tofsee | 0ce4c0093fe649941ca157dd892d42b0509692bf95956ada81094b17922d30cf

General

Target

2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe
Size

11.7MB
MD5

e83049b18c14959ed27446ef0efceba5
SHA1

283041dc1182663450547935b60ec42709412eda
SHA256

0ce4c0093fe649941ca157dd892d42b0509692bf95956ada81094b17922d30cf
SHA512

c7b8775c66e9bbf9bb0c8e0bb13cd8ffefa49e1649f50714fae6f835bd2a5b0ae3652d430a952625428e6b620371bb99be04319e7f10b1cd840db50be20caaf6
SSDEEP

3072:fLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:WOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4428	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\qyromvn\ImagePath = "C:\\Windows\\SysWOW64\\qyromvn\\hcgyozbz.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe

Deletes itself 1 IoCs

pid	Process
4868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1108	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1108 set thread context of 4868	1108	hcgyozbz.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4900	sc.exe
3496	sc.exe
2372	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
4668	3728	WerFault.exe	84
224	1108	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-29_e83049b18c14959ed27446ef0efceba5_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	hcgyozbz.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 1132	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	86
PID 3728 wrote to memory of 1132	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	86
PID 3728 wrote to memory of 1132	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	86
PID 3728 wrote to memory of 5028	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	88
PID 3728 wrote to memory of 5028	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	88
PID 3728 wrote to memory of 5028	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	88
PID 3728 wrote to memory of 4900	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	90
PID 3728 wrote to memory of 4900	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	90
PID 3728 wrote to memory of 4900	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	90
PID 3728 wrote to memory of 3496	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	92
PID 3728 wrote to memory of 3496	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	92
PID 3728 wrote to memory of 3496	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	92
PID 3728 wrote to memory of 2372	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	94
PID 3728 wrote to memory of 2372	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	94
PID 3728 wrote to memory of 2372	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	94
PID 3728 wrote to memory of 4428	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	97
PID 3728 wrote to memory of 4428	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	97
PID 3728 wrote to memory of 4428	3728	2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe	97
PID 1108 wrote to memory of 4868	1108	hcgyozbz.exe	103
PID 1108 wrote to memory of 4868	1108	hcgyozbz.exe	103
PID 1108 wrote to memory of 4868	1108	hcgyozbz.exe	103
PID 1108 wrote to memory of 4868	1108	hcgyozbz.exe	103
PID 1108 wrote to memory of 4868	1108	hcgyozbz.exe	103

C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qyromvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1132
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\qyromvn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qyromvn binPath= "C:\Windows\SysWOW64\qyromvn\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qyromvn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qyromvn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- 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:4428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 1036
  2⤵
  - Program crash
  PID:4668

C:\Windows\SysWOW64\qyromvn\hcgyozbz.exe
C:\Windows\SysWOW64\qyromvn\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-29_e83049b18c14959ed27446ef0efceba5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1108 -s 516
  2⤵
  - Program crash
  PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3728 -ip 3728
1⤵
PID:4000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1108 -ip 1108
1⤵
PID:380

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\hcgyozbz.exe

Filesize
14.8MB

MD5
2197604aa92ad68759c8ab3c66bdc5bc

SHA1
d9e3f6a9ad9b6682bbe6d3fb9b2216bc74e5d6e7

SHA256
a79d4b6eb910364e750e1b3c6de27903c152218461d697be135098e92817de44

SHA512
cac7fadc1cd6b2ce8e9258d745ec3f2eba8e59601e24005d3e0c74e70d74fc2f774161dafa325f2bd46d1270e8735d58d3573739afb1c7b52337b6380ce885b2

Download Submit
memory/1108-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1108-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1108-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1108-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3728-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3728-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3728-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3728-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3728-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3728-1-0x0000000000740000-0x0000000000840000-memory.dmp

Filesize
1024KB

Download
memory/4868-14-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/4868-16-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download
memory/4868-17-0x00000000008B0000-0x00000000008C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads