tofsee | 219d932f434fc11445f50997d6e31fae837d7e73c21c72f08a04fc5aa256c918

General

Target

2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe
Size

10.6MB
MD5

045b7c038adfcc63442ae9f1b2f2cf06
SHA1

8848e4415c6a291f43ea6c46d27ca1be40f2e1d9
SHA256

219d932f434fc11445f50997d6e31fae837d7e73c21c72f08a04fc5aa256c918
SHA512

001993c4b6ff4efac99eefccc3171fba234b645b91e0e627f1899ddff2a9338aeebe1576fb7f2f79dda297c37dc41415ce9d99dae304d8dfa0a261e5b82679b9
SSDEEP

24576:OpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttb:iooB

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
55	4448	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
892	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\mozmemvl\ImagePath = "C:\\Windows\\SysWOW64\\mozmemvl\\xjiwhrzt.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-1-5-21-1318997816-2171176372-1451785247-1000\Control Panel\International\Geo\Nation	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe

Deletes itself 1 IoCs

pid	Process
2592	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1652	xjiwhrzt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 2592	1652	xjiwhrzt.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1712	sc.exe
1412	sc.exe
3916	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
1900	4360	WerFault.exe	87
3688	1652	WerFault.exe	98

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xjiwhrzt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.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
4892	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 1768	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	88
PID 4360 wrote to memory of 1768	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	88
PID 4360 wrote to memory of 1768	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	88
PID 4360 wrote to memory of 456	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	90
PID 4360 wrote to memory of 456	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	90
PID 4360 wrote to memory of 456	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	90
PID 4360 wrote to memory of 3916	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	92
PID 4360 wrote to memory of 3916	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	92
PID 4360 wrote to memory of 3916	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	92
PID 4360 wrote to memory of 1712	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	94
PID 4360 wrote to memory of 1712	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	94
PID 4360 wrote to memory of 1712	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	94
PID 4360 wrote to memory of 1412	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	96
PID 4360 wrote to memory of 1412	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	96
PID 4360 wrote to memory of 1412	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	96
PID 4360 wrote to memory of 892	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	99
PID 4360 wrote to memory of 892	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	99
PID 4360 wrote to memory of 892	4360	2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe	99
PID 1652 wrote to memory of 2592	1652	xjiwhrzt.exe	104
PID 1652 wrote to memory of 2592	1652	xjiwhrzt.exe	104
PID 1652 wrote to memory of 2592	1652	xjiwhrzt.exe	104
PID 1652 wrote to memory of 2592	1652	xjiwhrzt.exe	104
PID 1652 wrote to memory of 2592	1652	xjiwhrzt.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mozmemvl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjiwhrzt.exe" C:\Windows\SysWOW64\mozmemvl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mozmemvl binPath= "C:\Windows\SysWOW64\mozmemvl\xjiwhrzt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mozmemvl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mozmemvl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1412
- 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:892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4360 -s 1200
  2⤵
  - Program crash
  PID:1900

C:\Windows\SysWOW64\mozmemvl\xjiwhrzt.exe
C:\Windows\SysWOW64\mozmemvl\xjiwhrzt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-13_045b7c038adfcc63442ae9f1b2f2cf06_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 532
  2⤵
  - Program crash
  PID:3688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4360 -ip 4360
1⤵
PID:2084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1652 -ip 1652
1⤵
PID:1872

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NTI3ODkyMDA2Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4892

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

Replay Monitor

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Downloads

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

Filesize
11.7MB

MD5
7e27ea118ecc8ccdb2e21d1de837b0ca

SHA1
bad160e896bf030d5f6a12502240bbb8be3f6ad7

SHA256
bff0acc9eddb9094d94feadf2bcc964c2e97687796cbda0a4110ab5a107473ce

SHA512
21b63e7fb1fa8b65f91edbb8134b941a22d7e9a7d132de2b9571fa71fc367ec929081b1ffb213d2a7c187bd68e13c5c3ef89c2b5637170e54d481295f0f010c9

Download Submit
memory/1652-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1652-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1652-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1652-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2592-14-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/2592-16-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/2592-17-0x0000000000F90000-0x0000000000FA5000-memory.dmp

Filesize
84KB

Download
memory/4360-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4360-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4360-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4360-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4360-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4360-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads