tofsee | 559392ab0d8b5822bfb22af22fa624a4d13ed5dbe2dfb41479b88175c36e115b

General

Target

2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe
Size

12.6MB
MD5

173d0dae116ce3af630bb816a5016ce6
SHA1

e922787a276ddb7dcd6a9920f37c69e62c326d69
SHA256

559392ab0d8b5822bfb22af22fa624a4d13ed5dbe2dfb41479b88175c36e115b
SHA512

3c7ac21a257f8b44582b5bf8c337a20cd7053331679ccab22fa1182a516213825ef6bdf182e5253f67c8f61b783aa614045109f5eaff4ace42a16a1149a2c67f
SSDEEP

24576:eEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ5:3fotz

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
1404	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\pdrfgkkc\ImagePath = "C:\\Windows\\SysWOW64\\pdrfgkkc\\wudenjyu.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe

Deletes itself 1 IoCs

pid	Process
4520	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4332	wudenjyu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4332 set thread context of 4520	4332	wudenjyu.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
1180	sc.exe
876	sc.exe
2372	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
1956	1876	WerFault.exe	84
4560	4332	WerFault.exe	96

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	2025-01-30_173d0dae116ce3af630bb816a5016ce6_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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wudenjyu.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2464	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	86
PID 1876 wrote to memory of 2464	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	86
PID 1876 wrote to memory of 2464	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	86
PID 1876 wrote to memory of 3904	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	88
PID 1876 wrote to memory of 3904	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	88
PID 1876 wrote to memory of 3904	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	88
PID 1876 wrote to memory of 2372	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	90
PID 1876 wrote to memory of 2372	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	90
PID 1876 wrote to memory of 2372	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	90
PID 1876 wrote to memory of 1180	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	92
PID 1876 wrote to memory of 1180	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	92
PID 1876 wrote to memory of 1180	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	92
PID 1876 wrote to memory of 876	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	94
PID 1876 wrote to memory of 876	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	94
PID 1876 wrote to memory of 876	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	94
PID 1876 wrote to memory of 1404	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	97
PID 1876 wrote to memory of 1404	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	97
PID 1876 wrote to memory of 1404	1876	2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe	97
PID 4332 wrote to memory of 4520	4332	wudenjyu.exe	102
PID 4332 wrote to memory of 4520	4332	wudenjyu.exe	102
PID 4332 wrote to memory of 4520	4332	wudenjyu.exe	102
PID 4332 wrote to memory of 4520	4332	wudenjyu.exe	102
PID 4332 wrote to memory of 4520	4332	wudenjyu.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pdrfgkkc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wudenjyu.exe" C:\Windows\SysWOW64\pdrfgkkc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pdrfgkkc binPath= "C:\Windows\SysWOW64\pdrfgkkc\wudenjyu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pdrfgkkc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pdrfgkkc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:876
- 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:1404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 604
  2⤵
  - Program crash
  PID:1956

C:\Windows\SysWOW64\pdrfgkkc\wudenjyu.exe
C:\Windows\SysWOW64\pdrfgkkc\wudenjyu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_173d0dae116ce3af630bb816a5016ce6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 508
  2⤵
  - Program crash
  PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1876 -ip 1876
1⤵
PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4332 -ip 4332
1⤵
PID:5036

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.8MB

MD5
68e30ca7071d3c4e166c4bed4a745e5c

SHA1
b7d46b8dbc640e0767684e17313442bf758fccfc

SHA256
38cb0189c88080b3ad015c7b373993bf92ffbd6b40a88f0fd44111a55c3e18f0

SHA512
810272228999761709fd38e36d7726addc064db9d4c04485e7e761f52474436155d96f1168f2fc65d1b845d5af795c9b97d6d72460ebccbd76617b5de8c08453

Download Submit
memory/1876-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1876-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/1876-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1876-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/1876-1-0x00000000007F0000-0x00000000008F0000-memory.dmp

Filesize
1024KB

Download
memory/4332-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4332-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4332-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4332-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4520-14-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/4520-16-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download
memory/4520-17-0x00000000012B0000-0x00000000012C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads