tofsee | cdb4d297bc53dcf661f9f58812fd44e494a64760a4dea483f8f89bee9791e2a4

General

Target

2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
Size

14.7MB
MD5

d6c6995eda7d5ae7cc5a7be0bb7eba8d
SHA1

1b27e433065b4364f360759dbacf351072b7bbe7
SHA256

cdb4d297bc53dcf661f9f58812fd44e494a64760a4dea483f8f89bee9791e2a4
SHA512

e8db003a63ab17dc3b4c566027e69899b00f4bd981905b5c9e642df9e79b3fc2c24bd3ed239af27a5f9920a9a9f70e31a4463c9884a03db0ad08380b14472738
SSDEEP

49152:wqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:wqtYc3

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2608	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\shcxdyui\ImagePath = "C:\\Windows\\SysWOW64\\shcxdyui\\dlaerpyy.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe

Deletes itself 1 IoCs

pid	Process
3096	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2036	dlaerpyy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2036 set thread context of 3096	2036	dlaerpyy.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
912	sc.exe
2776	sc.exe
1984	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
4072	4712	WerFault.exe	82
648	2036	WerFault.exe	93

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	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	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dlaerpyy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 788	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	83
PID 4712 wrote to memory of 788	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	83
PID 4712 wrote to memory of 788	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	83
PID 4712 wrote to memory of 220	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	85
PID 4712 wrote to memory of 220	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	85
PID 4712 wrote to memory of 220	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	85
PID 4712 wrote to memory of 912	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	87
PID 4712 wrote to memory of 912	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	87
PID 4712 wrote to memory of 912	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	87
PID 4712 wrote to memory of 2776	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	89
PID 4712 wrote to memory of 2776	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	89
PID 4712 wrote to memory of 2776	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	89
PID 4712 wrote to memory of 1984	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	91
PID 4712 wrote to memory of 1984	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	91
PID 4712 wrote to memory of 1984	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	91
PID 4712 wrote to memory of 2608	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	94
PID 4712 wrote to memory of 2608	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	94
PID 4712 wrote to memory of 2608	4712	2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe	94
PID 2036 wrote to memory of 3096	2036	dlaerpyy.exe	98
PID 2036 wrote to memory of 3096	2036	dlaerpyy.exe	98
PID 2036 wrote to memory of 3096	2036	dlaerpyy.exe	98
PID 2036 wrote to memory of 3096	2036	dlaerpyy.exe	98
PID 2036 wrote to memory of 3096	2036	dlaerpyy.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\shcxdyui\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dlaerpyy.exe" C:\Windows\SysWOW64\shcxdyui\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create shcxdyui binPath= "C:\Windows\SysWOW64\shcxdyui\dlaerpyy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description shcxdyui "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start shcxdyui
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1984
- 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:2608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 1284
  2⤵
  - Program crash
  PID:4072

C:\Windows\SysWOW64\shcxdyui\dlaerpyy.exe
C:\Windows\SysWOW64\shcxdyui\dlaerpyy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_d6c6995eda7d5ae7cc5a7be0bb7eba8d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3096
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 516
  2⤵
  - Program crash
  PID:648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4712 -ip 4712
1⤵
PID:1800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 2036 -ip 2036
1⤵
PID:2068

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\dlaerpyy.exe

Filesize
14.3MB

MD5
dd25f7d89c62f6b011d4781d08655106

SHA1
7480b36fec2081c2eeec3e2b0e5fa21c6d71c3f2

SHA256
038b0c81cc776b4a401ee39b5aa856a9de1b6cb675e3ac1af1d60bab12a89405

SHA512
39f0e36c78a5e0fd5f4f22ca15eb15cebc2706188a773d6b523083e14463f4f793df527dc127fb1805df3225d54b62c735f5ff11a1bce6436ca1fa07dd67fe89

Download Submit
memory/2036-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3096-8-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/3096-14-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/3096-15-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

Filesize
84KB

Download
memory/4712-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

Filesize
1024KB

Download
memory/4712-2-0x00000000031F0000-0x0000000003203000-memory.dmp

Filesize
76KB

Download
memory/4712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4712-12-0x00000000031F0000-0x0000000003203000-memory.dmp

Filesize
76KB

Download
memory/4712-11-0x0000000000400000-0x0000000002DC3000-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