tofsee | 36d1a647fb610758e44ced8bbfd91697d9ac173dff2f76a832ec5f6e1e2fdb63

General

Target

2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe
Size

11.5MB
MD5

248e8001f6f2b4bc189e33de80408ab3
SHA1

1d08963f302551ea2914e47833775bef20199429
SHA256

36d1a647fb610758e44ced8bbfd91697d9ac173dff2f76a832ec5f6e1e2fdb63
SHA512

128fd557cb7607f6b108c390807951cc66c3e8099d520c1acc7b4059d868ab9e7bcf52157d65af0e3bdf8b50ebbe95c9cc88dfaf4be328db596dc54e19924245
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/L:POMdRQr7OB0ypmMXnl8XEPM3noSWOC+

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
388	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\rdhqiyii\ImagePath = "C:\\Windows\\SysWOW64\\rdhqiyii\\pgomwrym.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	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe

Deletes itself 1 IoCs

pid	Process
4532	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
440	pgomwrym.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 440 set thread context of 4532	440	pgomwrym.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
1960	sc.exe
64	sc.exe
3892	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
3420	2124	WerFault.exe	81
3856	440	WerFault.exe	95

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	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	pgomwrym.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2312	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	82
PID 2124 wrote to memory of 2312	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	82
PID 2124 wrote to memory of 2312	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	82
PID 2124 wrote to memory of 4564	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	84
PID 2124 wrote to memory of 4564	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	84
PID 2124 wrote to memory of 4564	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	84
PID 2124 wrote to memory of 1960	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	86
PID 2124 wrote to memory of 1960	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	86
PID 2124 wrote to memory of 1960	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	86
PID 2124 wrote to memory of 64	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	90
PID 2124 wrote to memory of 64	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	90
PID 2124 wrote to memory of 64	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	90
PID 2124 wrote to memory of 3892	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	92
PID 2124 wrote to memory of 3892	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	92
PID 2124 wrote to memory of 3892	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	92
PID 2124 wrote to memory of 388	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	97
PID 2124 wrote to memory of 388	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	97
PID 2124 wrote to memory of 388	2124	2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe	97
PID 440 wrote to memory of 4532	440	pgomwrym.exe	103
PID 440 wrote to memory of 4532	440	pgomwrym.exe	103
PID 440 wrote to memory of 4532	440	pgomwrym.exe	103
PID 440 wrote to memory of 4532	440	pgomwrym.exe	103
PID 440 wrote to memory of 4532	440	pgomwrym.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rdhqiyii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pgomwrym.exe" C:\Windows\SysWOW64\rdhqiyii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rdhqiyii binPath= "C:\Windows\SysWOW64\rdhqiyii\pgomwrym.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rdhqiyii "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:64
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rdhqiyii
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3892
- 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:388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 1164
  2⤵
  - Program crash
  PID:3420

C:\Windows\SysWOW64\rdhqiyii\pgomwrym.exe
C:\Windows\SysWOW64\rdhqiyii\pgomwrym.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_248e8001f6f2b4bc189e33de80408ab3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:440
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 440 -s 516
  2⤵
  - Program crash
  PID:3856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2124 -ip 2124
1⤵
PID:1044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 440 -ip 440
1⤵
PID:1620

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\pgomwrym.exe

Filesize
12.9MB

MD5
a20268da7b723fd503722bdd93968222

SHA1
2bffcac9e3eceb5da41ae4a9ce788bc41f772383

SHA256
7d201772cd87879c884dbcaa0a1e26839f12dd9d8765ecb6987e1fe848c5e9e3

SHA512
c043c08e9930b77a04b35e4900ffc15842efe96aa23b81cc7a20f1d65add23732d4d5f7724261411b8d84949dbf908bc0cd1d345a8cc437f1db5d63b3097f66f

Download Submit
memory/440-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/440-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/440-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/440-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2124-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2124-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2124-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2124-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2124-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4532-14-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/4532-16-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download
memory/4532-17-0x0000000000750000-0x0000000000765000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads