tofsee | 5cdda5a30dfac65c765ddba79a5eb58eea819a818347e6b9a15e138a553e9c1c

General

Target

2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe
Size

11.9MB
MD5

cf1ee4c0d22d48ebd7ba5de6d28e37ff
SHA1

feffa2b1e47bb1770e61c0f1b76b37cb4ee4ad1d
SHA256

5cdda5a30dfac65c765ddba79a5eb58eea819a818347e6b9a15e138a553e9c1c
SHA512

6fd0cf200d338613a6eabfe20d12576572c73d12f99e01a7e1b2d431d3b692b6fbb2149e9a48463ee9235bb2e1dfefae692c1e11f9cdf20e970624841b3892b1
SSDEEP

49152:OqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:OqtYc3

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
4804	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\revigggk\ImagePath = "C:\\Windows\\SysWOW64\\revigggk\\pueztfce.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe

Deletes itself 1 IoCs

pid	Process
668	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2176	pueztfce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 668	2176	pueztfce.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4524	sc.exe
4884	sc.exe
3360	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
2072	744	WerFault.exe	81
2860	2176	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	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_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	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pueztfce.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 4856	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	82
PID 744 wrote to memory of 4856	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	82
PID 744 wrote to memory of 4856	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	82
PID 744 wrote to memory of 2348	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	84
PID 744 wrote to memory of 2348	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	84
PID 744 wrote to memory of 2348	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	84
PID 744 wrote to memory of 4524	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	86
PID 744 wrote to memory of 4524	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	86
PID 744 wrote to memory of 4524	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	86
PID 744 wrote to memory of 4884	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	88
PID 744 wrote to memory of 4884	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	88
PID 744 wrote to memory of 4884	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	88
PID 744 wrote to memory of 3360	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	90
PID 744 wrote to memory of 3360	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	90
PID 744 wrote to memory of 3360	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	90
PID 744 wrote to memory of 4804	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	93
PID 744 wrote to memory of 4804	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	93
PID 744 wrote to memory of 4804	744	2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe	93
PID 2176 wrote to memory of 668	2176	pueztfce.exe	98
PID 2176 wrote to memory of 668	2176	pueztfce.exe	98
PID 2176 wrote to memory of 668	2176	pueztfce.exe	98
PID 2176 wrote to memory of 668	2176	pueztfce.exe	98
PID 2176 wrote to memory of 668	2176	pueztfce.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\revigggk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pueztfce.exe" C:\Windows\SysWOW64\revigggk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create revigggk binPath= "C:\Windows\SysWOW64\revigggk\pueztfce.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description revigggk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start revigggk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3360
- 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:4804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 596
  2⤵
  - Program crash
  PID:2072

C:\Windows\SysWOW64\revigggk\pueztfce.exe
C:\Windows\SysWOW64\revigggk\pueztfce.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_cf1ee4c0d22d48ebd7ba5de6d28e37ff_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 512
  2⤵
  - Program crash
  PID:2860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 744 -ip 744
1⤵
PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2176 -ip 2176
1⤵
PID:4844

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\pueztfce.exe

Filesize
14.5MB

MD5
3f4c4c314a9e1e3500b0113f8815655c

SHA1
f364aebe26f744c276f7944bd52c57eae67a596e

SHA256
9ec3f86d763f85d37b64cec67cabe5a02420d653890b9ece64158b7540ef41fe

SHA512
3e0bad40bd20ddead45e2571760049d2044fe3ebae59ac5efd3d8b5bb073d5f56492320002eda9313ef202fff254a58956ddaf8e4f29bd09997441ea07598dec

Download Submit
memory/668-8-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/668-14-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/668-15-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/744-1-0x0000000002EA0000-0x0000000002FA0000-memory.dmp

Filesize
1024KB

Download
memory/744-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/744-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/744-11-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/744-12-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/744-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2176-13-0x0000000000400000-0x0000000002DC3000-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