tofsee | c9e677a87b6a4d3ab39c03c0a98d08ba570a404d193df65861d88a9498e01d4c

General

Target

2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe
Size

10.4MB
MD5

e33c48ea024407d4d7db2d6d0255b5b9
SHA1

231bed3cab85e304f71a33c4c242871117bc9c0e
SHA256

c9e677a87b6a4d3ab39c03c0a98d08ba570a404d193df65861d88a9498e01d4c
SHA512

2150bbd1811bd040d921ecc1120a51bd5a8aef0cc63df734e8de63c1b15fae6b850cc302c9bb1488f5bad30927c975521b22733b658f88616d899690a6f5cefe
SSDEEP

49152:CVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGm:CVdrl/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
4752	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\pnzouauj\ImagePath = "C:\\Windows\\SysWOW64\\pnzouauj\\bgttwvlq.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe

Deletes itself 1 IoCs

pid	Process
768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	bgttwvlq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 768	5048	bgttwvlq.exe	106

Launches sc.exe 3 IoCs

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

pid	Process
1748	sc.exe
2524	sc.exe
3564	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1872	2936	WerFault.exe	82
4724	5048	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	netsh.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	bgttwvlq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 1500	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	86
PID 2936 wrote to memory of 1500	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	86
PID 2936 wrote to memory of 1500	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	86
PID 2936 wrote to memory of 2584	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	88
PID 2936 wrote to memory of 2584	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	88
PID 2936 wrote to memory of 2584	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	88
PID 2936 wrote to memory of 1748	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	90
PID 2936 wrote to memory of 1748	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	90
PID 2936 wrote to memory of 1748	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	90
PID 2936 wrote to memory of 2524	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	92
PID 2936 wrote to memory of 2524	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	92
PID 2936 wrote to memory of 2524	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	92
PID 2936 wrote to memory of 3564	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	94
PID 2936 wrote to memory of 3564	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	94
PID 2936 wrote to memory of 3564	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	94
PID 2936 wrote to memory of 4752	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	99
PID 2936 wrote to memory of 4752	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	99
PID 2936 wrote to memory of 4752	2936	2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe	99
PID 5048 wrote to memory of 768	5048	bgttwvlq.exe	106
PID 5048 wrote to memory of 768	5048	bgttwvlq.exe	106
PID 5048 wrote to memory of 768	5048	bgttwvlq.exe	106
PID 5048 wrote to memory of 768	5048	bgttwvlq.exe	106
PID 5048 wrote to memory of 768	5048	bgttwvlq.exe	106

C:\Users\Admin\AppData\Local\Temp\2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pnzouauj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgttwvlq.exe" C:\Windows\SysWOW64\pnzouauj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pnzouauj binPath= "C:\Windows\SysWOW64\pnzouauj\bgttwvlq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pnzouauj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pnzouauj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3564
- 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:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2936 -s 1260
  2⤵
  - Program crash
  PID:1872

C:\Windows\SysWOW64\pnzouauj\bgttwvlq.exe
C:\Windows\SysWOW64\pnzouauj\bgttwvlq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_e33c48ea024407d4d7db2d6d0255b5b9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 508
  2⤵
  - Program crash
  PID:4724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2936 -ip 2936
1⤵
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5048 -ip 5048
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\bgttwvlq.exe

Filesize
11.1MB

MD5
564ba90d5b9b8571eea232150ffe499e

SHA1
197fbacef4c94b425675ea39112a48c12a70534b

SHA256
ca7d0deb11495a07d2870bcb29d46862e21bc2dd4d4966eee227863190b57cef

SHA512
c69c9181d5a9d5688cc104829b4e9efe5296bf93bf3940204dfd1495dd594714e6af8fe122b6be5b1463b0cae6942cd32048f227cd1083dbcd6f4aefc2bbfcd0

Download Submit
memory/768-14-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/768-17-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/768-16-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/2936-8-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/2936-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2936-2-0x00000000006B0000-0x00000000006C3000-memory.dmp

Filesize
76KB

Download
memory/2936-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2936-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2936-1-0x00000000007F0000-0x00000000008F0000-memory.dmp

Filesize
1024KB

Download
memory/5048-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/5048-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/5048-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/5048-19-0x0000000000400000-0x0000000000518000-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