tofsee | f04e4fe10026a1970e62a30ef648aa4de8654c0ff76305cb699c866a630ba82b

Analysis

max time kernel
145s
max time network
124s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 23:18

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General

Target

2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe
Size

13.0MB
MD5

4dafc0d8a7860dad94132ac11c4c1445
SHA1

0eed1fa871a79defe25949a4ac45e3dd6c82ea1f
SHA256

f04e4fe10026a1970e62a30ef648aa4de8654c0ff76305cb699c866a630ba82b
SHA512

5248a1e14274d28ac7f0f5db121367d80dc3b4f10c8430e13a7bf1090bf061aab1541fb831bcdc65c827202b71ab19d774e8792adc97af957021e8e1a5ae22fe
SSDEEP

6144:D1wVpPJkxqmy+qzSbEnBds2UHM5wdo952N1fqHnVO9lzXXXXXXXXXXXXXXXXXXXr:IP6ot5zVng2UHMeOczX

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\wlhkvwbn = "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
2908	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\wlhkvwbn\ImagePath = "C:\\Windows\\SysWOW64\\wlhkvwbn\\npkqjwg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2124	npkqjwg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 2736	2124	npkqjwg.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
2140	sc.exe
1064	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	npkqjwg.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	cmd.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 836	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	31
PID 2264 wrote to memory of 836	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	31
PID 2264 wrote to memory of 836	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	31
PID 2264 wrote to memory of 836	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	31
PID 2264 wrote to memory of 2252	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	33
PID 2264 wrote to memory of 2252	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	33
PID 2264 wrote to memory of 2252	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	33
PID 2264 wrote to memory of 2252	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	33
PID 2264 wrote to memory of 2140	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	35
PID 2264 wrote to memory of 2140	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	35
PID 2264 wrote to memory of 2140	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	35
PID 2264 wrote to memory of 2140	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	35
PID 2264 wrote to memory of 1064	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	37
PID 2264 wrote to memory of 1064	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	37
PID 2264 wrote to memory of 1064	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	37
PID 2264 wrote to memory of 1064	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	37
PID 2264 wrote to memory of 2840	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	39
PID 2264 wrote to memory of 2840	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	39
PID 2264 wrote to memory of 2840	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	39
PID 2264 wrote to memory of 2840	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	39
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2124 wrote to memory of 2736	2124	npkqjwg.exe	42
PID 2264 wrote to memory of 2908	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	43
PID 2264 wrote to memory of 2908	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	43
PID 2264 wrote to memory of 2908	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	43
PID 2264 wrote to memory of 2908	2264	2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wlhkvwbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npkqjwg.exe" C:\Windows\SysWOW64\wlhkvwbn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wlhkvwbn binPath= "C:\Windows\SysWOW64\wlhkvwbn\npkqjwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wlhkvwbn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wlhkvwbn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- 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:2908

C:\Windows\SysWOW64\wlhkvwbn\npkqjwg.exe
C:\Windows\SysWOW64\wlhkvwbn\npkqjwg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-28_4dafc0d8a7860dad94132ac11c4c1445_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- 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:2736

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\npkqjwg.exe

Filesize
13.8MB

MD5
ce2bfa8ba22f53946f2d94689bbdad03

SHA1
50b96f073351bc4a6f5879316c550f641e52c087

SHA256
cb316a510fc2b3ff9fbcbe3df5d0c6fb9aab2b8918bf09bf81e93612997f0c1a

SHA512
4c043569d21b660cdbcaa236b32a0e886d1071053377a69348f0a5b9f94364b578ee759a8d9c30d20e8e31f4f3cd3cc949cd52b3203585f26091024e414c1f96

Download Submit
memory/2124-13-0x0000000000400000-0x0000000000939000-memory.dmp

Filesize
5.2MB

Download
memory/2264-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2264-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2264-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

Filesize
1024KB

Download
memory/2264-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2264-14-0x0000000000400000-0x0000000000939000-memory.dmp

Filesize
5.2MB

Download
memory/2264-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2736-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2736-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads