tofsee | 243938a63bcc06a2b08d3801666db579d1ea72aa25c41c772b6a98c9b2d42373

Analysis

max time kernel
146s
max time network
132s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 19:49

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General

Target

2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe
Size

12.6MB
MD5

81a382a5576df8f00829954dd03dcd9a
SHA1

e4af255bf6240265fa8cb8f9bb8a6adef61cbbf6
SHA256

243938a63bcc06a2b08d3801666db579d1ea72aa25c41c772b6a98c9b2d42373
SHA512

4ce8399b9bdacd33df2836c087dcf4dbd2eec1aed5763e988350121113b88f21eee00eebf01886e6b3f598c0460fc2702afaff03d0171db069634928c4d4ea3f
SSDEEP

6144:RXxZs2EcxJ8GD96ySzTVaFRFX53ncNnUUMMMMMMMMb5:RXzuKJ8GD96ySzTcANnQMMMMMMMb

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\ecisxypc = "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
2848	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\ecisxypc\ImagePath = "C:\\Windows\\SysWOW64\\ecisxypc\\vproieot.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
816	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	vproieot.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 816	2840	vproieot.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3012	sc.exe
2828	sc.exe
2996	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vproieot.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 1652	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	30
PID 1968 wrote to memory of 1652	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	30
PID 1968 wrote to memory of 1652	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	30
PID 1968 wrote to memory of 1652	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	30
PID 1968 wrote to memory of 2396	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	32
PID 1968 wrote to memory of 2396	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	32
PID 1968 wrote to memory of 2396	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	32
PID 1968 wrote to memory of 2396	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	32
PID 1968 wrote to memory of 3012	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	34
PID 1968 wrote to memory of 3012	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	34
PID 1968 wrote to memory of 3012	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	34
PID 1968 wrote to memory of 3012	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	34
PID 1968 wrote to memory of 2828	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	36
PID 1968 wrote to memory of 2828	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	36
PID 1968 wrote to memory of 2828	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	36
PID 1968 wrote to memory of 2828	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	36
PID 1968 wrote to memory of 2996	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	38
PID 1968 wrote to memory of 2996	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	38
PID 1968 wrote to memory of 2996	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	38
PID 1968 wrote to memory of 2996	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	38
PID 1968 wrote to memory of 2848	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	40
PID 1968 wrote to memory of 2848	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	40
PID 1968 wrote to memory of 2848	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	40
PID 1968 wrote to memory of 2848	1968	2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe	40
PID 2840 wrote to memory of 816	2840	vproieot.exe	43
PID 2840 wrote to memory of 816	2840	vproieot.exe	43
PID 2840 wrote to memory of 816	2840	vproieot.exe	43
PID 2840 wrote to memory of 816	2840	vproieot.exe	43
PID 2840 wrote to memory of 816	2840	vproieot.exe	43
PID 2840 wrote to memory of 816	2840	vproieot.exe	43

C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ecisxypc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vproieot.exe" C:\Windows\SysWOW64\ecisxypc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ecisxypc binPath= "C:\Windows\SysWOW64\ecisxypc\vproieot.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ecisxypc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ecisxypc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2996
- 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:2848

C:\Windows\SysWOW64\ecisxypc\vproieot.exe
C:\Windows\SysWOW64\ecisxypc\vproieot.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-23_81a382a5576df8f00829954dd03dcd9a_karagany_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:816

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\vproieot.exe

Filesize
11.3MB

MD5
f37c5e5be343ec6c5ec592b72faa69d4

SHA1
37eb6c50d4d0dd1b46612466cfb419d147987be0

SHA256
927a42dcf0576b5a911f63c303a3700e1eff40e8148d882356e80cd3642e554f

SHA512
f77cfa65b08dfc16a132e5b90dd9e1339581bf96a2cfb61c66ca079198817302f7fd7ed4447f435c233baeca3a139a1af49a911496ce03577eaaecc8bd66ad60

Download Submit
memory/816-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/816-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/816-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/816-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/816-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1968-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1968-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1968-6-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1968-7-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1968-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1968-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2840-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads