tofsee | c878285d30d32d75b6ed5a17f5ef3ce3fd264ac4ad367264e32b81dab57ee549

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/01/2025, 19:06

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General

Target

2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe
Size

11.2MB
MD5

3b455b31246b8a9a6548681d39c5fb5d
SHA1

822afd920a826ff81013822285e6e82fe81bf076
SHA256

c878285d30d32d75b6ed5a17f5ef3ce3fd264ac4ad367264e32b81dab57ee549
SHA512

83290f9a90590015df1f3e0a3643cc98e02998ea38ba2f3dbfd3c9832bbb19465e7503a98cdaab13c1c866796cc2ef5fe870f8961043825194f391bc20750df3
SSDEEP

6144:nLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQw:MTYe+D2jFu+iZoUFhAz

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\eprfkviy = "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
2540	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\eprfkviy\ImagePath = "C:\\Windows\\SysWOW64\\eprfkviy\\eclmvrgc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	eclmvrgc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 2000	2588	eclmvrgc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2192	sc.exe
2932	sc.exe
2816	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	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eclmvrgc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2776	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	30
PID 2408 wrote to memory of 2776	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	30
PID 2408 wrote to memory of 2776	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	30
PID 2408 wrote to memory of 2776	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	30
PID 2408 wrote to memory of 2668	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	32
PID 2408 wrote to memory of 2668	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	32
PID 2408 wrote to memory of 2668	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	32
PID 2408 wrote to memory of 2668	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	32
PID 2408 wrote to memory of 2192	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	34
PID 2408 wrote to memory of 2192	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	34
PID 2408 wrote to memory of 2192	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	34
PID 2408 wrote to memory of 2192	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	34
PID 2408 wrote to memory of 2932	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	36
PID 2408 wrote to memory of 2932	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	36
PID 2408 wrote to memory of 2932	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	36
PID 2408 wrote to memory of 2932	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	36
PID 2408 wrote to memory of 2816	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	38
PID 2408 wrote to memory of 2816	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	38
PID 2408 wrote to memory of 2816	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	38
PID 2408 wrote to memory of 2816	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	38
PID 2408 wrote to memory of 2540	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	41
PID 2408 wrote to memory of 2540	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	41
PID 2408 wrote to memory of 2540	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	41
PID 2408 wrote to memory of 2540	2408	2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe	41
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43
PID 2588 wrote to memory of 2000	2588	eclmvrgc.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eprfkviy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eclmvrgc.exe" C:\Windows\SysWOW64\eprfkviy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2668
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eprfkviy binPath= "C:\Windows\SysWOW64\eprfkviy\eclmvrgc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eprfkviy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eprfkviy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2540

C:\Windows\SysWOW64\eprfkviy\eclmvrgc.exe
C:\Windows\SysWOW64\eprfkviy\eclmvrgc.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_3b455b31246b8a9a6548681d39c5fb5d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- 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:2000

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\eclmvrgc.exe

Filesize
12.4MB

MD5
679e122ba32653cde4253d89cc0f6702

SHA1
ed546c62169b277605164140ddd98047b123c570

SHA256
6b1d91f51d621ab7aa632c3f4dcd7ccdd9dab7fdf4e49d6a458a45a7ae8fa913

SHA512
a6194b32ffc975726a2f649f38de23edf421eacf69b4a82ff55a2f41be4c3e658731ce7922cf7b7b0c0892eaa67bfab2017ba9d8bf7ad990d632c32057992ae3

Download Submit
memory/2000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2000-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2000-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2000-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2000-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2408-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2408-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2408-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2408-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2408-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2588-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads