tofsee | 6f32d5855575c11807a9b7c4225f896e2fa9fca00e265c29237ab0edda8ed70d

Analysis

max time kernel
145s
max time network
148s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 18:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
Size

10.6MB
MD5

32cbda26c9835c1c63f2fed688fb5bb9
SHA1

1b8b5445b2ff31e5377c0a2297672bf656695777
SHA256

d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4
SHA512

34246c7b622d4ff88c401d25da883962dfba46c878bf9387f3b72942add8ccfe1785b4c5dfbacfcbbc1a3f40e866cc701ce2ff8f2334868ae16b150e61de4e5e
SSDEEP

12288:KQeoegEG/Rl1M7jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjz:KQeGX1M

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\elbuzgar = "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

pid	Process
2556	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\elbuzgar\ImagePath = "C:\\Windows\\SysWOW64\\elbuzgar\\xmzvhgzl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2600	xmzvhgzl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 3000	2600	xmzvhgzl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2672	sc.exe
2732	sc.exe
2816	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

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	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xmzvhgzl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2752	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	30
PID 2080 wrote to memory of 2752	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	30
PID 2080 wrote to memory of 2752	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	30
PID 2080 wrote to memory of 2752	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	30
PID 2080 wrote to memory of 2920	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	32
PID 2080 wrote to memory of 2920	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	32
PID 2080 wrote to memory of 2920	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	32
PID 2080 wrote to memory of 2920	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	32
PID 2080 wrote to memory of 2672	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	34
PID 2080 wrote to memory of 2672	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	34
PID 2080 wrote to memory of 2672	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	34
PID 2080 wrote to memory of 2672	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	34
PID 2080 wrote to memory of 2732	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	36
PID 2080 wrote to memory of 2732	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	36
PID 2080 wrote to memory of 2732	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	36
PID 2080 wrote to memory of 2732	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	36
PID 2080 wrote to memory of 2816	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	38
PID 2080 wrote to memory of 2816	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	38
PID 2080 wrote to memory of 2816	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	38
PID 2080 wrote to memory of 2816	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	38
PID 2080 wrote to memory of 2556	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	41
PID 2080 wrote to memory of 2556	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	41
PID 2080 wrote to memory of 2556	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	41
PID 2080 wrote to memory of 2556	2080	d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe	41
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43
PID 2600 wrote to memory of 3000	2600	xmzvhgzl.exe	43

C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe
"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\elbuzgar\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xmzvhgzl.exe" C:\Windows\SysWOW64\elbuzgar\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create elbuzgar binPath= "C:\Windows\SysWOW64\elbuzgar\xmzvhgzl.exe /d\"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description elbuzgar "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start elbuzgar
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2556

C:\Windows\SysWOW64\elbuzgar\xmzvhgzl.exe
C:\Windows\SysWOW64\elbuzgar\xmzvhgzl.exe /d"C:\Users\Admin\AppData\Local\Temp\d26320c9bf38d0c8da62667729d9c28c8c9a71bb1395bf33dff11b59cda8f6c4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\xmzvhgzl.exe

Filesize
14.3MB

MD5
a5f044d8fc5b80e7e75f57d212d59d92

SHA1
bac33b507f5d3bce1a2f43179b9e4e0401e16ad6

SHA256
3924393b7d3d9673972a2f01c03519d56a6f7e8904d2efec70828ab408ed6f6e

SHA512
340dbcd2ec3add87bf8bfcb2db3fbb449eb2b8fc6e7371617fabdf7cd7f26d8ae8d48bc89a880932e5e53cdd8f61aef05e81c15644c2c363b685e96bc6a67b6e

Download Submit
memory/2080-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2080-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2080-1-0x0000000000960000-0x0000000000A60000-memory.dmp

Filesize
1024KB

Download
memory/2080-8-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/2080-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2080-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2600-15-0x0000000000400000-0x000000000086A000-memory.dmp

Filesize
4.4MB

Download
memory/3000-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads