tofsee | 2e27b402a19db959fac5b96e42dc07d6249d22f929c34af2fe21b36b1343304e

Analysis

max time kernel
144s
max time network
117s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
30/03/2025, 21:02

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General

Target

2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe
Size

12.8MB
MD5

b3fe57536752c8d7d2448db15f67da9a
SHA1

a13fc2dde7e38c376d31112c7e1667cc94a1ce5b
SHA256

2e27b402a19db959fac5b96e42dc07d6249d22f929c34af2fe21b36b1343304e
SHA512

76a0d2acd265ecd1ac73a6b234b4e8a7f6087977982657b31023f84e3dcfbb499a9ed52972e19bb63e1ae1991a511b122b0a343c91dfe005b90a07816fa50d33
SSDEEP

24576:6PQuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuz:

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\ahzpcfmn = "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
2708	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\ahzpcfmn\ImagePath = "C:\\Windows\\SysWOW64\\ahzpcfmn\\conbmwey.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	conbmwey.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2884	2776	conbmwey.exe	40

Launches sc.exe 3 IoCs

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

pid	Process
2472	sc.exe
2668	sc.exe
2924	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.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	conbmwey.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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 30 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2844	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	29
PID 2268 wrote to memory of 2844	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	29
PID 2268 wrote to memory of 2844	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	29
PID 2268 wrote to memory of 2844	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	29
PID 2268 wrote to memory of 2348	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	31
PID 2268 wrote to memory of 2348	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	31
PID 2268 wrote to memory of 2348	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	31
PID 2268 wrote to memory of 2348	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	31
PID 2268 wrote to memory of 2924	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	33
PID 2268 wrote to memory of 2924	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	33
PID 2268 wrote to memory of 2924	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	33
PID 2268 wrote to memory of 2924	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	33
PID 2268 wrote to memory of 2472	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	35
PID 2268 wrote to memory of 2472	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	35
PID 2268 wrote to memory of 2472	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	35
PID 2268 wrote to memory of 2472	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	35
PID 2268 wrote to memory of 2668	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	37
PID 2268 wrote to memory of 2668	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	37
PID 2268 wrote to memory of 2668	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	37
PID 2268 wrote to memory of 2668	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	37
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2776 wrote to memory of 2884	2776	conbmwey.exe	40
PID 2268 wrote to memory of 2708	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	41
PID 2268 wrote to memory of 2708	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	41
PID 2268 wrote to memory of 2708	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	41
PID 2268 wrote to memory of 2708	2268	2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ahzpcfmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\conbmwey.exe" C:\Windows\SysWOW64\ahzpcfmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ahzpcfmn binPath= "C:\Windows\SysWOW64\ahzpcfmn\conbmwey.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ahzpcfmn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2472
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ahzpcfmn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2668
- 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:2708

C:\Windows\SysWOW64\ahzpcfmn\conbmwey.exe
C:\Windows\SysWOW64\ahzpcfmn\conbmwey.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_b3fe57536752c8d7d2448db15f67da9a_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2884

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\conbmwey.exe

Filesize
10.4MB

MD5
e4a5865a60dc0986fe5d9392fca833ec

SHA1
429a9f8c745a95739a0e52857024d46fac3e42b8

SHA256
b30911940a1b94b75861301de8bd18ed7ae6bff3db5761ed46d39bed5f7c5c3d

SHA512
0d29cd8f26cb3db14a9b03374b41d7d361fff8cf72fd9489e5980fe653bd61694fa2b503607ff42406aceab2b784fa5ed4a11031c68307288974b537f15f7732

Download Submit
memory/2268-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2268-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2268-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2268-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download
memory/2268-14-0x0000000000400000-0x00000000008A2000-memory.dmp

Filesize
4.6MB

Download
memory/2776-13-0x0000000000400000-0x00000000008A2000-memory.dmp

Filesize
4.6MB

Download
memory/2884-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2884-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads