tofsee | 21b70b9d34cc4456dea3c340c60e63e6af910ca6ceaab62694cea3ad558717bf

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:37

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General

Target

2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe
Size

11.6MB
MD5

cb0c931541e9fc73ac2847fa4222fe2b
SHA1

186a9da1a462953f4cd10938c418d6c916b80ffa
SHA256

21b70b9d34cc4456dea3c340c60e63e6af910ca6ceaab62694cea3ad558717bf
SHA512

5a73ea10f5e0f62a8e463643fdc0a96883573b9719590df9b605e3c101fb3b0dba3c803002cff4bb967a54792ad7214a38b36ad80c794c1115c33122896c7917
SSDEEP

3072:tLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:wOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

defense_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\ioihvmyf = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2832	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\ioihvmyf\ImagePath = "C:\\Windows\\SysWOW64\\ioihvmyf\\qynrecll.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2172	qynrecll.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2588	2172	qynrecll.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2476	sc.exe
1128	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 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

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qynrecll.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2464	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	30
PID 3044 wrote to memory of 2464	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	30
PID 3044 wrote to memory of 2464	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	30
PID 3044 wrote to memory of 2464	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	30
PID 3044 wrote to memory of 1428	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	32
PID 3044 wrote to memory of 1428	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	32
PID 3044 wrote to memory of 1428	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	32
PID 3044 wrote to memory of 1428	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	32
PID 3044 wrote to memory of 2476	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	34
PID 3044 wrote to memory of 2476	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	34
PID 3044 wrote to memory of 2476	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	34
PID 3044 wrote to memory of 2476	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	34
PID 3044 wrote to memory of 1128	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	36
PID 3044 wrote to memory of 1128	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	36
PID 3044 wrote to memory of 1128	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	36
PID 3044 wrote to memory of 1128	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	36
PID 3044 wrote to memory of 2816	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	38
PID 3044 wrote to memory of 2816	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	38
PID 3044 wrote to memory of 2816	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	38
PID 3044 wrote to memory of 2816	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	38
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 2172 wrote to memory of 2588	2172	qynrecll.exe	41
PID 3044 wrote to memory of 2832	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	42
PID 3044 wrote to memory of 2832	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	42
PID 3044 wrote to memory of 2832	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	42
PID 3044 wrote to memory of 2832	3044	2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ioihvmyf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qynrecll.exe" C:\Windows\SysWOW64\ioihvmyf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ioihvmyf binPath= "C:\Windows\SysWOW64\ioihvmyf\qynrecll.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ioihvmyf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ioihvmyf
  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:2832

C:\Windows\SysWOW64\ioihvmyf\qynrecll.exe
C:\Windows\SysWOW64\ioihvmyf\qynrecll.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_cb0c931541e9fc73ac2847fa4222fe2b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2172
- 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:2588

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

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Downloads

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

Filesize
10.9MB

MD5
ac1a053ef45ee05f55afeff4e2230c66

SHA1
648b7c7bb070b4da71319040f5b4f377ecece157

SHA256
c7744ad4b7a3680086899528a3e9cc09a4bf83c2178eaf6bd01e4f7fd5fa73c2

SHA512
8031e1bf78792e9e6e842e234e0cb96b56fcbc3ba4f170cc7f7af09b108f09457bb862f455c1510fbd99612680b9481c6f0f8539279962e7554c9ed6a509cd5b

Download Submit
memory/2172-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2588-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3044-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3044-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/3044-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3044-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3044-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3044-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads