tofsee | aa42ecb7a9230f5ac230615ed00a1dc2c048baa879b50e756423f5cb1cd130ec

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 05:24

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General

Target

2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe
Size

12.9MB
MD5

eff212229ba9af2ac3d0f94a52a682aa
SHA1

288f0001a18e9cba39a1324cdb245d8809a1b764
SHA256

aa42ecb7a9230f5ac230615ed00a1dc2c048baa879b50e756423f5cb1cd130ec
SHA512

0746c83a2d6855d6880fa69772b66e38906839fcfbff5b97a89b44070b32e8cbe7c3bb6c37e1ae1c02cea487836d0cfd1cb3f8aa677f383cf1a667d3af1a20a5
SSDEEP

49152:XqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPh:XqtYc3U

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\rzirxboi = "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
2940	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\rzirxboi\ImagePath = "C:\\Windows\\SysWOW64\\rzirxboi\\ayhirncy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3028	ayhirncy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 2620	3028	ayhirncy.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2704	sc.exe
2760	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	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	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ayhirncy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2208	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	30
PID 2192 wrote to memory of 2208	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	30
PID 2192 wrote to memory of 2208	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	30
PID 2192 wrote to memory of 2208	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	30
PID 2192 wrote to memory of 1716	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	32
PID 2192 wrote to memory of 1716	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	32
PID 2192 wrote to memory of 1716	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	32
PID 2192 wrote to memory of 1716	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	32
PID 2192 wrote to memory of 2704	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	34
PID 2192 wrote to memory of 2704	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	34
PID 2192 wrote to memory of 2704	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	34
PID 2192 wrote to memory of 2704	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	34
PID 2192 wrote to memory of 2760	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	36
PID 2192 wrote to memory of 2760	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	36
PID 2192 wrote to memory of 2760	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	36
PID 2192 wrote to memory of 2760	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	36
PID 2192 wrote to memory of 2816	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	38
PID 2192 wrote to memory of 2816	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	38
PID 2192 wrote to memory of 2816	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	38
PID 2192 wrote to memory of 2816	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	38
PID 2192 wrote to memory of 2940	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	41
PID 2192 wrote to memory of 2940	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	41
PID 2192 wrote to memory of 2940	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	41
PID 2192 wrote to memory of 2940	2192	2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe	41
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42
PID 3028 wrote to memory of 2620	3028	ayhirncy.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rzirxboi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ayhirncy.exe" C:\Windows\SysWOW64\rzirxboi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rzirxboi binPath= "C:\Windows\SysWOW64\rzirxboi\ayhirncy.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rzirxboi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rzirxboi
  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:2940

C:\Windows\SysWOW64\rzirxboi\ayhirncy.exe
C:\Windows\SysWOW64\rzirxboi\ayhirncy.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_eff212229ba9af2ac3d0f94a52a682aa_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2620

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\ayhirncy.exe

Filesize
11.4MB

MD5
f1eef15a8c986a3a43cd30ef3619213d

SHA1
cb768efab2b228cef24172f64fb7aca5839f3644

SHA256
312bd7ed5f0dee887fdc02034a49cd2846f8c04941fe704b654e1a6fa466bed7

SHA512
20de757f735a1d7260eb07b4c07f9183392fd3d2ef28f4e85d574651bc18aaf0ff77089a041f23936b12091a336305aa5898d0bc0f6ae8c40dace4afdfa25cd9

Download Submit
memory/2192-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2192-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2192-4-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2192-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2192-15-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2620-12-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-9-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-17-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2620-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/3028-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads