tofsee | 5c6e2601359a3f22947a7e94f63aa0d6c0408f069f3846f11a7efd6889642d35

General

Target

2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe
Size

12.8MB
MD5

9d5863a9ae43e0ca1a631bce9f0f8abc
SHA1

d068e742cd0a0b717ff6ee23b09b75a5730c0947
SHA256

5c6e2601359a3f22947a7e94f63aa0d6c0408f069f3846f11a7efd6889642d35
SHA512

9cc601348648b40ce12cc5166b61eca0bddfe898792b9ce0fc9f487be7f2d040b0a95a3d3e1bdf3b94c30b909c4f82ad02db121079303cc1850dcf856e958cdb
SSDEEP

24576:4EfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZv:1fot

Score

10^/10

tofsee defense_evasion discovery 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
Tofsee family
tofsee
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
2592	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\hxwqxgnz\ImagePath = "C:\\Windows\\SysWOW64\\hxwqxgnz\\nzymxhpj.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-805940606-1861219160-370298170-1000\Control Panel\International\Geo\Nation	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe

Deletes itself 1 IoCs

pid	Process
1840	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2956	nzymxhpj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 1840	2956	nzymxhpj.exe	112

Launches sc.exe 3 IoCs

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

pid	Process
1228	sc.exe
5108	sc.exe
3756	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2936	1056	WerFault.exe	83
3236	2956	WerFault.exe	105

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	nzymxhpj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.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 23 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 2920	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	94
PID 1056 wrote to memory of 2920	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	94
PID 1056 wrote to memory of 2920	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	94
PID 1056 wrote to memory of 4692	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	96
PID 1056 wrote to memory of 4692	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	96
PID 1056 wrote to memory of 4692	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	96
PID 1056 wrote to memory of 1228	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	99
PID 1056 wrote to memory of 1228	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	99
PID 1056 wrote to memory of 1228	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	99
PID 1056 wrote to memory of 5108	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	101
PID 1056 wrote to memory of 5108	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	101
PID 1056 wrote to memory of 5108	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	101
PID 1056 wrote to memory of 3756	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	103
PID 1056 wrote to memory of 3756	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	103
PID 1056 wrote to memory of 3756	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	103
PID 1056 wrote to memory of 2592	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	106
PID 1056 wrote to memory of 2592	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	106
PID 1056 wrote to memory of 2592	1056	2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe	106
PID 2956 wrote to memory of 1840	2956	nzymxhpj.exe	112
PID 2956 wrote to memory of 1840	2956	nzymxhpj.exe	112
PID 2956 wrote to memory of 1840	2956	nzymxhpj.exe	112
PID 2956 wrote to memory of 1840	2956	nzymxhpj.exe	112
PID 2956 wrote to memory of 1840	2956	nzymxhpj.exe	112

C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hxwqxgnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nzymxhpj.exe" C:\Windows\SysWOW64\hxwqxgnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hxwqxgnz binPath= "C:\Windows\SysWOW64\hxwqxgnz\nzymxhpj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hxwqxgnz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hxwqxgnz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3756
- 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:2592
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 892
  2⤵
  - Program crash
  PID:2936

C:\Windows\SysWOW64\hxwqxgnz\nzymxhpj.exe
C:\Windows\SysWOW64\hxwqxgnz\nzymxhpj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9d5863a9ae43e0ca1a631bce9f0f8abc_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2956 -s 508
  2⤵
  - Program crash
  PID:3236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1056 -ip 1056
1⤵
PID:2288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2956 -ip 2956
1⤵
PID:2912

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\nzymxhpj.exe

Filesize
13.3MB

MD5
971082daa57cb92279eda184b9a1b3b5

SHA1
ed5488526f8b1b877e130def8db431186757c600

SHA256
cb67bf763e66f36581ac8172efa697423d4b3f729549e074b71383e76c557f79

SHA512
1990c721cd0d960efb701e5db1df4c67bdcd088fe740e8a9d2f9f10a46303835bdafe8085142785f5ca969ab54f720a3e77b37ea5eea1a7eb6cbad020ddbc785

Download Submit
memory/1056-8-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/1056-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/1056-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1056-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/1840-14-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/1840-16-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/1840-17-0x0000000001280000-0x0000000001295000-memory.dmp

Filesize
84KB

Download
memory/2956-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2956-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2956-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2956-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads