tofsee | f24de00dd0f21f382fb42034498b688fde16a4c6de14d2f9cb94bbeab1f89bd7

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 21:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe
Size

14.9MB
MD5

99f65f4ddb8945e8854021f9c2a0dbff
SHA1

a0325383e78ca77b58844b4d8d5a4036a8a66b25
SHA256

f24de00dd0f21f382fb42034498b688fde16a4c6de14d2f9cb94bbeab1f89bd7
SHA512

f3ca13ed187c34a29fb04581a2bd1f20087eced1baaba565627a53ce705cfea5948a6229dc88834a099d626a2b588e2d1bdab09486a22032893be0e5037a7359
SSDEEP

49152:zqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:zqtYc3

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\ujmikbah = "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
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\ujmikbah\ImagePath = "C:\\Windows\\SysWOW64\\ujmikbah\\kshlywff.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	kshlywff.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2864 set thread context of 2860	2864	kshlywff.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2572	sc.exe
2452	sc.exe
2524	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	kshlywff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2592	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	30
PID 2128 wrote to memory of 2592	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	30
PID 2128 wrote to memory of 2592	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	30
PID 2128 wrote to memory of 2592	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	30
PID 2128 wrote to memory of 2368	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	32
PID 2128 wrote to memory of 2368	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	32
PID 2128 wrote to memory of 2368	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	32
PID 2128 wrote to memory of 2368	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	32
PID 2128 wrote to memory of 2572	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	34
PID 2128 wrote to memory of 2572	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	34
PID 2128 wrote to memory of 2572	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	34
PID 2128 wrote to memory of 2572	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	34
PID 2128 wrote to memory of 2452	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	36
PID 2128 wrote to memory of 2452	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	36
PID 2128 wrote to memory of 2452	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	36
PID 2128 wrote to memory of 2452	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	36
PID 2128 wrote to memory of 2524	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	38
PID 2128 wrote to memory of 2524	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	38
PID 2128 wrote to memory of 2524	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	38
PID 2128 wrote to memory of 2524	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	38
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2864 wrote to memory of 2860	2864	kshlywff.exe	41
PID 2128 wrote to memory of 2820	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	42
PID 2128 wrote to memory of 2820	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	42
PID 2128 wrote to memory of 2820	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	42
PID 2128 wrote to memory of 2820	2128	2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ujmikbah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kshlywff.exe" C:\Windows\SysWOW64\ujmikbah\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ujmikbah binPath= "C:\Windows\SysWOW64\ujmikbah\kshlywff.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ujmikbah "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ujmikbah
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- 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\ujmikbah\kshlywff.exe
C:\Windows\SysWOW64\ujmikbah\kshlywff.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_99f65f4ddb8945e8854021f9c2a0dbff_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2864
- 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:2860

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
10.6MB

MD5
377a3f5ad9e8c32661508d5d3c2eff6d

SHA1
913cc74ca9372df9d72df72d8ad3495d9ec1ca5b

SHA256
2e36e370a1df547b7de98979e65c86609787483e615a0f9560ebe867f00c5abf

SHA512
5e1eb34a8a4633a4f9aa529d1f57143656124fd5952b1a651ae0ac1620e5792b51b7bb256fdd371ff83cfe83cb663dce1ae2e437751bc6b839044e124516f2c1

Download Submit
memory/2128-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2128-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2128-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2128-1-0x0000000002F00000-0x0000000003000000-memory.dmp

Filesize
1024KB

Download
memory/2128-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2860-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2860-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2864-13-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads