tofsee | fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 21:15

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General

Target

fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe
Size

10.5MB
MD5

d86ffcc25b33e1567b2136d1ac2b4e85
SHA1

dd088c1b72bb1d8917655cc0c301f5c0fa74dafa
SHA256

fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309
SHA512

8f9ad8a7d9a292019cbaea903dd2733fc1f51419ab051541cddc55e6ba8624042b2c73ea97107daaa695408a1ad3505a424d8114d14660fcc401e08587cbf4b6
SSDEEP

49152:IN5555555555555555555555555555555555555555555555555555555555555b:O

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\pgowbese = "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
2876	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\pgowbese\ImagePath = "C:\\Windows\\SysWOW64\\pgowbese\\eraxydpc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2800	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	eraxydpc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 2800	2804	eraxydpc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
1844	sc.exe
2436	sc.exe
2440	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	cmd.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.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	eraxydpc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2420	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	30
PID 1712 wrote to memory of 2420	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	30
PID 1712 wrote to memory of 2420	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	30
PID 1712 wrote to memory of 2420	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	30
PID 1712 wrote to memory of 1320	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	32
PID 1712 wrote to memory of 1320	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	32
PID 1712 wrote to memory of 1320	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	32
PID 1712 wrote to memory of 1320	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	32
PID 1712 wrote to memory of 1844	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	34
PID 1712 wrote to memory of 1844	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	34
PID 1712 wrote to memory of 1844	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	34
PID 1712 wrote to memory of 1844	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	34
PID 1712 wrote to memory of 2436	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	36
PID 1712 wrote to memory of 2436	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	36
PID 1712 wrote to memory of 2436	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	36
PID 1712 wrote to memory of 2436	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	36
PID 1712 wrote to memory of 2440	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	38
PID 1712 wrote to memory of 2440	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	38
PID 1712 wrote to memory of 2440	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	38
PID 1712 wrote to memory of 2440	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	38
PID 1712 wrote to memory of 2876	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	41
PID 1712 wrote to memory of 2876	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	41
PID 1712 wrote to memory of 2876	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	41
PID 1712 wrote to memory of 2876	1712	fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe	41
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43
PID 2804 wrote to memory of 2800	2804	eraxydpc.exe	43

C:\Users\Admin\AppData\Local\Temp\fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe
"C:\Users\Admin\AppData\Local\Temp\fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pgowbese\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eraxydpc.exe" C:\Windows\SysWOW64\pgowbese\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pgowbese binPath= "C:\Windows\SysWOW64\pgowbese\eraxydpc.exe /d\"C:\Users\Admin\AppData\Local\Temp\fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pgowbese "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pgowbese
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2440
- 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:2876

C:\Windows\SysWOW64\pgowbese\eraxydpc.exe
C:\Windows\SysWOW64\pgowbese\eraxydpc.exe /d"C:\Users\Admin\AppData\Local\Temp\fde1678345d5c44d4d4850402fad1ea7b0d509652258ae34cb98b0b234e64309.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- 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:2800

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\eraxydpc.exe

Filesize
13.4MB

MD5
6677db6b68c2d7b9a28e26c176fc5a66

SHA1
9c9865779580505590c451f7ec101b3a0692206a

SHA256
7f2a78ce99c696332347532baf204983ea8841ca78dc760f2171dd0c65cab4bd

SHA512
db3491cd39d197636d4231bb734ba6c5c2c279b0d21feef7e67dee950adf4ce1466124577421df27bb05149083b598d2e0453351677cdb0da7dd07441e3674d2

Download Submit
memory/1712-8-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download
memory/1712-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1712-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1712-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1712-1-0x0000000002E80000-0x0000000002F80000-memory.dmp

Filesize
1024KB

Download
memory/2800-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-16-0x0000000000400000-0x0000000002DA4000-memory.dmp

Filesize
41.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads