tofsee | 545503d642d28703407cbdbdc9ec2ab84d317871bf8c79851c8fc838ddce6a29

General

Target

2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe
Size

12.0MB
MD5

14e9bae3e052cf9acd46295e023aee81
SHA1

a1f3bd03b3296642e67f343783c77b50b9097af2
SHA256

545503d642d28703407cbdbdc9ec2ab84d317871bf8c79851c8fc838ddce6a29
SHA512

2eee33d3482a021cae7008519c8ed34e48c9f35ac03fdc988f7edbf7016d421938555504be9fad554d3606abf6cb9fe7bcfed56397a9a92cd679e629b2d939e2
SSDEEP

6144:Z2MDRs+9skCSisUPOdxJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJh:Z2y6eCSio

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
3324	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\mppzovxh\ImagePath = "C:\\Windows\\SysWOW64\\mppzovxh\\mrbwqczb.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
4968	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1236	mrbwqczb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1236 set thread context of 4968	1236	mrbwqczb.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
856	sc.exe
5944	sc.exe
4792	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5012	1236	WerFault.exe	102
2900	312	WerFault.exe	85

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mrbwqczb.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 23 IoCs

description	pid	Process	procid_target
PID 312 wrote to memory of 704	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	88
PID 312 wrote to memory of 704	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	88
PID 312 wrote to memory of 704	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	88
PID 312 wrote to memory of 4536	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	91
PID 312 wrote to memory of 4536	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	91
PID 312 wrote to memory of 4536	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	91
PID 312 wrote to memory of 5944	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	94
PID 312 wrote to memory of 5944	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	94
PID 312 wrote to memory of 5944	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	94
PID 312 wrote to memory of 4792	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	96
PID 312 wrote to memory of 4792	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	96
PID 312 wrote to memory of 4792	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	96
PID 312 wrote to memory of 856	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	100
PID 312 wrote to memory of 856	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	100
PID 312 wrote to memory of 856	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	100
PID 1236 wrote to memory of 4968	1236	mrbwqczb.exe	103
PID 1236 wrote to memory of 4968	1236	mrbwqczb.exe	103
PID 1236 wrote to memory of 4968	1236	mrbwqczb.exe	103
PID 1236 wrote to memory of 4968	1236	mrbwqczb.exe	103
PID 1236 wrote to memory of 4968	1236	mrbwqczb.exe	103
PID 312 wrote to memory of 3324	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	105
PID 312 wrote to memory of 3324	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	105
PID 312 wrote to memory of 3324	312	2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mppzovxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mrbwqczb.exe" C:\Windows\SysWOW64\mppzovxh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mppzovxh binPath= "C:\Windows\SysWOW64\mppzovxh\mrbwqczb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mppzovxh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mppzovxh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:856
- 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:3324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 312 -s 1032
  2⤵
  - Program crash
  PID:2900

C:\Windows\SysWOW64\mppzovxh\mrbwqczb.exe
C:\Windows\SysWOW64\mppzovxh\mrbwqczb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_14e9bae3e052cf9acd46295e023aee81_amadey_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 516
  2⤵
  - Program crash
  PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1236 -ip 1236
1⤵
PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 312 -ip 312
1⤵
PID:812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.5MB

MD5
352e51d529533e43bc3aaf043c4ee045

SHA1
8f8e131ba4140186904e418e356f58579dbb2897

SHA256
a4857c48c3695d233dac1376314e0578dd47febc96b91e6af751c1f223faa9e4

SHA512
86847204c611a0c4a99f654e87af6b149dccce186f1781b6f3b0dc43207a38a4655dac05a893a4c08e82d4603b855d712a778ccdfc06e8984c013b33144a399b

Download Submit
memory/312-1-0x0000000006DE0000-0x0000000006EE0000-memory.dmp

Filesize
1024KB

Download
memory/312-2-0x0000000006D70000-0x0000000006D83000-memory.dmp

Filesize
76KB

Download
memory/312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/312-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/312-12-0x0000000006D70000-0x0000000006D83000-memory.dmp

Filesize
76KB

Download
memory/312-11-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/1236-10-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/4968-8-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/4968-14-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/4968-15-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads