tofsee | 318a029855a3cb946c8a3ca63c1c932a0e3885b2bec4a87de261860ddd165db4

Analysis

max time kernel
146s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 18:41

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General

Target

2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe
Size

12.6MB
MD5

f899d269684cca932eec89a41dff0fc4
SHA1

350be1aceab663b364488aca77608767dd863fa1
SHA256

318a029855a3cb946c8a3ca63c1c932a0e3885b2bec4a87de261860ddd165db4
SHA512

12c09ffa6e58ce985fb69f9983b0c656ee4c90376f5c5b96ff8f91840f95b35ed2f18e681083aabe7d0758442f3ecf27bcfb8f8a5d87bfc48aabb9e735eb489d
SSDEEP

3072:uLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:3OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion 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

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\rbaqnypi = "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
2732	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\rbaqnypi\ImagePath = "C:\\Windows\\SysWOW64\\rbaqnypi\\zmyvobgq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3004	zmyvobgq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2852	3004	zmyvobgq.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2384	sc.exe
2476	sc.exe
2828	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.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	zmyvobgq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 3032	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	30
PID 1880 wrote to memory of 3032	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	30
PID 1880 wrote to memory of 3032	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	30
PID 1880 wrote to memory of 3032	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	30
PID 1880 wrote to memory of 2324	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	32
PID 1880 wrote to memory of 2324	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	32
PID 1880 wrote to memory of 2324	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	32
PID 1880 wrote to memory of 2324	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	32
PID 1880 wrote to memory of 2384	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	34
PID 1880 wrote to memory of 2384	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	34
PID 1880 wrote to memory of 2384	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	34
PID 1880 wrote to memory of 2384	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	34
PID 1880 wrote to memory of 2476	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	36
PID 1880 wrote to memory of 2476	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	36
PID 1880 wrote to memory of 2476	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	36
PID 1880 wrote to memory of 2476	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	36
PID 1880 wrote to memory of 2828	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	38
PID 1880 wrote to memory of 2828	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	38
PID 1880 wrote to memory of 2828	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	38
PID 1880 wrote to memory of 2828	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	38
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 3004 wrote to memory of 2852	3004	zmyvobgq.exe	41
PID 1880 wrote to memory of 2732	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	42
PID 1880 wrote to memory of 2732	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	42
PID 1880 wrote to memory of 2732	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	42
PID 1880 wrote to memory of 2732	1880	2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rbaqnypi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zmyvobgq.exe" C:\Windows\SysWOW64\rbaqnypi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rbaqnypi binPath= "C:\Windows\SysWOW64\rbaqnypi\zmyvobgq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rbaqnypi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rbaqnypi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- 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:2732

C:\Windows\SysWOW64\rbaqnypi\zmyvobgq.exe
C:\Windows\SysWOW64\rbaqnypi\zmyvobgq.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-31_f899d269684cca932eec89a41dff0fc4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- 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:2852

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\zmyvobgq.exe

Filesize
13.1MB

MD5
49513a63d293970222f76413e8f32555

SHA1
7d85fc518f585c6423f86ceeffac0cc058373eae

SHA256
41a56743f258effafe8a5e3a79f92bd392ebee1fba1d955ba7c680a6872f79b2

SHA512
9f038fd68a2f93fb08144b5f154ad66750d4bca458d1647126fe4decf279ef932d3a3560b482b2ec0d4ad44cc352438a63b2764dd46ea23fbf5ec771f48c7b80

Download Submit
memory/1880-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1880-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1880-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1880-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1880-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/1880-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2852-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2852-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2852-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2852-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/3004-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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