tofsee | 582fb11b558a6b0c30e0ebd7720ea7ef81fda482eca6dd4349acc091952b15e3

General

Target

2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe
Size

11.9MB
MD5

e94bdbbb0ab2eb91568ccf30149974e4
SHA1

bec6d399843fdd6032ab1654aecb7ae9420f3f36
SHA256

582fb11b558a6b0c30e0ebd7720ea7ef81fda482eca6dd4349acc091952b15e3
SHA512

98b9876571c37fa3b677e75ed64cbabe4c787da9a647d03c0eafd5cc0edcbc580551201e23d6043ae4705c0afdbe42d4ee7425ace6029e1bfa79f03c7aaf48c7
SSDEEP

3072:HLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:eOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2920	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\ptfqsjxh\ImagePath = "C:\\Windows\\SysWOW64\\ptfqsjxh\\tyidxjgi.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe

Deletes itself 1 IoCs

pid	Process
1888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3520	tyidxjgi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3520 set thread context of 1888	3520	tyidxjgi.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4572	sc.exe
5020	sc.exe
4252	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
3628	4028	WerFault.exe	82
4560	3520	WerFault.exe	94

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	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	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_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	tyidxjgi.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 2144	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	84
PID 4028 wrote to memory of 2144	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	84
PID 4028 wrote to memory of 2144	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	84
PID 4028 wrote to memory of 1688	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	86
PID 4028 wrote to memory of 1688	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	86
PID 4028 wrote to memory of 1688	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	86
PID 4028 wrote to memory of 4572	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	88
PID 4028 wrote to memory of 4572	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	88
PID 4028 wrote to memory of 4572	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	88
PID 4028 wrote to memory of 5020	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	90
PID 4028 wrote to memory of 5020	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	90
PID 4028 wrote to memory of 5020	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	90
PID 4028 wrote to memory of 4252	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	92
PID 4028 wrote to memory of 4252	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	92
PID 4028 wrote to memory of 4252	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	92
PID 4028 wrote to memory of 2920	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	95
PID 4028 wrote to memory of 2920	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	95
PID 4028 wrote to memory of 2920	4028	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	95
PID 3520 wrote to memory of 1888	3520	tyidxjgi.exe	108
PID 3520 wrote to memory of 1888	3520	tyidxjgi.exe	108
PID 3520 wrote to memory of 1888	3520	tyidxjgi.exe	108
PID 3520 wrote to memory of 1888	3520	tyidxjgi.exe	108
PID 3520 wrote to memory of 1888	3520	tyidxjgi.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ptfqsjxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2144
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyidxjgi.exe" C:\Windows\SysWOW64\ptfqsjxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ptfqsjxh binPath= "C:\Windows\SysWOW64\ptfqsjxh\tyidxjgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ptfqsjxh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ptfqsjxh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4252
- 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:2920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 1204
  2⤵
  - Program crash
  PID:3628

C:\Windows\SysWOW64\ptfqsjxh\tyidxjgi.exe
C:\Windows\SysWOW64\ptfqsjxh\tyidxjgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 516
  2⤵
  - Program crash
  PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4028 -ip 4028
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3520 -ip 3520
1⤵
PID:2076

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\tyidxjgi.exe

Filesize
10.2MB

MD5
7e7356841fc7e58972dd46667873a69b

SHA1
1a12a45661e09355bc954b0ad1f621e32772e12c

SHA256
b4d822acfd17c535ca0b2e5659215927bbc1cb9ed4a6557e4df64886846c0d3e

SHA512
edcf9f432e8ca223b4a7890731f752bbbe476015a3c0125014b3bc697add5cdd663cca76c909d0430d6d32e6339a5e8d9796b537714cae92cd3409f9b3838c88

Download Submit
memory/1888-14-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/1888-17-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/1888-16-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/3520-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3520-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3520-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3520-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4028-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4028-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4028-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/4028-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4028-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4028-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads