tofsee | 1425db43a8b0112cf05aee3ee89fa87faf60e2219e5e192b64cca4a0e66f347a

General

Target

2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe
Size

14.8MB
MD5

db9790710e078b436cbf178a61ee4147
SHA1

c512730d9f9565a00a0c7b4be0fb20b03e3472cb
SHA256

1425db43a8b0112cf05aee3ee89fa87faf60e2219e5e192b64cca4a0e66f347a
SHA512

bfa2be34ee5b07149361c390afa2e00f1aaed038824307cbf27eca3eaa48bc2f7516b948cc571a5d904c84dbf0eabcfd79a3ebdebe5032965b9b5a2aba359a01
SSDEEP

24576:kpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttl:woo

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
2776	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\tlomdpvn\ImagePath = "C:\\Windows\\SysWOW64\\tlomdpvn\\gaarclce.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe

Deletes itself 1 IoCs

pid	Process
3556	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2688	gaarclce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 3556	2688	gaarclce.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
3984	sc.exe
2180	sc.exe
4264	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
520	3016	WerFault.exe	82
2128	2688	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_db9790710e078b436cbf178a61ee4147_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	gaarclce.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1132	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	84
PID 3016 wrote to memory of 1132	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	84
PID 3016 wrote to memory of 1132	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	84
PID 3016 wrote to memory of 208	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	86
PID 3016 wrote to memory of 208	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	86
PID 3016 wrote to memory of 208	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	86
PID 3016 wrote to memory of 3984	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	88
PID 3016 wrote to memory of 3984	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	88
PID 3016 wrote to memory of 3984	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	88
PID 3016 wrote to memory of 2180	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	90
PID 3016 wrote to memory of 2180	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	90
PID 3016 wrote to memory of 2180	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	90
PID 3016 wrote to memory of 4264	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	92
PID 3016 wrote to memory of 4264	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	92
PID 3016 wrote to memory of 4264	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	92
PID 3016 wrote to memory of 2776	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	95
PID 3016 wrote to memory of 2776	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	95
PID 3016 wrote to memory of 2776	3016	2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe	95
PID 2688 wrote to memory of 3556	2688	gaarclce.exe	101
PID 2688 wrote to memory of 3556	2688	gaarclce.exe	101
PID 2688 wrote to memory of 3556	2688	gaarclce.exe	101
PID 2688 wrote to memory of 3556	2688	gaarclce.exe	101
PID 2688 wrote to memory of 3556	2688	gaarclce.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tlomdpvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gaarclce.exe" C:\Windows\SysWOW64\tlomdpvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tlomdpvn binPath= "C:\Windows\SysWOW64\tlomdpvn\gaarclce.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tlomdpvn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tlomdpvn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4264
- 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:2776
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3016 -s 1184
  2⤵
  - Program crash
  PID:520

C:\Windows\SysWOW64\tlomdpvn\gaarclce.exe
C:\Windows\SysWOW64\tlomdpvn\gaarclce.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-17_db9790710e078b436cbf178a61ee4147_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 512
  2⤵
  - Program crash
  PID:2128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3016 -ip 3016
1⤵
PID:2216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2688 -ip 2688
1⤵
PID:3184

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\gaarclce.exe

Filesize
11.9MB

MD5
ececdf6b51502762492427988e505d5c

SHA1
cb20dc821ac49502526c84b04f5bba2e2f46de1e

SHA256
c379c38044bd5194d6b5f12f58c893dd37552d474749c14db1280bf4ad72ebae

SHA512
37f5d7334a1ad543c17412e6272995e0653c345aa9e61e70ffdb50541294ebea888154a8dde5142edc6cdde68a031a38502ca0a2074c96d4d57d6ab25d236e72

Download Submit
memory/2688-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2688-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2688-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2688-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3016-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3016-1-0x00000000007E0000-0x00000000008E0000-memory.dmp

Filesize
1024KB

Download
memory/3016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3016-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3016-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3016-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3556-14-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3556-16-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download
memory/3556-17-0x0000000000CF0000-0x0000000000D05000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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