tofsee | 49fc37c7bc96e3404766250bc2dcddd9f68affee187305de2d1311d38b01411a

General

Target

2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe
Size

13.7MB
MD5

cecfedd80e6ce58f5f51f89eede80cb1
SHA1

672458345dd8a157144a9a92c9581dc6ed7b38fb
SHA256

49fc37c7bc96e3404766250bc2dcddd9f68affee187305de2d1311d38b01411a
SHA512

be151d034df69a6e200fd0e9dd1bf13fd87d4a96c928aa777d6607c5d5bb75a594c6e5bd5af88d1e43c558bd75b12eab61843d43921d15e89894c6a535e182ff
SSDEEP

6144:7LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ9:QTYe+D2jFu+iZoUFhAz

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
1748	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\fzsjgrka\ImagePath = "C:\\Windows\\SysWOW64\\fzsjgrka\\mggxirik.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe

Deletes itself 1 IoCs

pid	Process
2196	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3988	mggxirik.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3988 set thread context of 2196	3988	mggxirik.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1300	sc.exe
4740	sc.exe
3308	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
3356	4608	WerFault.exe	81
3612	3988	WerFault.exe	92

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	svchost.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	mggxirik.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 5112	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	82
PID 4608 wrote to memory of 5112	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	82
PID 4608 wrote to memory of 5112	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	82
PID 4608 wrote to memory of 4560	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	84
PID 4608 wrote to memory of 4560	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	84
PID 4608 wrote to memory of 4560	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	84
PID 4608 wrote to memory of 1300	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	86
PID 4608 wrote to memory of 1300	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	86
PID 4608 wrote to memory of 1300	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	86
PID 4608 wrote to memory of 4740	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	88
PID 4608 wrote to memory of 4740	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	88
PID 4608 wrote to memory of 4740	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	88
PID 4608 wrote to memory of 3308	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	90
PID 4608 wrote to memory of 3308	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	90
PID 4608 wrote to memory of 3308	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	90
PID 4608 wrote to memory of 1748	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	93
PID 4608 wrote to memory of 1748	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	93
PID 4608 wrote to memory of 1748	4608	2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe	93
PID 3988 wrote to memory of 2196	3988	mggxirik.exe	97
PID 3988 wrote to memory of 2196	3988	mggxirik.exe	97
PID 3988 wrote to memory of 2196	3988	mggxirik.exe	97
PID 3988 wrote to memory of 2196	3988	mggxirik.exe	97
PID 3988 wrote to memory of 2196	3988	mggxirik.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fzsjgrka\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mggxirik.exe" C:\Windows\SysWOW64\fzsjgrka\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fzsjgrka binPath= "C:\Windows\SysWOW64\fzsjgrka\mggxirik.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fzsjgrka "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fzsjgrka
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3308
- 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:1748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 1036
  2⤵
  - Program crash
  PID:3356

C:\Windows\SysWOW64\fzsjgrka\mggxirik.exe
C:\Windows\SysWOW64\fzsjgrka\mggxirik.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_cecfedd80e6ce58f5f51f89eede80cb1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3988
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 528
  2⤵
  - Program crash
  PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4608 -ip 4608
1⤵
PID:1588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3988 -ip 3988
1⤵
PID:3788

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\mggxirik.exe

Filesize
13.7MB

MD5
7266cf751652785ab796745f13aca2d2

SHA1
09b6154faa0ec98c633a0a5e5aab285e7cc5dcaf

SHA256
2f5024652465ac3cdbd200287b9b6cd59d36f5452765e9dc0e8765f3ffe8921e

SHA512
1092fac84a260adecfb28ad34f6c59dcb84088f442f29772275da182c034c66bae968cfe0ebd9a57a8f54dc66428a0401468745e9987ac27f04145cbe9e99c38

Download Submit
memory/2196-13-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2196-19-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2196-21-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2196-20-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/2196-10-0x0000000000DB0000-0x0000000000DC5000-memory.dmp

Filesize
84KB

Download
memory/3988-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3988-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3988-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4608-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4608-17-0x0000000000800000-0x0000000000813000-memory.dmp

Filesize
76KB

Download
memory/4608-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4608-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4608-1-0x0000000000880000-0x0000000000980000-memory.dmp

Filesize
1024KB

Download
memory/4608-2-0x0000000000800000-0x0000000000813000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads