tofsee | 06034b65a352da9d58f9c1cd9ce5c86cd898f7b5a0edcdc5ff346246bff7d9c7

General

Target

2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe
Size

13.5MB
MD5

df21224853d1acdcaa4665833b1ae5f6
SHA1

2a882a20037cba879454673069abe388f03527dc
SHA256

06034b65a352da9d58f9c1cd9ce5c86cd898f7b5a0edcdc5ff346246bff7d9c7
SHA512

f0a54259984fd809e7fd7b6075446fd1442a3a79db5255380e04ba49d872e9eee9a06421e2e68f2b0dff9499d68730b34a67a3019a6e79a6efae830e91043443
SSDEEP

6144:X+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:X+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

5036 netsh.exe

pid	process
5036	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\drvkkiwz\ImagePath = "C:\\Windows\\SysWOW64\\drvkkiwz\\nmcyfbg.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_df21224853d1acdcaa4665833b1ae5f6_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2736 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

nmcyfbg.exe

pid process

2132 nmcyfbg.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

nmcyfbg.exe

description pid process target process

PID 2132 set thread context of 2736 2132 nmcyfbg.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

860 sc.exe
3416 sc.exe
2808 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2736	svchost.exe

pid	process
2132	nmcyfbg.exe

description	pid	process	target process
PID 2132 set thread context of 2736	2132	nmcyfbg.exe	svchost.exe

pid	process
860	sc.exe
3416	sc.exe
2808	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:

netsh.exesvchost.execmd.exesc.exesc.exesc.exenmcyfbg.exe2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmcyfbg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exenmcyfbg.exe

description	pid	process	target process
PID 4612 wrote to memory of 3560	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 3560	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 3560	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 3680	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 3680	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 3680	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	cmd.exe
PID 4612 wrote to memory of 860	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 860	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 860	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 3416	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 3416	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 3416	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 2808	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 2808	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 2808	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	sc.exe
PID 4612 wrote to memory of 5036	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	netsh.exe
PID 4612 wrote to memory of 5036	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	netsh.exe
PID 4612 wrote to memory of 5036	4612	2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe	netsh.exe
PID 2132 wrote to memory of 2736	2132	nmcyfbg.exe	svchost.exe
PID 2132 wrote to memory of 2736	2132	nmcyfbg.exe	svchost.exe
PID 2132 wrote to memory of 2736	2132	nmcyfbg.exe	svchost.exe
PID 2132 wrote to memory of 2736	2132	nmcyfbg.exe	svchost.exe
PID 2132 wrote to memory of 2736	2132	nmcyfbg.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\drvkkiwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nmcyfbg.exe" C:\Windows\SysWOW64\drvkkiwz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create drvkkiwz binPath= "C:\Windows\SysWOW64\drvkkiwz\nmcyfbg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description drvkkiwz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start drvkkiwz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:5036

C:\Windows\SysWOW64\drvkkiwz\nmcyfbg.exe
C:\Windows\SysWOW64\drvkkiwz\nmcyfbg.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-09-21_df21224853d1acdcaa4665833b1ae5f6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2132
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2736

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\nmcyfbg.exe

Filesize
12.8MB

MD5
a2cc7ac53f2e4c15328ae7c71de6be5b

SHA1
3bb0962f8d8afd44f87196a0af4bad1212efae33

SHA256
a2cdd9011f31af99af192b0d41d5773cbaf4a9cf8564f90c3eba118ca10efc19

SHA512
a405a81ce7864f97fce0be60c79f18f0dd38225f0bad7bbbcfe08bc1271ac16f368e4a8b2e159760299ab0379cffe93e5fa72d83cf47604f0a3e16da8dba38c5

Download Submit
memory/2132-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2132-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2132-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2736-11-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2736-14-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2736-16-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/4612-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/4612-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4612-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4612-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads