tofsee | 12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930

General

Target

2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
Size

11.8MB
MD5

24bd85cfd4f367380324d69d46805978
SHA1

9ae1e14cd3733e22bf9be7f9fb8dc06ec4425abc
SHA256

12b0178d8d6ad98ac457790240a3c04c3b74d3b47876ab525cfcf8c0cfcfd930
SHA512

473902b4699dbc65d9d501f2cf3241223f039116a74dd66ea9203d4330f876956c6aa70fbaf8a00d0190e28c32dd4a00e37f0da952b6d55d0a07271d2e17b289
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
3008	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\zupfhyju\ImagePath = "C:\\Windows\\SysWOW64\\zupfhyju\\jiwymjkc.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe

Deletes itself 1 IoCs

pid	Process
756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1508	jiwymjkc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1508 set thread context of 756	1508	jiwymjkc.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4564	sc.exe
1136	sc.exe
4680	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
2552	4480	WerFault.exe	81
4064	1508	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	2025-01-25_24bd85cfd4f367380324d69d46805978_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	svchost.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	jiwymjkc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4480 wrote to memory of 4676	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	82
PID 4480 wrote to memory of 4676	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	82
PID 4480 wrote to memory of 4676	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	82
PID 4480 wrote to memory of 4704	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	84
PID 4480 wrote to memory of 4704	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	84
PID 4480 wrote to memory of 4704	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	84
PID 4480 wrote to memory of 4564	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	86
PID 4480 wrote to memory of 4564	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	86
PID 4480 wrote to memory of 4564	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	86
PID 4480 wrote to memory of 1136	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	88
PID 4480 wrote to memory of 1136	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	88
PID 4480 wrote to memory of 1136	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	88
PID 4480 wrote to memory of 4680	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	90
PID 4480 wrote to memory of 4680	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	90
PID 4480 wrote to memory of 4680	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	90
PID 4480 wrote to memory of 3008	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 4480 wrote to memory of 3008	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 4480 wrote to memory of 3008	4480	2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe	93
PID 1508 wrote to memory of 756	1508	jiwymjkc.exe	98
PID 1508 wrote to memory of 756	1508	jiwymjkc.exe	98
PID 1508 wrote to memory of 756	1508	jiwymjkc.exe	98
PID 1508 wrote to memory of 756	1508	jiwymjkc.exe	98
PID 1508 wrote to memory of 756	1508	jiwymjkc.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zupfhyju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jiwymjkc.exe" C:\Windows\SysWOW64\zupfhyju\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zupfhyju binPath= "C:\Windows\SysWOW64\zupfhyju\jiwymjkc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zupfhyju "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zupfhyju
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4680
- 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:3008
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 1220
  2⤵
  - Program crash
  PID:2552

C:\Windows\SysWOW64\zupfhyju\jiwymjkc.exe
C:\Windows\SysWOW64\zupfhyju\jiwymjkc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_24bd85cfd4f367380324d69d46805978_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1508 -s 556
  2⤵
  - Program crash
  PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4480 -ip 4480
1⤵
PID:4940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1508 -ip 1508
1⤵
PID:2388

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\jiwymjkc.exe

Filesize
13.6MB

MD5
cd3e9b867563fc187f8a3fbb1b0c62c8

SHA1
0f8a771dd11eb4e55a009f8f83afe15635b36639

SHA256
8119351bcb0fed28ae2691ac2d850ef94fd34de9ff0149d39111594be9787443

SHA512
3006b40b427f13cb2ebb1263f700e7ffaeb68cc689bdd676e72f6e34bf0a1556154c4302f014547276ba1c25159fd067192b5b993480bfd3c3c63b370a8371ba

Download Submit
memory/756-14-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/756-17-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/756-16-0x0000000000A90000-0x0000000000AA5000-memory.dmp

Filesize
84KB

Download
memory/1508-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1508-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1508-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1508-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4480-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4480-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/4480-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4480-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4480-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4480-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads