tofsee | c1048cd43182a46e41b0839b55e03ba85b0945f974d5b9b1a606172f3d3bad5d

General

Target

2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe
Size

13.2MB
MD5

21b4465219a1a154003bb8b84360333d
SHA1

444742300be0feace5aeedec675d3a551cfa4f6a
SHA256

c1048cd43182a46e41b0839b55e03ba85b0945f974d5b9b1a606172f3d3bad5d
SHA512

64615c3b1d61f18059b3b579d4320d427e912eba10a3d05992b5610135078707353bd3200f2c8f99f18e2b3d169c0d6235948456437d46541ecd34c11aba0c8c
SSDEEP

24576:YpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttf:0oo

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
4184	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\hnwqkxib\ImagePath = "C:\\Windows\\SysWOW64\\hnwqkxib\\rtounak.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe

Deletes itself 1 IoCs

pid	Process
2972	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4808	rtounak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4808 set thread context of 2972	4808	rtounak.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2908	sc.exe
4516	sc.exe
2212	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
1452	2564	WerFault.exe	81
1480	4808	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_21b4465219a1a154003bb8b84360333d_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rtounak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 4940	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	84
PID 2564 wrote to memory of 4940	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	84
PID 2564 wrote to memory of 4940	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	84
PID 2564 wrote to memory of 1076	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	88
PID 2564 wrote to memory of 1076	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	88
PID 2564 wrote to memory of 1076	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	88
PID 2564 wrote to memory of 4516	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	90
PID 2564 wrote to memory of 4516	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	90
PID 2564 wrote to memory of 4516	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	90
PID 2564 wrote to memory of 2212	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	92
PID 2564 wrote to memory of 2212	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	92
PID 2564 wrote to memory of 2212	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	92
PID 2564 wrote to memory of 2908	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	94
PID 2564 wrote to memory of 2908	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	94
PID 2564 wrote to memory of 2908	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	94
PID 2564 wrote to memory of 4184	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	97
PID 2564 wrote to memory of 4184	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	97
PID 2564 wrote to memory of 4184	2564	2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe	97
PID 4808 wrote to memory of 2972	4808	rtounak.exe	103
PID 4808 wrote to memory of 2972	4808	rtounak.exe	103
PID 4808 wrote to memory of 2972	4808	rtounak.exe	103
PID 4808 wrote to memory of 2972	4808	rtounak.exe	103
PID 4808 wrote to memory of 2972	4808	rtounak.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hnwqkxib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4940
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rtounak.exe" C:\Windows\SysWOW64\hnwqkxib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hnwqkxib binPath= "C:\Windows\SysWOW64\hnwqkxib\rtounak.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hnwqkxib "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hnwqkxib
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2564 -s 640
  2⤵
  - Program crash
  PID:1452

C:\Windows\SysWOW64\hnwqkxib\rtounak.exe
C:\Windows\SysWOW64\hnwqkxib\rtounak.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_21b4465219a1a154003bb8b84360333d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4808
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4808 -s 508
  2⤵
  - Program crash
  PID:1480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2564 -ip 2564
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4808 -ip 4808
1⤵
PID:3648

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\rtounak.exe

Filesize
12.5MB

MD5
294bbb1ad35bf15ce1d937874c94d7df

SHA1
0e5afbe8608b7811f18a4cabbf7376cde67ff6b9

SHA256
699a0bf1ccf38a8a0c95c4814b02e67b5911e9c4863f9f80f42cfe6bc8843c3c

SHA512
260c3ee931412846a6ec6660d19eebe73a9f02df28451585a5402d74d4ff24e53aa0ee126cebd1c9f67fbb1f29be6eb992964de272e1b9925f57d37bfbb3919e

Download Submit
memory/2564-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2564-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2564-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2564-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/2972-14-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/2972-16-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/2972-17-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/4808-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4808-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4808-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4808-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads