tofsee | 0122c61b7744339ff20a0da34326fe959bbedb86067ff115497dea005ab05e77

General

Target

2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe
Size

12.9MB
MD5

94b08ae45d710b4d9c2971a2c313d6d0
SHA1

64ee86c9a7b1d8c8571f16742886ab61d3869a1c
SHA256

0122c61b7744339ff20a0da34326fe959bbedb86067ff115497dea005ab05e77
SHA512

46c2df829a2eed6e8e9740aded9f88cb90689a4f92626d7f6448531c6c69a1f5caa7caf7d3f33d13d58af027fe46affc9f6e2d2d190f6b362d73e191a3508706
SSDEEP

49152:XqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPO:XqtYc3/

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
4536	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\cqmaubsq\ImagePath = "C:\\Windows\\SysWOW64\\cqmaubsq\\ypxvfahv.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-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe

Deletes itself 1 IoCs

pid	Process
2424	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3264	ypxvfahv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3264 set thread context of 2424	3264	ypxvfahv.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3304	sc.exe
844	sc.exe
4508	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
3696	3264	WerFault.exe	96
4136	2004	WerFault.exe	82

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	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ypxvfahv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 1172	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	86
PID 2004 wrote to memory of 1172	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	86
PID 2004 wrote to memory of 1172	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	86
PID 2004 wrote to memory of 548	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	88
PID 2004 wrote to memory of 548	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	88
PID 2004 wrote to memory of 548	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	88
PID 2004 wrote to memory of 844	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	90
PID 2004 wrote to memory of 844	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	90
PID 2004 wrote to memory of 844	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	90
PID 2004 wrote to memory of 4508	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	92
PID 2004 wrote to memory of 4508	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	92
PID 2004 wrote to memory of 4508	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	92
PID 2004 wrote to memory of 3304	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	94
PID 2004 wrote to memory of 3304	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	94
PID 2004 wrote to memory of 3304	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	94
PID 3264 wrote to memory of 2424	3264	ypxvfahv.exe	97
PID 3264 wrote to memory of 2424	3264	ypxvfahv.exe	97
PID 3264 wrote to memory of 2424	3264	ypxvfahv.exe	97
PID 3264 wrote to memory of 2424	3264	ypxvfahv.exe	97
PID 3264 wrote to memory of 2424	3264	ypxvfahv.exe	97
PID 2004 wrote to memory of 4536	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	101
PID 2004 wrote to memory of 4536	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	101
PID 2004 wrote to memory of 4536	2004	2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cqmaubsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ypxvfahv.exe" C:\Windows\SysWOW64\cqmaubsq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cqmaubsq binPath= "C:\Windows\SysWOW64\cqmaubsq\ypxvfahv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cqmaubsq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cqmaubsq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3304
- 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:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 572
  2⤵
  - Program crash
  PID:4136

C:\Windows\SysWOW64\cqmaubsq\ypxvfahv.exe
C:\Windows\SysWOW64\cqmaubsq\ypxvfahv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_94b08ae45d710b4d9c2971a2c313d6d0_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3264
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 528
  2⤵
  - Program crash
  PID:3696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3264 -ip 3264
1⤵
PID:2244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2004 -ip 2004
1⤵
PID:3964

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\ypxvfahv.exe

Filesize
11.5MB

MD5
f1750aa78c4789f32d2625a84d2e03ac

SHA1
8d32679daae808536efc0481da19ccde3fc7e99e

SHA256
ac89c8baa443fe6395757f6c0f21fbfdb8b9e2d7855ec4195be8630e93c2a094

SHA512
1347fd032c87c34ec2329a4436d13802845e24c93ea19143eb634ad3c3f38130ba352164600e2e89fa39d6fa38c89c3ebb887315e812da1102775c5648992c5a

Download Submit
memory/2004-1-0x0000000003010000-0x0000000003110000-memory.dmp

Filesize
1024KB

Download
memory/2004-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2004-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2004-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2424-8-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2424-14-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2424-15-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/3264-10-0x0000000000400000-0x0000000002DC3000-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