tofsee | b0bdf6212ea9483d04f5ad47a0d4af05f379eeddbee38b13627ad921af336bf3

General

Target

2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe
Size

11.3MB
MD5

041bff40cf772c28086f2136218489f2
SHA1

a933c80b433a90b7985599f6d7b4a498cf2c75d7
SHA256

b0bdf6212ea9483d04f5ad47a0d4af05f379eeddbee38b13627ad921af336bf3
SHA512

77c8cf466a70b5ff5545d2fe997b48c84f090f3e63c48ed9df087c5bbf76d00f2132a3173fd792caee7c12621adafd08fddb72631d11025edcc2204d15cf39c5
SSDEEP

3072:RLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:UOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4380	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\qgwcdpkd\ImagePath = "C:\\Windows\\SysWOW64\\qgwcdpkd\\tnnepypr.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe

Deletes itself 1 IoCs

pid	Process
3044	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4324	tnnepypr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4324 set thread context of 3044	4324	tnnepypr.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
4056	sc.exe
2548	sc.exe
3816	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
1800	2260	WerFault.exe	81
2392	4324	WerFault.exe	92

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.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	tnnepypr.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 3488	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	82
PID 2260 wrote to memory of 3488	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	82
PID 2260 wrote to memory of 3488	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	82
PID 2260 wrote to memory of 1564	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	84
PID 2260 wrote to memory of 1564	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	84
PID 2260 wrote to memory of 1564	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	84
PID 2260 wrote to memory of 2548	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	86
PID 2260 wrote to memory of 2548	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	86
PID 2260 wrote to memory of 2548	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	86
PID 2260 wrote to memory of 3816	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	88
PID 2260 wrote to memory of 3816	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	88
PID 2260 wrote to memory of 3816	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	88
PID 2260 wrote to memory of 4056	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	90
PID 2260 wrote to memory of 4056	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	90
PID 2260 wrote to memory of 4056	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	90
PID 2260 wrote to memory of 4380	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	93
PID 2260 wrote to memory of 4380	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	93
PID 2260 wrote to memory of 4380	2260	2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe	93
PID 4324 wrote to memory of 3044	4324	tnnepypr.exe	102
PID 4324 wrote to memory of 3044	4324	tnnepypr.exe	102
PID 4324 wrote to memory of 3044	4324	tnnepypr.exe	102
PID 4324 wrote to memory of 3044	4324	tnnepypr.exe	102
PID 4324 wrote to memory of 3044	4324	tnnepypr.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qgwcdpkd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tnnepypr.exe" C:\Windows\SysWOW64\qgwcdpkd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qgwcdpkd binPath= "C:\Windows\SysWOW64\qgwcdpkd\tnnepypr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qgwcdpkd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qgwcdpkd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4056
- 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:4380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 668
  2⤵
  - Program crash
  PID:1800

C:\Windows\SysWOW64\qgwcdpkd\tnnepypr.exe
C:\Windows\SysWOW64\qgwcdpkd\tnnepypr.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-31_041bff40cf772c28086f2136218489f2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 508
  2⤵
  - Program crash
  PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2260 -ip 2260
1⤵
PID:3580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4324 -ip 4324
1⤵
PID:2692

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\tnnepypr.exe

Filesize
15.0MB

MD5
31662ab62107e8f6583a83384594711b

SHA1
0f18bde661495e638aed3d198e53536915f4e91e

SHA256
3e569fcd1f2429be2345f3696d401fe14e663de33ec9cc608a061c2dbed640fe

SHA512
e1e0fcf8a8359e79148d8871b9881a1cf51fa607863ebc112774d425e9e69a75a883d4a10c87bec4a94252ca0eaeac36fb4284611b4e03c18fbc49888001d60e

Download Submit
memory/2260-8-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/2260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-2-0x00000000005A0000-0x00000000005B3000-memory.dmp

Filesize
76KB

Download
memory/2260-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2260-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/3044-16-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/3044-14-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/3044-17-0x00000000004D0000-0x00000000004E5000-memory.dmp

Filesize
84KB

Download
memory/4324-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4324-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4324-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4324-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads