tofsee | d57c02540dc14ad236566f8cc606ab3ac6fb385a851864cce7d31f1996c8ec2c

General

Target

2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe
Size

10.3MB
MD5

ab58c09d7e3bf8ee8c9da6d82d849ac4
SHA1

caea801f01a6a68ead4f76228c4912d3a9b393d4
SHA256

d57c02540dc14ad236566f8cc606ab3ac6fb385a851864cce7d31f1996c8ec2c
SHA512

7cdd48888a191bbc51fa80acf64a527bb71f114805bfaec3911e6db5b44ef879a17a8428d981717c420b5a16f4b154b7c3979b24599b69b3e3f9020f1dcebfdb
SSDEEP

3072:QLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/C:tOMdRQr7OB0ypmMXnl8XEPM3noSWOCP

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
29	872	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
3480	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\pumhwntj\ImagePath = "C:\\Windows\\SysWOW64\\pumhwntj\\mktudzok.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-1-5-21-3932017190-1449707826-1445630-1000\Control Panel\International\Geo\Nation	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe

Deletes itself 1 IoCs

pid	Process
4172	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4556	mktudzok.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4556 set thread context of 4172	4556	mktudzok.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
4044	sc.exe
4840	sc.exe
2556	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3756	1060	WerFault.exe	85
4896	4556	WerFault.exe	101

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	MicrosoftEdgeUpdate.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mktudzok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_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

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
4628	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 4932	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	91
PID 1060 wrote to memory of 4932	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	91
PID 1060 wrote to memory of 4932	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	91
PID 1060 wrote to memory of 3136	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	93
PID 1060 wrote to memory of 3136	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	93
PID 1060 wrote to memory of 3136	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	93
PID 1060 wrote to memory of 4044	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	95
PID 1060 wrote to memory of 4044	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	95
PID 1060 wrote to memory of 4044	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	95
PID 1060 wrote to memory of 4840	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	97
PID 1060 wrote to memory of 4840	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	97
PID 1060 wrote to memory of 4840	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	97
PID 1060 wrote to memory of 2556	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	99
PID 1060 wrote to memory of 2556	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	99
PID 1060 wrote to memory of 2556	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	99
PID 1060 wrote to memory of 3480	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	102
PID 1060 wrote to memory of 3480	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	102
PID 1060 wrote to memory of 3480	1060	2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe	102
PID 4556 wrote to memory of 4172	4556	mktudzok.exe	107
PID 4556 wrote to memory of 4172	4556	mktudzok.exe	107
PID 4556 wrote to memory of 4172	4556	mktudzok.exe	107
PID 4556 wrote to memory of 4172	4556	mktudzok.exe	107
PID 4556 wrote to memory of 4172	4556	mktudzok.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pumhwntj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mktudzok.exe" C:\Windows\SysWOW64\pumhwntj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pumhwntj binPath= "C:\Windows\SysWOW64\pumhwntj\mktudzok.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pumhwntj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pumhwntj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- 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:3480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 1040
  2⤵
  - Program crash
  PID:3756

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7QzhBNDlGRjAtQjQ1Ny00MkM0LTg1MkItNTc2MkZDNUMyNUM4fSIgdXNlcmlkPSJ7MjZGRjI2MTAtNzg5Ri00OTBDLUJBNkUtRDlGOUQyRjExRjA3fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7RDU4NTAxOTYtRTJBRS00QzA1LUI5QUMtNDE2QjgxNTkxNDc2fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODg5MjkzODAyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4628

C:\Windows\SysWOW64\pumhwntj\mktudzok.exe
C:\Windows\SysWOW64\pumhwntj\mktudzok.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-08_ab58c09d7e3bf8ee8c9da6d82d849ac4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4172
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 532
  2⤵
  - Program crash
  PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1060 -ip 1060
1⤵
PID:2388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4556 -ip 4556
1⤵
PID:1056

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\mktudzok.exe

Filesize
12.1MB

MD5
fad69f38a4097171926d46a26d6e4867

SHA1
fe3952a486f93312bd16a83675f09e6d7bea2c0a

SHA256
44afc4b2fb0d597a714789500c04e2a45c0f1d14f27d0d0155538e4046ea36d5

SHA512
4a664501d0c8aecc6003139eabb3e14b86032a327f5e00307e1fd960b98b30859d7c20f5bc42466893ab0f8bde1648b6d0d61b7e463e5fe7a3e02547c7f28040

Download Submit
memory/1060-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/1060-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/1060-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1060-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1060-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1060-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4172-11-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/4172-13-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/4172-14-0x0000000000C50000-0x0000000000C65000-memory.dmp

Filesize
84KB

Download
memory/4556-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads