tofsee | cbbb1a2b296e453e20156852f098abbf68eab45d34f70e7c9145b9aa6670dc03

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 19:08

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General

Target

2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe
Size

11.7MB
MD5

c1bbb3b802fdd40c32cb724994c93060
SHA1

c5f821e8af30e2ce7b3686418f2702e15b162fcd
SHA256

cbbb1a2b296e453e20156852f098abbf68eab45d34f70e7c9145b9aa6670dc03
SHA512

adc8cc1a8cfc733b163def58ac32a3833210c2828f47bbce0eea7f62103f4f71b38432bd530afa4937d56cc96b205cd811f749abdd381eaf03af153507ed4755
SSDEEP

24576:zEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZT:gfot

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\cfzmaphx = "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
2844	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\cfzmaphx\ImagePath = "C:\\Windows\\SysWOW64\\cfzmaphx\\kxjgzmrb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3012	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	kxjgzmrb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 3012	2768	kxjgzmrb.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2196	sc.exe
2820	sc.exe
2216	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	kxjgzmrb.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	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	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2448	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	30
PID 2016 wrote to memory of 2448	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	30
PID 2016 wrote to memory of 2448	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	30
PID 2016 wrote to memory of 2448	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	30
PID 2016 wrote to memory of 1884	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	32
PID 2016 wrote to memory of 1884	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	32
PID 2016 wrote to memory of 1884	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	32
PID 2016 wrote to memory of 1884	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	32
PID 2016 wrote to memory of 2196	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	34
PID 2016 wrote to memory of 2196	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	34
PID 2016 wrote to memory of 2196	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	34
PID 2016 wrote to memory of 2196	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	34
PID 2016 wrote to memory of 2820	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	36
PID 2016 wrote to memory of 2820	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	36
PID 2016 wrote to memory of 2820	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	36
PID 2016 wrote to memory of 2820	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	36
PID 2016 wrote to memory of 2216	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	38
PID 2016 wrote to memory of 2216	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	38
PID 2016 wrote to memory of 2216	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	38
PID 2016 wrote to memory of 2216	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	38
PID 2016 wrote to memory of 2844	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	41
PID 2016 wrote to memory of 2844	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	41
PID 2016 wrote to memory of 2844	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	41
PID 2016 wrote to memory of 2844	2016	2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe	41
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43
PID 2768 wrote to memory of 3012	2768	kxjgzmrb.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cfzmaphx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kxjgzmrb.exe" C:\Windows\SysWOW64\cfzmaphx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cfzmaphx binPath= "C:\Windows\SysWOW64\cfzmaphx\kxjgzmrb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cfzmaphx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cfzmaphx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2216
- 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:2844

C:\Windows\SysWOW64\cfzmaphx\kxjgzmrb.exe
C:\Windows\SysWOW64\cfzmaphx\kxjgzmrb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_c1bbb3b802fdd40c32cb724994c93060_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- 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:3012

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\kxjgzmrb.exe

Filesize
12.5MB

MD5
dab1ee9bf18d25cf6fe03b0f9eb1b763

SHA1
2653ac1859b8bafe1e4f2afc3b4b20f498f8672b

SHA256
3df50ac8cba7bac12f9e752f09e515c6aa101b9553fd187c8b51b3befb7309b7

SHA512
00e5bab90d919acdb4ac372a8cb2ed31ed5c3b9896fdf204e7973f74b5645fca3f75766d92c33edca4629bdd8a8fa3629af0ce7cfee5afcd3af5c7f1e14c837f

Download Submit
memory/2016-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2016-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2016-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2768-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3012-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3012-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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