tofsee | 9242bfe755391afaabf0437648bd1d1219bfe22a3a9cc38aa400b8e586207d8e

General

Target

2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe
Size

12.0MB
MD5

55677129c3ec9b078fca74e0042b7667
SHA1

0f316608d3481f66b6be8defcee658022220bb61
SHA256

9242bfe755391afaabf0437648bd1d1219bfe22a3a9cc38aa400b8e586207d8e
SHA512

ce397f4fdc64387094fba86c9a10c487dbf66a88e15e0aaf19cc98eec28f8e8b3b7b0ec2a5816b39f1524609636457a5ab719dfb9affd2904eb317e0eb8d24fe
SSDEEP

6144:c+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:c+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
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

Processes:

netsh.exe

pid process

2352 netsh.exe

pid	process
2352	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\zteitkv\ImagePath = "C:\\Windows\\SysWOW64\\zteitkv\\dgoomkox.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1372 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

dgoomkox.exe

pid process

1956 dgoomkox.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

dgoomkox.exe

description pid process target process

PID 1956 set thread context of 1372 1956 dgoomkox.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

3776 sc.exe
3684 sc.exe
2336 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1372	svchost.exe

pid	process
1956	dgoomkox.exe

description	pid	process	target process
PID 1956 set thread context of 1372	1956	dgoomkox.exe	svchost.exe

pid	process
3776	sc.exe
3684	sc.exe
2336	sc.exe

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

Processes:

netsh.exe

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

Processes:

2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.execmd.exesc.exenetsh.exedgoomkox.exesvchost.execmd.exesc.exesc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_55677129c3ec9b078fca74e0042b7667_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dgoomkox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exedgoomkox.exe

description	pid	process	target process
PID 2092 wrote to memory of 2424	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 2424	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 2424	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 4092	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 4092	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 4092	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	cmd.exe
PID 2092 wrote to memory of 2336	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 2336	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 2336	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3776	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3776	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3776	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3684	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3684	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 3684	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	sc.exe
PID 2092 wrote to memory of 2352	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	netsh.exe
PID 2092 wrote to memory of 2352	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	netsh.exe
PID 2092 wrote to memory of 2352	2092	2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe	netsh.exe
PID 1956 wrote to memory of 1372	1956	dgoomkox.exe	svchost.exe
PID 1956 wrote to memory of 1372	1956	dgoomkox.exe	svchost.exe
PID 1956 wrote to memory of 1372	1956	dgoomkox.exe	svchost.exe
PID 1956 wrote to memory of 1372	1956	dgoomkox.exe	svchost.exe
PID 1956 wrote to memory of 1372	1956	dgoomkox.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zteitkv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dgoomkox.exe" C:\Windows\SysWOW64\zteitkv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zteitkv binPath= "C:\Windows\SysWOW64\zteitkv\dgoomkox.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zteitkv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zteitkv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3684
- 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:2352

C:\Windows\SysWOW64\zteitkv\dgoomkox.exe
C:\Windows\SysWOW64\zteitkv\dgoomkox.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-21_55677129c3ec9b078fca74e0042b7667_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.6MB

MD5
e1221d59a175b6fe85c4b04e9d5249ac

SHA1
fa58d48093749dbeae0f9db490b51eb9075ce891

SHA256
d011b2d55937a95146391aee7636e3a6782a22d30af638dcbd95c20823839e24

SHA512
e1c54ce4301305f13d0c1b399a2782841c3d0e51db5e4b69596a5c4e47639d995b3b2710d159f842c46e689169fc8fc26179ad516d2975c32540d64db7f24a47

Download Submit
memory/1372-11-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/1372-19-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/1372-18-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/1372-17-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/1372-15-0x0000000000680000-0x0000000000695000-memory.dmp

Filesize
84KB

Download
memory/1956-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1956-16-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1956-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2092-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/2092-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2092-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2092-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads