tofsee | e93b25fc2f3e98f23a875044f9aef1c511c32ce591d126f4729c7434f10eab46

General

Target

2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe
Size

12.3MB
MD5

363971fcae368f8ce07971a103a074a6
SHA1

b49dd18b2739ce13bcb1c5448b5a4f94ae7937e4
SHA256

e93b25fc2f3e98f23a875044f9aef1c511c32ce591d126f4729c7434f10eab46
SHA512

b218906d9faf45946714baa0dc87dc160bd26c7b169905a8b56347828e849f2e91731632c1e792425857297fe4d65dd13f9bc88a4f47ad577fb4cf102884c785
SSDEEP

6144:1+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:1+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee 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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\dnusuhkb = "0"	svchost.exe

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

2440 netsh.exe

pid	process
2440	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\dnusuhkb\ImagePath = "C:\\Windows\\SysWOW64\\dnusuhkb\\kmhypjqj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2448 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kmhypjqj.exe

pid process

2764 kmhypjqj.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kmhypjqj.exe

description pid process target process

PID 2764 set thread context of 2448 2764 kmhypjqj.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

2628 sc.exe
2840 sc.exe
2536 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2448	svchost.exe

pid	process
2764	kmhypjqj.exe

description	pid	process	target process
PID 2764 set thread context of 2448	2764	kmhypjqj.exe	svchost.exe

pid	process
2628	sc.exe
2840	sc.exe
2536	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 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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exekmhypjqj.exe

description	pid	process	target process
PID 996 wrote to memory of 1564	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 1564	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 1564	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 1564	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 2540	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 2540	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 2540	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 2540	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 996 wrote to memory of 2536	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2536	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2536	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2536	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2628	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2628	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2628	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2628	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2840	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2840	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2840	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2840	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 996 wrote to memory of 2440	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 996 wrote to memory of 2440	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 996 wrote to memory of 2440	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 996 wrote to memory of 2440	996	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe
PID 2764 wrote to memory of 2448	2764	kmhypjqj.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dnusuhkb\
2⤵
PID:1564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmhypjqj.exe" C:\Windows\SysWOW64\dnusuhkb\
2⤵
PID:2540

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create dnusuhkb binPath= "C:\Windows\SysWOW64\dnusuhkb\kmhypjqj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2536

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description dnusuhkb "wifi internet conection"
2⤵
- Launches sc.exe
PID:2628

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start dnusuhkb
2⤵
- Launches sc.exe
PID:2840

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
PID:2440

C:\Windows\SysWOW64\dnusuhkb\kmhypjqj.exe
C:\Windows\SysWOW64\dnusuhkb\kmhypjqj.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2764

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2448

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kmhypjqj.exe
Filesize
13.3MB

MD5
d55145d53b7e79e2a94aa6a3d1db936b

SHA1
f140a6a42316f37099938fb58a4242fb5f86e370

SHA256
48cad21332c15ca0f9fed3c17f2fb2c1a38a6bf461fe2a56efae17725d3ee409

SHA512
607dcdc29385157df15f164f3a29c739742a9cd944eda92f52d0d1c63c18465d7daebc34620387d4679e1fcc5fda075f6b34f803ce19b6613739b2c43d65a54a

Download Submit
memory/996-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/996-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/996-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/996-7-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2448-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2448-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2448-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2448-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2448-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-15-0x0000000000400000-0x000000000051A000-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