tofsee | a5ce7274373a42e600ecc51ee6e6122033928f05a282c62410889f36e31320c5

General

Target

2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe
Size

11.4MB
MD5

4d008590e35f6c10978325d00d7ad99d
SHA1

6cd4a20419f653ecc58493813272cbe3e3915479
SHA256

a5ce7274373a42e600ecc51ee6e6122033928f05a282c62410889f36e31320c5
SHA512

3a1db5b7800d1f628291c0b4b765059d271c85a471241b2886d4551050970ac08a219281da563f8eb3375199fca713da116d825695812e0382561d4d0fccb561
SSDEEP

6144:9+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:9+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\skqmedwh = "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

2548 netsh.exe

pid	process
2548	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\skqmedwh\ImagePath = "C:\\Windows\\SysWOW64\\skqmedwh\\bzgcbkiz.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2584 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

bzgcbkiz.exe

pid process

2704 bzgcbkiz.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

bzgcbkiz.exe

description pid process target process

PID 2704 set thread context of 2584 2704 bzgcbkiz.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

2740 sc.exe
3024 sc.exe
2500 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2584	svchost.exe

pid	process
2704	bzgcbkiz.exe

description	pid	process	target process
PID 2704 set thread context of 2584	2704	bzgcbkiz.exe	svchost.exe

pid	process
2740	sc.exe
3024	sc.exe
2500	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:

2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exebzgcbkiz.exe

description	pid	process	target process
PID 2656 wrote to memory of 2580	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2580	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2580	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2580	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2676	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2676	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2676	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2676	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	cmd.exe
PID 2656 wrote to memory of 2740	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2740	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2740	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2740	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 3024	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 3024	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 3024	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 3024	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2500	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2500	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2500	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2656 wrote to memory of 2500	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	sc.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2704 wrote to memory of 2584	2704	bzgcbkiz.exe	svchost.exe
PID 2656 wrote to memory of 2548	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	netsh.exe
PID 2656 wrote to memory of 2548	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	netsh.exe
PID 2656 wrote to memory of 2548	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	netsh.exe
PID 2656 wrote to memory of 2548	2656	2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2656

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\skqmedwh\
2⤵
PID:2580

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bzgcbkiz.exe" C:\Windows\SysWOW64\skqmedwh\
2⤵
PID:2676

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create skqmedwh binPath= "C:\Windows\SysWOW64\skqmedwh\bzgcbkiz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2740

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description skqmedwh "wifi internet conection"
2⤵
- Launches sc.exe
PID:3024

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start skqmedwh
2⤵
- Launches sc.exe
PID:2500

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:2548

C:\Windows\SysWOW64\skqmedwh\bzgcbkiz.exe
C:\Windows\SysWOW64\skqmedwh\bzgcbkiz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-21_4d008590e35f6c10978325d00d7ad99d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2704

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2584

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\bzgcbkiz.exe
Filesize
14.3MB

MD5
79927f9388a4e69b8342bdaf0dcf9650

SHA1
8c9bcc03907be5c78d30cd6822c0f4e2610a6ecc

SHA256
d5331435ba6b848a67c87400e8d3633452759da265c44a4a1a0a04dadb7e77fe

SHA512
1ff2205055eb8156ee27e21e6392c2000638e2dac87223903db64b16891a2e7f6a2cd0d86f450199634a9a355897c348efe96c5f5bc4662ded3ad29853b0aaa6

Download Submit
memory/2584-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2584-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2656-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2656-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2704-12-0x0000000000400000-0x000000000051A000-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