tofsee | 50702048e2c24d40bc9237f84935d639c77c456714d01f01b510dc541a61207e

Analysis

max time kernel
144s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:15

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General

Target

2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe
Size

11.8MB
MD5

55b741de0468d7b41242082d699a722f
SHA1

e724edb7ff73d1d8989df2baac16a337f02c7668
SHA256

50702048e2c24d40bc9237f84935d639c77c456714d01f01b510dc541a61207e
SHA512

fca53d3688ef8b8c0600ee09814141329aa57acbe1640cb3c049b0ba9e9867f4cb38bcfb0209817027237b781c64d6662abfc9d0337d282c3c5336ead96141a0
SSDEEP

24576:NEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZz:2fot

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\yrdmpogu = "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
1632	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\yrdmpogu\ImagePath = "C:\\Windows\\SysWOW64\\yrdmpogu\\tsgiwtum.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2756	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	tsgiwtum.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 2756	2812	tsgiwtum.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1224	sc.exe
2260	sc.exe
2744	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_55b741de0468d7b41242082d699a722f_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	tsgiwtum.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 2108 wrote to memory of 2536	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	30
PID 2108 wrote to memory of 2536	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	30
PID 2108 wrote to memory of 2536	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	30
PID 2108 wrote to memory of 2536	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	30
PID 2108 wrote to memory of 2524	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	32
PID 2108 wrote to memory of 2524	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	32
PID 2108 wrote to memory of 2524	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	32
PID 2108 wrote to memory of 2524	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	32
PID 2108 wrote to memory of 1224	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	34
PID 2108 wrote to memory of 1224	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	34
PID 2108 wrote to memory of 1224	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	34
PID 2108 wrote to memory of 1224	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	34
PID 2108 wrote to memory of 2260	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	36
PID 2108 wrote to memory of 2260	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	36
PID 2108 wrote to memory of 2260	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	36
PID 2108 wrote to memory of 2260	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	36
PID 2108 wrote to memory of 2744	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	38
PID 2108 wrote to memory of 2744	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	38
PID 2108 wrote to memory of 2744	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	38
PID 2108 wrote to memory of 2744	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	38
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2812 wrote to memory of 2756	2812	tsgiwtum.exe	41
PID 2108 wrote to memory of 1632	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	42
PID 2108 wrote to memory of 1632	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	42
PID 2108 wrote to memory of 1632	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	42
PID 2108 wrote to memory of 1632	2108	2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yrdmpogu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tsgiwtum.exe" C:\Windows\SysWOW64\yrdmpogu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yrdmpogu binPath= "C:\Windows\SysWOW64\yrdmpogu\tsgiwtum.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yrdmpogu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yrdmpogu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:1632

C:\Windows\SysWOW64\yrdmpogu\tsgiwtum.exe
C:\Windows\SysWOW64\yrdmpogu\tsgiwtum.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_55b741de0468d7b41242082d699a722f_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:2756

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\tsgiwtum.exe

Filesize
14.1MB

MD5
bbc6ca205c2adb9be7064012c26aa262

SHA1
caa2a48f4b2e80700a4e4695c358d411e34b0828

SHA256
d9c0af84e00b13d95c5fe42826649359f706437fe63ac4789f51684949ea2e59

SHA512
cdd5d3889aa164c844041c2d83d0fffdbdffb53de7ca4889ad079dffb37bbdcd5fe0ede57072a579801ec9f7334b96853ccc1454f1388775e741a457eef5b8ea

Download Submit
memory/2108-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2108-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2108-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2108-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2756-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2756-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2812-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads