tofsee | 79d3cfabbde62600f74af50d8585ee6d0fbac3739a93d6f8a38a4b9f6e066e5e

General

Target

2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
Size

12.4MB
MD5

6c798b40326240e996f80aae14a6eb22
SHA1

36a67317530c39bfc6e326cb00b7bee94f9d33e7
SHA256

79d3cfabbde62600f74af50d8585ee6d0fbac3739a93d6f8a38a4b9f6e066e5e
SHA512

9534dff70e8a8f7f2aace258f9cbf81bbf684b096eca11b76e1a3e8a4f96c690267ddf87c7ac60145814670669ad459e0e9c5fbcad68ad77af8f0b0b5ed302f2
SSDEEP

49152:+Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGv:+Vdrl/9zG

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

Processes:

netsh.exe

pid process

1932 netsh.exe

pid	process
1932	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\tagghism\ImagePath = "C:\\Windows\\SysWOW64\\tagghism\\tyllondi.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

Processes:

2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3956 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tyllondi.exe

pid process

3900 tyllondi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tyllondi.exe

description pid process target process

PID 3900 set thread context of 3956 3900 tyllondi.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2572 sc.exe
2664 sc.exe
1388 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3956	svchost.exe

pid	process
3900	tyllondi.exe

description	pid	process	target process
PID 3900 set thread context of 3956	3900	tyllondi.exe	svchost.exe

pid	process
2572	sc.exe
2664	sc.exe
1388	sc.exe

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

Processes:

netsh.exe

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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4276 1432 WerFault.exe 2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
1712 3900 WerFault.exe tyllondi.exe

pid	pid_target	process	target process
4276	1432	WerFault.exe	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
1712	3900	WerFault.exe	tyllondi.exe

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

Processes:

sc.exenetsh.exetyllondi.exesvchost.exe2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.execmd.execmd.exesc.exesc.exe

description	ioc	process
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	tyllondi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exetyllondi.exe

description	pid	process	target process
PID 1432 wrote to memory of 4852	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 4852	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 4852	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 2748	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 2748	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 2748	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	cmd.exe
PID 1432 wrote to memory of 2572	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 2572	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 2572	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 2664	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 2664	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 2664	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 1388	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 1388	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 1388	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	sc.exe
PID 1432 wrote to memory of 1932	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	netsh.exe
PID 1432 wrote to memory of 1932	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	netsh.exe
PID 1432 wrote to memory of 1932	1432	2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe	netsh.exe
PID 3900 wrote to memory of 3956	3900	tyllondi.exe	svchost.exe
PID 3900 wrote to memory of 3956	3900	tyllondi.exe	svchost.exe
PID 3900 wrote to memory of 3956	3900	tyllondi.exe	svchost.exe
PID 3900 wrote to memory of 3956	3900	tyllondi.exe	svchost.exe
PID 3900 wrote to memory of 3956	3900	tyllondi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tagghism\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tyllondi.exe" C:\Windows\SysWOW64\tagghism\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tagghism binPath= "C:\Windows\SysWOW64\tagghism\tyllondi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tagghism "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tagghism
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1388
- 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:1932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 1220
  2⤵
  - Program crash
  PID:4276

C:\Windows\SysWOW64\tagghism\tyllondi.exe
C:\Windows\SysWOW64\tagghism\tyllondi.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_6c798b40326240e996f80aae14a6eb22_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3956
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 512
  2⤵
  - Program crash
  PID:1712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1432 -ip 1432
1⤵
PID:4656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3900 -ip 3900
1⤵
PID:4200

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tyllondi.exe

Filesize
11.6MB

MD5
2386963e77a12f73734525b590bb570b

SHA1
e49757a87db1c3f475114a20b7577e96b35b58c0

SHA256
aa4dd96f8b05729d7d7548f13752d9a5c3265382a856b29d76d1547e1dbdda84

SHA512
3cbee47eeb96e23d8afdfde37a061f1d1c57139c2d4e0566bf62c1ef57dbe14bfece40647cd2661c8f46a53a3d5c584ec6aa92d5fc29d69f6f6803a4714b67c4

Download Submit
memory/1432-8-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/1432-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1432-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/1432-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1432-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1432-2-0x0000000002260000-0x0000000002273000-memory.dmp

Filesize
76KB

Download
memory/3900-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3900-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3900-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3900-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3956-14-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/3956-16-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download
memory/3956-17-0x0000000000D40000-0x0000000000D55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads