tofsee | 1e8c33c153302e0f4e735d10ac9d34c9618c997c96dfffb72055a44ae8afd7ee

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 20:03

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General

Target

2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe
Size

11.6MB
MD5

da6e1db2ff3ab5370677ee0c3a3adf97
SHA1

c888758d6323d247b75fec2b76d84c1eaee837f4
SHA256

1e8c33c153302e0f4e735d10ac9d34c9618c997c96dfffb72055a44ae8afd7ee
SHA512

726cf837b2e55792747b42e7ca127d06979574f250cf769bf0eaa693bb00ca028875252c80cffacce930f8159f747ac0551e47a9cdc433a6b6355588cde8a65f
SSDEEP

49152:SqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:SqtYc3

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\fpvpnhac = "0"	svchost.exe

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
2744	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\fpvpnhac\ImagePath = "C:\\Windows\\SysWOW64\\fpvpnhac\\easspedr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3048	easspedr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 2976	3048	easspedr.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
112	sc.exe
2752	sc.exe
2808	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

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	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_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
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	easspedr.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2088	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	30
PID 2692 wrote to memory of 2088	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	30
PID 2692 wrote to memory of 2088	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	30
PID 2692 wrote to memory of 2088	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	30
PID 2692 wrote to memory of 1636	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	32
PID 2692 wrote to memory of 1636	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	32
PID 2692 wrote to memory of 1636	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	32
PID 2692 wrote to memory of 1636	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	32
PID 2692 wrote to memory of 112	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	34
PID 2692 wrote to memory of 112	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	34
PID 2692 wrote to memory of 112	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	34
PID 2692 wrote to memory of 112	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	34
PID 2692 wrote to memory of 2752	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	36
PID 2692 wrote to memory of 2752	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	36
PID 2692 wrote to memory of 2752	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	36
PID 2692 wrote to memory of 2752	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	36
PID 2692 wrote to memory of 2808	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	38
PID 2692 wrote to memory of 2808	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	38
PID 2692 wrote to memory of 2808	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	38
PID 2692 wrote to memory of 2808	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	38
PID 2692 wrote to memory of 2744	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	42
PID 2692 wrote to memory of 2744	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	42
PID 2692 wrote to memory of 2744	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	42
PID 2692 wrote to memory of 2744	2692	2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe	42
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44
PID 3048 wrote to memory of 2976	3048	easspedr.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fpvpnhac\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\easspedr.exe" C:\Windows\SysWOW64\fpvpnhac\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1636
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fpvpnhac binPath= "C:\Windows\SysWOW64\fpvpnhac\easspedr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fpvpnhac "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fpvpnhac
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2744

C:\Windows\SysWOW64\fpvpnhac\easspedr.exe
C:\Windows\SysWOW64\fpvpnhac\easspedr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_da6e1db2ff3ab5370677ee0c3a3adf97_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.1MB

MD5
5de6b05167839521a29035130027aece

SHA1
0ac0d095fed8903fe134691dadd70259d8e26331

SHA256
73bdb7e75194de478960d341ed562585cb3cdab0c63b55713f5ea45a6d9c018f

SHA512
f548852a37ec9ea12128b2b31a1f06cc045594bf22e28ec75969888ff313d2276123992120c6e6f06cddf67978ebeda01a6fc43cb9f416cb0d8232ee90e64f5f

Download Submit
memory/2692-9-0x0000000002E40000-0x0000000002F40000-memory.dmp

Filesize
1024KB

Download
memory/2692-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2692-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2692-1-0x0000000002E40000-0x0000000002F40000-memory.dmp

Filesize
1024KB

Download
memory/2692-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2976-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2976-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2976-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3048-18-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads