tofsee | 125855b740b1777ffecc46e376fba8c12e89daa1ac4d4c64c9df5ecc00380b74

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 18:48

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General

Target

2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe
Size

10.8MB
MD5

bc0920bf926ce5afd4b3bddbe164c661
SHA1

02d2615da6e80b0f12c8f5af0059034365a7e7c6
SHA256

125855b740b1777ffecc46e376fba8c12e89daa1ac4d4c64c9df5ecc00380b74
SHA512

56f38c84ff5439fe5301fcbc934f8a0212bb535b1e6d41d5207a2b7ce18713eda482557cfa3bec79f3ee77a2e3153c946234230070e2fae85d3a9ab67b5877b5
SSDEEP

6144:1LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQQ:GTYe+D2jFu+iZoUFhAz

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\atjdcdfs = "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
2820	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\atjdcdfs\ImagePath = "C:\\Windows\\SysWOW64\\atjdcdfs\\ajdiazuq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2980	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2880	ajdiazuq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 2980	2880	ajdiazuq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2968	sc.exe
856	sc.exe
2852	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	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	ajdiazuq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1924	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	30
PID 1692 wrote to memory of 1924	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	30
PID 1692 wrote to memory of 1924	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	30
PID 1692 wrote to memory of 1924	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	30
PID 1692 wrote to memory of 2552	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	32
PID 1692 wrote to memory of 2552	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	32
PID 1692 wrote to memory of 2552	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	32
PID 1692 wrote to memory of 2552	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	32
PID 1692 wrote to memory of 2968	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	34
PID 1692 wrote to memory of 2968	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	34
PID 1692 wrote to memory of 2968	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	34
PID 1692 wrote to memory of 2968	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	34
PID 1692 wrote to memory of 856	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	36
PID 1692 wrote to memory of 856	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	36
PID 1692 wrote to memory of 856	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	36
PID 1692 wrote to memory of 856	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	36
PID 1692 wrote to memory of 2852	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	38
PID 1692 wrote to memory of 2852	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	38
PID 1692 wrote to memory of 2852	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	38
PID 1692 wrote to memory of 2852	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	38
PID 1692 wrote to memory of 2820	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	41
PID 1692 wrote to memory of 2820	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	41
PID 1692 wrote to memory of 2820	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	41
PID 1692 wrote to memory of 2820	1692	2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe	41
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43
PID 2880 wrote to memory of 2980	2880	ajdiazuq.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atjdcdfs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ajdiazuq.exe" C:\Windows\SysWOW64\atjdcdfs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create atjdcdfs binPath= "C:\Windows\SysWOW64\atjdcdfs\ajdiazuq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description atjdcdfs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start atjdcdfs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:2820

C:\Windows\SysWOW64\atjdcdfs\ajdiazuq.exe
C:\Windows\SysWOW64\atjdcdfs\ajdiazuq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-09_bc0920bf926ce5afd4b3bddbe164c661_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- 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:2980

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\ajdiazuq.exe

Filesize
10.2MB

MD5
a22c09b22633e76b414ce27ec929a6e2

SHA1
6888b3a07fc5eb4be00bf730da58ad60df431e62

SHA256
42781bc0e2c15a834d9f23fa2fb1a472cd5680ef304acb9aba4e91c3ffbead1b

SHA512
d3b02cd40debdf9cbf8e502b9b440c108cde170fd4a6268f28eecbdaed18ff251f8e3d739089fa81ffd117df6229bb33c26fcecb615c3bf8111393b4922cc19c

Download Submit
memory/1692-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/1692-3-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1692-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1692-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1692-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2980-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2980-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2980-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads