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\honwfeg\ImagePath = "C:\\Windows\\SysWOW64\\honwfeg\\ttufabzh.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe

Deletes itself 1 IoCs

pid	Process
5056	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4452	ttufabzh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4452 set thread context of 5056	4452	ttufabzh.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2828	sc.exe
368	sc.exe
4700	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
1592	4824	WerFault.exe	84
1752	4452	WerFault.exe	96

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	ttufabzh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_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	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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 2196	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	85
PID 4824 wrote to memory of 2196	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	85
PID 4824 wrote to memory of 2196	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	85
PID 4824 wrote to memory of 4488	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	87
PID 4824 wrote to memory of 4488	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	87
PID 4824 wrote to memory of 4488	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	87
PID 4824 wrote to memory of 368	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	89
PID 4824 wrote to memory of 368	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	89
PID 4824 wrote to memory of 368	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	89
PID 4824 wrote to memory of 4700	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	91
PID 4824 wrote to memory of 4700	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	91
PID 4824 wrote to memory of 4700	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	91
PID 4824 wrote to memory of 2828	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	94
PID 4824 wrote to memory of 2828	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	94
PID 4824 wrote to memory of 2828	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	94
PID 4824 wrote to memory of 4192	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	97
PID 4824 wrote to memory of 4192	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	97
PID 4824 wrote to memory of 4192	4824	2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe	97
PID 4452 wrote to memory of 5056	4452	ttufabzh.exe	103
PID 4452 wrote to memory of 5056	4452	ttufabzh.exe	103
PID 4452 wrote to memory of 5056	4452	ttufabzh.exe	103
PID 4452 wrote to memory of 5056	4452	ttufabzh.exe	103
PID 4452 wrote to memory of 5056	4452	ttufabzh.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\honwfeg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ttufabzh.exe" C:\Windows\SysWOW64\honwfeg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create honwfeg binPath= "C:\Windows\SysWOW64\honwfeg\ttufabzh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description honwfeg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start honwfeg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- 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:4192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 788
  2⤵
  - Program crash
  PID:1592

C:\Windows\SysWOW64\honwfeg\ttufabzh.exe
C:\Windows\SysWOW64\honwfeg\ttufabzh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_94d9d5513aa7269bb2734c7c1e670541_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4452 -s 516
  2⤵
  - Program crash
  PID:1752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4824 -ip 4824
1⤵
PID:3128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4452 -ip 4452
1⤵
PID:1820

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\ttufabzh.exe

Filesize
11.6MB

MD5
cd57c05ad8a063d2ee5093c556419ce9

SHA1
af591dfce6d7818a5acf2fe7038d2e219e078a53

SHA256
d7edc788cb8acee74cb0d79fe1fcc46884a028c2acf77417a51fc6d5fdc9eb00

SHA512
12ab4a6cd306b15a1df02638ca87e47bb6f33ae039979e81257ea15d780881a620aa9b238a4df4051cf15db884932fb9687a78a657ebd33f7a99efd2bb1223d2

Download Submit
memory/4452-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4452-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4452-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4452-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4824-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4824-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/4824-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/4824-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4824-14-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/4824-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/5056-11-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download
memory/5056-18-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download
memory/5056-19-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads