tofsee | 4b473923cc919a95d186f942b64234135bdd394d807125b5bbe156880468cd1d

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 10:44

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General

Target

2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe
Size

12.8MB
MD5

c3e93ca2e3da9a3312d9135707fe915c
SHA1

35f259f2b8460d68f3620c13cdb94fbb105b7897
SHA256

4b473923cc919a95d186f942b64234135bdd394d807125b5bbe156880468cd1d
SHA512

e4eafa3e69784456cb0d0fde4edbee2a933d05af833701e0c0e2f22e872396ae7306f2822996be883d187c0ca0017642596a888d1e1f42ca332feaee40791947
SSDEEP

24576:PEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZT:Mfotx

Score

10^/10

tofsee defense_evasion discovery 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

defense_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\luqsrjjh = "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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2964	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\luqsrjjh\ImagePath = "C:\\Windows\\SysWOW64\\luqsrjjh\\sedrcmuo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2932	sedrcmuo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2700	2932	sedrcmuo.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2172	sc.exe
2104	sc.exe
2896	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

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	cmd.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	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_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	sedrcmuo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 588 wrote to memory of 2512	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	31
PID 588 wrote to memory of 2512	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	31
PID 588 wrote to memory of 2512	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	31
PID 588 wrote to memory of 2512	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	31
PID 588 wrote to memory of 2416	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	33
PID 588 wrote to memory of 2416	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	33
PID 588 wrote to memory of 2416	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	33
PID 588 wrote to memory of 2416	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	33
PID 588 wrote to memory of 2172	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	35
PID 588 wrote to memory of 2172	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	35
PID 588 wrote to memory of 2172	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	35
PID 588 wrote to memory of 2172	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	35
PID 588 wrote to memory of 2104	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	37
PID 588 wrote to memory of 2104	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	37
PID 588 wrote to memory of 2104	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	37
PID 588 wrote to memory of 2104	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	37
PID 588 wrote to memory of 2896	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	39
PID 588 wrote to memory of 2896	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	39
PID 588 wrote to memory of 2896	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	39
PID 588 wrote to memory of 2896	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	39
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 2932 wrote to memory of 2700	2932	sedrcmuo.exe	42
PID 588 wrote to memory of 2964	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	43
PID 588 wrote to memory of 2964	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	43
PID 588 wrote to memory of 2964	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	43
PID 588 wrote to memory of 2964	588	2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\luqsrjjh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sedrcmuo.exe" C:\Windows\SysWOW64\luqsrjjh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create luqsrjjh binPath= "C:\Windows\SysWOW64\luqsrjjh\sedrcmuo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description luqsrjjh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start luqsrjjh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2964

C:\Windows\SysWOW64\luqsrjjh\sedrcmuo.exe
C:\Windows\SysWOW64\luqsrjjh\sedrcmuo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_c3e93ca2e3da9a3312d9135707fe915c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2700

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\sedrcmuo.exe

Filesize
13.0MB

MD5
b03700b3fce42ab8d9d4b60ac85fe90b

SHA1
9e5c1eadd43569fcd1067bc44f279126634b0c56

SHA256
4a4b4e44b427a78b606fa42c58ba59ab5dcf64657be000126bd6faec6ba6f148

SHA512
fcc2ee78d66bba5ceb5d322849251c6f58f6a476e2a95536baa9dce28a1aa0ed8ae5d1f6f9f93dce977c5043d9897624b018cef72913b715ddf0796509922daa

Download Submit
memory/588-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/588-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/588-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/588-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/588-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/588-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2700-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2932-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads