tofsee | f9fcec7285c18f2bf701fc31f799ea3a28bbb84a51290d03ec010dc3559f2f10

Analysis

max time kernel
144s
max time network
121s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 20:15

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General

Target

2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe
Size

11.0MB
MD5

0d5531100e7d9824de6e5aecffbe9341
SHA1

5ced127d1e9ae254d058712c395cf8bda7f27ab7
SHA256

f9fcec7285c18f2bf701fc31f799ea3a28bbb84a51290d03ec010dc3559f2f10
SHA512

f0cb42ec59009bba4ef7801b46609ed4d5e6772fe99823f4046f9a52bd27eaeb22f0866d4538ef4f7be755e8b54862c6f3e2702d21c1186dbb2af3a1a7a35b32
SSDEEP

6144:WLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQF:HTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\ipzbrsch = "0"	svchost.exe

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
2904	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\ipzbrsch\ImagePath = "C:\\Windows\\SysWOW64\\ipzbrsch\\prkvckyo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2144	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2956	prkvckyo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 2144	2956	prkvckyo.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2484	sc.exe
2220	sc.exe
2900	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	prkvckyo.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	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 3056	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	30
PID 848 wrote to memory of 3056	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	30
PID 848 wrote to memory of 3056	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	30
PID 848 wrote to memory of 3056	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	30
PID 848 wrote to memory of 2092	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	32
PID 848 wrote to memory of 2092	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	32
PID 848 wrote to memory of 2092	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	32
PID 848 wrote to memory of 2092	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	32
PID 848 wrote to memory of 2484	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	34
PID 848 wrote to memory of 2484	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	34
PID 848 wrote to memory of 2484	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	34
PID 848 wrote to memory of 2484	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	34
PID 848 wrote to memory of 2220	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	36
PID 848 wrote to memory of 2220	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	36
PID 848 wrote to memory of 2220	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	36
PID 848 wrote to memory of 2220	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	36
PID 848 wrote to memory of 2900	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	38
PID 848 wrote to memory of 2900	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	38
PID 848 wrote to memory of 2900	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	38
PID 848 wrote to memory of 2900	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	38
PID 848 wrote to memory of 2904	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	41
PID 848 wrote to memory of 2904	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	41
PID 848 wrote to memory of 2904	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	41
PID 848 wrote to memory of 2904	848	2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe	41
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43
PID 2956 wrote to memory of 2144	2956	prkvckyo.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ipzbrsch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\prkvckyo.exe" C:\Windows\SysWOW64\ipzbrsch\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ipzbrsch binPath= "C:\Windows\SysWOW64\ipzbrsch\prkvckyo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ipzbrsch "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ipzbrsch
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2904

C:\Windows\SysWOW64\ipzbrsch\prkvckyo.exe
C:\Windows\SysWOW64\ipzbrsch\prkvckyo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0d5531100e7d9824de6e5aecffbe9341_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⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\prkvckyo.exe

Filesize
12.7MB

MD5
4c1da8304c0c792024c3f409530e4333

SHA1
d343731b27cef9ee25796a75891ee3d8ea7af447

SHA256
b3a142fa39700eab5ee536c3c33754581242f87e41223ecabf26f6bd2e688f82

SHA512
02035ffb7b46728dcd990e5fa5f297dcab565afafbc62797c9baf4bd311abb040925faf080f2ab033c184b14c2916cef0740095a430b326fa77d2728f1d73755

Download Submit
memory/848-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/848-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/848-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/848-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/848-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/2144-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2144-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2144-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2144-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2144-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2956-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads