tofsee | ee6bcc7fff3777e6659e577b642bd719361ed2d9589648432e6721cd405bbc1a

General

Target

2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe
Size

12.2MB
MD5

141bea6130ec5e2c983d8b9c18276e9d
SHA1

ff7b3536e7515cbf29b3f5cddf04114c29e2a76d
SHA256

ee6bcc7fff3777e6659e577b642bd719361ed2d9589648432e6721cd405bbc1a
SHA512

fd75b9ba845ec6549cea8ab27df3f4219940039e7d568447ebeeb280fe0ec70c11210f14542fe83fddd37db80b5d03b4d26e2d8b9bb010113e64ed83646e2ba9
SSDEEP

49152:8qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:8qtYc3

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
2968	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\pqgkneb\ImagePath = "C:\\Windows\\SysWOW64\\pqgkneb\\dycukvxv.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe

Deletes itself 1 IoCs

pid	Process
1760	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2372	dycukvxv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 1760	2372	dycukvxv.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3620	sc.exe
1720	sc.exe
3020	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
4432	2372	WerFault.exe	96
3624	4176	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	dycukvxv.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	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	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 4664	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	86
PID 4176 wrote to memory of 4664	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	86
PID 4176 wrote to memory of 4664	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	86
PID 4176 wrote to memory of 1944	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	88
PID 4176 wrote to memory of 1944	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	88
PID 4176 wrote to memory of 1944	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	88
PID 4176 wrote to memory of 3620	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	90
PID 4176 wrote to memory of 3620	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	90
PID 4176 wrote to memory of 3620	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	90
PID 4176 wrote to memory of 1720	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	92
PID 4176 wrote to memory of 1720	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	92
PID 4176 wrote to memory of 1720	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	92
PID 4176 wrote to memory of 3020	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	94
PID 4176 wrote to memory of 3020	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	94
PID 4176 wrote to memory of 3020	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	94
PID 2372 wrote to memory of 1760	2372	dycukvxv.exe	97
PID 2372 wrote to memory of 1760	2372	dycukvxv.exe	97
PID 2372 wrote to memory of 1760	2372	dycukvxv.exe	97
PID 2372 wrote to memory of 1760	2372	dycukvxv.exe	97
PID 2372 wrote to memory of 1760	2372	dycukvxv.exe	97
PID 4176 wrote to memory of 2968	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	99
PID 4176 wrote to memory of 2968	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	99
PID 4176 wrote to memory of 2968	4176	2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pqgkneb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dycukvxv.exe" C:\Windows\SysWOW64\pqgkneb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pqgkneb binPath= "C:\Windows\SysWOW64\pqgkneb\dycukvxv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pqgkneb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pqgkneb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- 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:2968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4176 -s 1036
  2⤵
  - Program crash
  PID:3624

C:\Windows\SysWOW64\pqgkneb\dycukvxv.exe
C:\Windows\SysWOW64\pqgkneb\dycukvxv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_141bea6130ec5e2c983d8b9c18276e9d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 512
  2⤵
  - Program crash
  PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2372 -ip 2372
1⤵
PID:3548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4176 -ip 4176
1⤵
PID:4700

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\dycukvxv.exe

Filesize
13.5MB

MD5
02c73729047592a348db8fc95b47ac76

SHA1
005b6c07b0dab2aa80cb7bc7159760a822d0b711

SHA256
eb4879004ba0ee82d332672f71c085ad7b461d6519e1c59647fc34f03b1c95e8

SHA512
65aa1132ba80ba5a30a11a4d83f22787285d5c643a637bec0c0b2def7cb4ec78c402fda4380f33a2f5f540c36d10a8af17b463f115447c4f0c5c6012562993d6

Download Submit
memory/1760-8-0x0000000000200000-0x0000000000215000-memory.dmp

Filesize
84KB

Download
memory/1760-14-0x0000000000200000-0x0000000000215000-memory.dmp

Filesize
84KB

Download
memory/1760-15-0x0000000000200000-0x0000000000215000-memory.dmp

Filesize
84KB

Download
memory/2372-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4176-1-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/4176-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/4176-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4176-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4176-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/4176-11-0x0000000000400000-0x0000000002DC3000-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