tofsee | bbf80b4904843d5fede8d886a9fce8a29895d4a690fdc6b02dc92bb7ae4c9312

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 11:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe
Size

10.7MB
MD5

ba51c526a2c007ecadaec92187e263fd
SHA1

a0ef80fc0c3b02666f3344a3ccbbb227d960aaf1
SHA256

bbf80b4904843d5fede8d886a9fce8a29895d4a690fdc6b02dc92bb7ae4c9312
SHA512

0b24d16e3cc00b081ce5575631a4c48e1f65071a670b045e5178537041a106d71068fa1892958b77bb0704c5a3f074c8d96c95dffac8273374348de19853ea19
SSDEEP

49152:YqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP8:YqtYc3z

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\zxyjyohy = "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
2812	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\zxyjyohy\ImagePath = "C:\\Windows\\SysWOW64\\zxyjyohy\\uhtqjwbl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2888	uhtqjwbl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2884	2888	uhtqjwbl.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2560	sc.exe
2488	sc.exe
2856	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	uhtqjwbl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_ba51c526a2c007ecadaec92187e263fd_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	sc.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 1992 wrote to memory of 1688	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	30
PID 1992 wrote to memory of 1688	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	30
PID 1992 wrote to memory of 1688	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	30
PID 1992 wrote to memory of 1688	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	30
PID 1992 wrote to memory of 1728	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	32
PID 1992 wrote to memory of 1728	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	32
PID 1992 wrote to memory of 1728	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	32
PID 1992 wrote to memory of 1728	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	32
PID 1992 wrote to memory of 2560	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	34
PID 1992 wrote to memory of 2560	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	34
PID 1992 wrote to memory of 2560	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	34
PID 1992 wrote to memory of 2560	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	34
PID 1992 wrote to memory of 2488	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	36
PID 1992 wrote to memory of 2488	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	36
PID 1992 wrote to memory of 2488	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	36
PID 1992 wrote to memory of 2488	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	36
PID 1992 wrote to memory of 2856	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	38
PID 1992 wrote to memory of 2856	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	38
PID 1992 wrote to memory of 2856	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	38
PID 1992 wrote to memory of 2856	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	38
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 2888 wrote to memory of 2884	2888	uhtqjwbl.exe	41
PID 1992 wrote to memory of 2812	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	42
PID 1992 wrote to memory of 2812	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	42
PID 1992 wrote to memory of 2812	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	42
PID 1992 wrote to memory of 2812	1992	2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zxyjyohy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uhtqjwbl.exe" C:\Windows\SysWOW64\zxyjyohy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zxyjyohy binPath= "C:\Windows\SysWOW64\zxyjyohy\uhtqjwbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zxyjyohy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zxyjyohy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- 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:2812

C:\Windows\SysWOW64\zxyjyohy\uhtqjwbl.exe
C:\Windows\SysWOW64\zxyjyohy\uhtqjwbl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_ba51c526a2c007ecadaec92187e263fd_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- 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:2884

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\uhtqjwbl.exe

Filesize
14.4MB

MD5
26accc9e68d5cde5108b7d7cfb67dc87

SHA1
2472366f72664871be774e91f87e57e3cfc59fe5

SHA256
9579e31d40cebe999463c092b11cdb96b25bbb3657e06debaa1a77fc3472cf13

SHA512
632997621fb6daa2394be347660d9fa7cdf4f2b1ebade5fd5f8d34be7a0e49ec72cf269354802f2bd74389b67be708b64fe493845abe85af22e6ae0d0b8f98d7

Download Submit
memory/1992-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1992-14-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/1992-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1992-1-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/2884-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x0000000000400000-0x0000000002DC3000-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