tofsee | 899aa9dd6997669142d99322dc8151ca0bad52758a3a6680affd28447e3ca2e9

General

Target

2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe
Size

14.8MB
MD5

82c2359d34d3963f1254fe66fd531487
SHA1

9881acf4de4b213f1500bc6627858257e4bbd190
SHA256

899aa9dd6997669142d99322dc8151ca0bad52758a3a6680affd28447e3ca2e9
SHA512

f98500b7f3de7e2577454c23e14eff00feb0c434ac1bc544da6e2d67d5d4ffd53d6e0d180685358ecd187ae1a1b7c5e04dedac90f844607fca0314edfc122a26
SSDEEP

6144:v+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:v+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\ehclkszt = "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

2636 netsh.exe

pid	process
2636	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\ehclkszt\ImagePath = "C:\\Windows\\SysWOW64\\ehclkszt\\qsnevpwp.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2584 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qsnevpwp.exe

pid process

2728 qsnevpwp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qsnevpwp.exe

description pid process target process

PID 2728 set thread context of 2584 2728 qsnevpwp.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

1788 sc.exe
2648 sc.exe
2688 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
2728	qsnevpwp.exe

description	pid	process	target process
PID 2728 set thread context of 2584	2728	qsnevpwp.exe	svchost.exe

pid	process
1788	sc.exe
2648	sc.exe
2688	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:

2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exeqsnevpwp.exe

description	pid	process	target process
PID 624 wrote to memory of 1996	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 1996	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 1996	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 1996	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 2000	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 2000	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 2000	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 2000	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 624 wrote to memory of 1788	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 1788	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 1788	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 1788	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2648	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2648	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2648	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2648	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2688	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2688	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2688	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 624 wrote to memory of 2688	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 2728 wrote to memory of 2584	2728	qsnevpwp.exe	svchost.exe
PID 624 wrote to memory of 2636	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 624 wrote to memory of 2636	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 624 wrote to memory of 2636	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 624 wrote to memory of 2636	624	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:624

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ehclkszt\
2⤵
PID:1996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qsnevpwp.exe" C:\Windows\SysWOW64\ehclkszt\
2⤵
PID:2000

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ehclkszt binPath= "C:\Windows\SysWOW64\ehclkszt\qsnevpwp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1788

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ehclkszt "wifi internet conection"
2⤵
- Launches sc.exe
PID:2648

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ehclkszt
2⤵
- Launches sc.exe
PID:2688

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:2636

C:\Windows\SysWOW64\ehclkszt\qsnevpwp.exe
C:\Windows\SysWOW64\ehclkszt\qsnevpwp.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2728

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\qsnevpwp.exe
Filesize
12.2MB

MD5
15d88ef89db81818e1e760833045d336

SHA1
145a488974f7cb76cd0263620cd2d802d15d3988

SHA256
12861007002f2cc47899413234e05d3a2d412c53e016b41dc4f830aaa834c627

SHA512
519aa86fb6ca198975bf2d00830bfc1eef2f13a5fbd9ada5788a23506fd3236efe93c21f0762f725dd5ad9164f7f004438867a8527c766dd83246d119908eaa0

Download Submit
memory/624-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/624-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/624-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/624-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
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/2728-12-0x0000000000400000-0x000000000051A000-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