tofsee | 24af099d827f80aba5e5ab304cb8df15369e5415218a36952a233b99e5105f7b

General

Target

2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe
Size

10.9MB
MD5

31e4e5b6a469cfc4ce2a02e5021c88ce
SHA1

f3bcf71280ba81d2fe8cd14af422d8ef0adc6819
SHA256

24af099d827f80aba5e5ab304cb8df15369e5415218a36952a233b99e5105f7b
SHA512

5abfbaafab6f85765a23caa3719c35a45308d19a9275283ca4f880e53842bebcadd7c6cd68f1984f558b6112e81028b23261306d6daa60e5da3a18cda799d02c
SSDEEP

6144:n+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:n+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\yymxqtwq = "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

2072 netsh.exe

pid	process
2072	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\yymxqtwq\ImagePath = "C:\\Windows\\SysWOW64\\yymxqtwq\\huilnnly.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2644 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

huilnnly.exe

pid process

2724 huilnnly.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

huilnnly.exe

description pid process target process

PID 2724 set thread context of 2644 2724 huilnnly.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

2484 sc.exe
2068 sc.exe
2704 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2644	svchost.exe

pid	process
2724	huilnnly.exe

description	pid	process	target process
PID 2724 set thread context of 2644	2724	huilnnly.exe	svchost.exe

pid	process
2484	sc.exe
2068	sc.exe
2704	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 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

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exehuilnnly.exe

description	pid	process	target process
PID 2208 wrote to memory of 1708	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 1708	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 1708	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 1708	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 2996	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 2996	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 2996	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 2996	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	cmd.exe
PID 2208 wrote to memory of 2068	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2068	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2068	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2068	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2704	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2704	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2704	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2704	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2484	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2484	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2484	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2484	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	sc.exe
PID 2208 wrote to memory of 2072	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	netsh.exe
PID 2208 wrote to memory of 2072	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	netsh.exe
PID 2208 wrote to memory of 2072	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	netsh.exe
PID 2208 wrote to memory of 2072	2208	2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe	netsh.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe
PID 2724 wrote to memory of 2644	2724	huilnnly.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2208

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yymxqtwq\
2⤵
PID:1708

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\huilnnly.exe" C:\Windows\SysWOW64\yymxqtwq\
2⤵
PID:2996

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create yymxqtwq binPath= "C:\Windows\SysWOW64\yymxqtwq\huilnnly.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2068

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description yymxqtwq "wifi internet conection"
2⤵
- Launches sc.exe
PID:2704

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start yymxqtwq
2⤵
- Launches sc.exe
PID:2484

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:2072

C:\Windows\SysWOW64\yymxqtwq\huilnnly.exe
C:\Windows\SysWOW64\yymxqtwq\huilnnly.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-07-03_31e4e5b6a469cfc4ce2a02e5021c88ce_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2724

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2644

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\huilnnly.exe
Filesize
12.2MB

MD5
70bd0b8b715d5cef129303977d29ccc2

SHA1
a723940486be6a7c13c994897196a007191ec6e9

SHA256
1a3255df104f494fb00c022b49c66a207db31bfde3c40fa3e8c29a9187955f4c

SHA512
14ee7204039da2251e7c1e8335d45d897f7bfbca9ddfdd285baf3d5c945bc5c26a380da2d07bfb6fc1e4c51fafa3b73bfe4da6a4f288bfe1425d489efacd1f99

Download Submit
memory/2208-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2208-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2208-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2208-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2644-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2644-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2644-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2644-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-15-0x0000000000400000-0x000000000051A000-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