tofsee | 45d151f9dfbe922d2783ae25abba72cccd65b388388ff870168b4bc2f2dadb20

General

Target

2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe
Size

13.3MB
MD5

4e841177032768bf943fe6146883b0a6
SHA1

ee2624d773be4d52f0203218ee96ab716d72930c
SHA256

45d151f9dfbe922d2783ae25abba72cccd65b388388ff870168b4bc2f2dadb20
SHA512

3c995f2b739d321af4e938c672f4bf4f1b563582bd2b7601a712c61ee93ea547de1d2067be17dac039fbb5da25abff053fff7fd25b1430ddaf22a15b8cba4c5d
SSDEEP

3072:RLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/K:UOMdRQr7OB0ypmMXnl8XEPM3noSWOCR

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
5092	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\awcnmdyn\ImagePath = "C:\\Windows\\SysWOW64\\awcnmdyn\\gsrfqaic.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe

Deletes itself 1 IoCs

pid	Process
1832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1892	gsrfqaic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1892 set thread context of 1832	1892	gsrfqaic.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2124	sc.exe
3620	sc.exe
4644	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1288	4704	WerFault.exe	84
1040	1892	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	2025-01-31_4e841177032768bf943fe6146883b0a6_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	gsrfqaic.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2100	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	86
PID 4704 wrote to memory of 2100	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	86
PID 4704 wrote to memory of 2100	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	86
PID 4704 wrote to memory of 2660	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	88
PID 4704 wrote to memory of 2660	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	88
PID 4704 wrote to memory of 2660	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	88
PID 4704 wrote to memory of 4644	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	90
PID 4704 wrote to memory of 4644	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	90
PID 4704 wrote to memory of 4644	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	90
PID 4704 wrote to memory of 2124	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	92
PID 4704 wrote to memory of 2124	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	92
PID 4704 wrote to memory of 2124	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	92
PID 4704 wrote to memory of 3620	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	94
PID 4704 wrote to memory of 3620	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	94
PID 4704 wrote to memory of 3620	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	94
PID 4704 wrote to memory of 5092	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	97
PID 4704 wrote to memory of 5092	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	97
PID 4704 wrote to memory of 5092	4704	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	97
PID 1892 wrote to memory of 1832	1892	gsrfqaic.exe	103
PID 1892 wrote to memory of 1832	1892	gsrfqaic.exe	103
PID 1892 wrote to memory of 1832	1892	gsrfqaic.exe	103
PID 1892 wrote to memory of 1832	1892	gsrfqaic.exe	103
PID 1892 wrote to memory of 1832	1892	gsrfqaic.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\awcnmdyn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gsrfqaic.exe" C:\Windows\SysWOW64\awcnmdyn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create awcnmdyn binPath= "C:\Windows\SysWOW64\awcnmdyn\gsrfqaic.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description awcnmdyn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2124
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start awcnmdyn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3620
- 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:5092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 572
  2⤵
  - Program crash
  PID:1288

C:\Windows\SysWOW64\awcnmdyn\gsrfqaic.exe
C:\Windows\SysWOW64\awcnmdyn\gsrfqaic.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 512
  2⤵
  - Program crash
  PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4704 -ip 4704
1⤵
PID:2060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1892 -ip 1892
1⤵
PID:3972

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\gsrfqaic.exe

Filesize
13.9MB

MD5
5fc7fe4d6d15b2b0e5f0e58ac79001c7

SHA1
34dac43f38c445f62ac084ae8fe86f4ed1513e74

SHA256
88cdf064d9f78add6df4e56a786571ddd7097afd34c2207068b82acf35983c93

SHA512
557330055da47581722d3bb2f04960e699491a167a9af943724043027ba624f2daec71d1aaa0b0fc0d376bcc9177b3552dbb2418bddf94510de0ab6dffd98762

Download Submit
memory/1832-14-0x0000000000250000-0x0000000000265000-memory.dmp

Filesize
84KB

Download
memory/1832-17-0x0000000000250000-0x0000000000265000-memory.dmp

Filesize
84KB

Download
memory/1832-16-0x0000000000250000-0x0000000000265000-memory.dmp

Filesize
84KB

Download
memory/1892-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1892-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1892-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1892-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4704-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4704-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/4704-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4704-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads