tofsee | d535b67d8ffe96f8a496131b8cbe8263c50553bd0ee8f335df2f8cc7944f7bf2

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 09:53

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General

Target

2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe
Size

12.6MB
MD5

a87664dadce031ab306fdb20795320bc
SHA1

386ce0b08bc13e21b82a2f517581208451de7de7
SHA256

d535b67d8ffe96f8a496131b8cbe8263c50553bd0ee8f335df2f8cc7944f7bf2
SHA512

a71dd8214370ffc66d96e0415f26924f3bf71149816831155a104d0a871db5280fe96538669158dd982bee08c75369893daca58d4d87b99e9d2a9b0c3acf92bd
SSDEEP

393216:OXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:o

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\aelbihqx = "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
2968	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\aelbihqx\ImagePath = "C:\\Windows\\SysWOW64\\aelbihqx\\afpkeqnp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	afpkeqnp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2576	2668	afpkeqnp.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2832	sc.exe
2816	sc.exe
2844	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_a87664dadce031ab306fdb20795320bc_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	afpkeqnp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2776	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	30
PID 3040 wrote to memory of 2776	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	30
PID 3040 wrote to memory of 2776	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	30
PID 3040 wrote to memory of 2776	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	30
PID 3040 wrote to memory of 2756	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	32
PID 3040 wrote to memory of 2756	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	32
PID 3040 wrote to memory of 2756	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	32
PID 3040 wrote to memory of 2756	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	32
PID 3040 wrote to memory of 2832	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	34
PID 3040 wrote to memory of 2832	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	34
PID 3040 wrote to memory of 2832	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	34
PID 3040 wrote to memory of 2832	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	34
PID 3040 wrote to memory of 2816	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	36
PID 3040 wrote to memory of 2816	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	36
PID 3040 wrote to memory of 2816	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	36
PID 3040 wrote to memory of 2816	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	36
PID 3040 wrote to memory of 2844	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	38
PID 3040 wrote to memory of 2844	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	38
PID 3040 wrote to memory of 2844	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	38
PID 3040 wrote to memory of 2844	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	38
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 2668 wrote to memory of 2576	2668	afpkeqnp.exe	41
PID 3040 wrote to memory of 2968	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	42
PID 3040 wrote to memory of 2968	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	42
PID 3040 wrote to memory of 2968	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	42
PID 3040 wrote to memory of 2968	3040	2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\aelbihqx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afpkeqnp.exe" C:\Windows\SysWOW64\aelbihqx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create aelbihqx binPath= "C:\Windows\SysWOW64\aelbihqx\afpkeqnp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description aelbihqx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start aelbihqx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2968

C:\Windows\SysWOW64\aelbihqx\afpkeqnp.exe
C:\Windows\SysWOW64\aelbihqx\afpkeqnp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_a87664dadce031ab306fdb20795320bc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- 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:2576

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\afpkeqnp.exe

Filesize
14.9MB

MD5
940d3d596c65246438c652cedd0509d7

SHA1
159cb10416c1fcdf5831b7866db069cb8756c99c

SHA256
20569d808153414c12c5004f71fd91df769a8981c6589f64fce7a72e5af50276

SHA512
1e306738b55baafea35e4d9ede2268c3ceec18ce3a929a81bb0ff483ccb8afe47a7eb43a49c033283be32128dc26e06c7a1b78524515c2e0ae4ab73809878312

Download Submit
memory/2576-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2668-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3040-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3040-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3040-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/3040-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3040-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3040-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads