tofsee | c51a7e68b13cd19ac5f8018136be3dd56b72fd5eb2f441753bb760c5494ac8ec

General

Target

2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
Size

11.4MB
MD5

1fd39ea0fb754241ec179ae2975708ff
SHA1

a869c4b2113ba693ce6318d45b4c9ccc975d322d
SHA256

c51a7e68b13cd19ac5f8018136be3dd56b72fd5eb2f441753bb760c5494ac8ec
SHA512

f223cfa23e0546b6757880ad92ff28dbdf161641b7853291f61067e27b098e3cdc02d4985054bed89afbba2a939414153f0a7b1b88dad86147442632106be212
SSDEEP

24576:26WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:3WdLQk

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
1948	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\cwqgybep\ImagePath = "C:\\Windows\\SysWOW64\\cwqgybep\\jiwymjkc.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	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe

Deletes itself 1 IoCs

pid	Process
4220	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
424	jiwymjkc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 424 set thread context of 4220	424	jiwymjkc.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2496	sc.exe
1132	sc.exe
3152	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
5028	4752	WerFault.exe	83
1960	424	WerFault.exe	96

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	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jiwymjkc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 3552	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	86
PID 4752 wrote to memory of 3552	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	86
PID 4752 wrote to memory of 3552	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	86
PID 4752 wrote to memory of 1028	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	88
PID 4752 wrote to memory of 1028	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	88
PID 4752 wrote to memory of 1028	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	88
PID 4752 wrote to memory of 2496	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	90
PID 4752 wrote to memory of 2496	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	90
PID 4752 wrote to memory of 2496	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	90
PID 4752 wrote to memory of 1132	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	92
PID 4752 wrote to memory of 1132	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	92
PID 4752 wrote to memory of 1132	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	92
PID 4752 wrote to memory of 3152	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	94
PID 4752 wrote to memory of 3152	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	94
PID 4752 wrote to memory of 3152	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	94
PID 4752 wrote to memory of 1948	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	97
PID 4752 wrote to memory of 1948	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	97
PID 4752 wrote to memory of 1948	4752	2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe	97
PID 424 wrote to memory of 4220	424	jiwymjkc.exe	102
PID 424 wrote to memory of 4220	424	jiwymjkc.exe	102
PID 424 wrote to memory of 4220	424	jiwymjkc.exe	102
PID 424 wrote to memory of 4220	424	jiwymjkc.exe	102
PID 424 wrote to memory of 4220	424	jiwymjkc.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cwqgybep\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jiwymjkc.exe" C:\Windows\SysWOW64\cwqgybep\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cwqgybep binPath= "C:\Windows\SysWOW64\cwqgybep\jiwymjkc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cwqgybep "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1132
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cwqgybep
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3152
- 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:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 648
  2⤵
  - Program crash
  PID:5028

C:\Windows\SysWOW64\cwqgybep\jiwymjkc.exe
C:\Windows\SysWOW64\cwqgybep\jiwymjkc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_1fd39ea0fb754241ec179ae2975708ff_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:424
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 424 -s 560
  2⤵
  - Program crash
  PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4752 -ip 4752
1⤵
PID:1840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 424 -ip 424
1⤵
PID:4548

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\jiwymjkc.exe

Filesize
11.3MB

MD5
bec300e99e52da041f6c03a51b6ce623

SHA1
0c70983884996620a9b0623ea8b71caa44a7cb59

SHA256
24a3f5ebdf50c3c92321cc7317a04bba0c8af0ac4cb828f16d18faee2d72a860

SHA512
5a03c146d7be4fa2862df52c4dea634dcf8b18de355252a458b5cceabc9ff452596bac7f4b51fa81222024a26c709ead67d627b9a6381a19e2c01ab72837ccca

Download Submit
memory/424-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/424-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/424-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/424-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4220-14-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download
memory/4220-16-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download
memory/4220-17-0x00000000008E0000-0x00000000008F5000-memory.dmp

Filesize
84KB

Download
memory/4752-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4752-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4752-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4752-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/4752-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4752-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads