tofsee | 1bbf4d3f017661eb57be195c6c53319731eb6c36aee2ddecf39b53ec91bcfdb2

General

Target

2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe
Size

13.8MB
MD5

9c51a91c066c0450f73e9094bff5b3d4
SHA1

69443b3cd6392afd4d9abd4191cc83979fbf1cf5
SHA256

1bbf4d3f017661eb57be195c6c53319731eb6c36aee2ddecf39b53ec91bcfdb2
SHA512

2eaabc50c4f270dbd8e9bb93221456fb1270ceda504b127765679eda4403c4c6efae4a18ed79fc1780acc885fd29b5e676479858a3a962a680941f0324fcca84
SSDEEP

49152:AVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG3:AVdrl/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

pid	Process
3432	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\sumduhso\ImagePath = "C:\\Windows\\SysWOW64\\sumduhso\\bbagrfmp.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe

Deletes itself 1 IoCs

pid	Process
2512	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4184	bbagrfmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4184 set thread context of 2512	4184	bbagrfmp.exe	110

Launches sc.exe 3 IoCs

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

pid	Process
2700	sc.exe
5036	sc.exe
1744	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
920	540	WerFault.exe	83
212	4184	WerFault.exe	101

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	bbagrfmp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_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
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 540 wrote to memory of 4384	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	87
PID 540 wrote to memory of 4384	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	87
PID 540 wrote to memory of 4384	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	87
PID 540 wrote to memory of 3164	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	91
PID 540 wrote to memory of 3164	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	91
PID 540 wrote to memory of 3164	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	91
PID 540 wrote to memory of 2700	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	93
PID 540 wrote to memory of 2700	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	93
PID 540 wrote to memory of 2700	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	93
PID 540 wrote to memory of 5036	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	97
PID 540 wrote to memory of 5036	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	97
PID 540 wrote to memory of 5036	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	97
PID 540 wrote to memory of 1744	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	99
PID 540 wrote to memory of 1744	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	99
PID 540 wrote to memory of 1744	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	99
PID 540 wrote to memory of 3432	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	102
PID 540 wrote to memory of 3432	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	102
PID 540 wrote to memory of 3432	540	2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe	102
PID 4184 wrote to memory of 2512	4184	bbagrfmp.exe	110
PID 4184 wrote to memory of 2512	4184	bbagrfmp.exe	110
PID 4184 wrote to memory of 2512	4184	bbagrfmp.exe	110
PID 4184 wrote to memory of 2512	4184	bbagrfmp.exe	110
PID 4184 wrote to memory of 2512	4184	bbagrfmp.exe	110

C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sumduhso\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bbagrfmp.exe" C:\Windows\SysWOW64\sumduhso\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sumduhso binPath= "C:\Windows\SysWOW64\sumduhso\bbagrfmp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sumduhso "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sumduhso
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1744
- 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:3432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 1044
  2⤵
  - Program crash
  PID:920

C:\Windows\SysWOW64\sumduhso\bbagrfmp.exe
C:\Windows\SysWOW64\sumduhso\bbagrfmp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-04_9c51a91c066c0450f73e9094bff5b3d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4184 -s 528
  2⤵
  - Program crash
  PID:212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 540 -ip 540
1⤵
PID:3660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4184 -ip 4184
1⤵
PID:440

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\bbagrfmp.exe

Filesize
14.2MB

MD5
1e1aa53a01a5c449cb674ff85864ad15

SHA1
3da7f393068c605381d950511224be7c1cc173e7

SHA256
daaccf48c18a1ec82511ffe237a0bc1ebf9abd36c83b0c9235b6a4ad27d741c3

SHA512
b832787d419204db4f4e96170dcd83145752037cf05bac2f2640d08d8513bec73ad2726298ef5679d981601ef0a3ed6eb55c4454cdd76e35e6608690c93c929a

Download Submit
memory/540-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/540-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/540-2-0x0000000002120000-0x0000000002133000-memory.dmp

Filesize
76KB

Download
memory/540-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/540-8-0x0000000002120000-0x0000000002133000-memory.dmp

Filesize
76KB

Download
memory/540-1-0x0000000000760000-0x0000000000860000-memory.dmp

Filesize
1024KB

Download
memory/2512-14-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download
memory/2512-16-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download
memory/2512-17-0x0000000000520000-0x0000000000535000-memory.dmp

Filesize
84KB

Download
memory/4184-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4184-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4184-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4184-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads