tofsee | b02cf0f673dc10cbbfff3f277c2276aeb6b35582adfda30067e558e6f645aa47

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 08:08

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General

Target

JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe
Size

12.9MB
MD5

573a11410343b2658d1db7646acc75c9
SHA1

1246e32ff4fe1533154937310692f0e8bce0e29d
SHA256

b02cf0f673dc10cbbfff3f277c2276aeb6b35582adfda30067e558e6f645aa47
SHA512

2f233a03cf667a1c4b3e7aa2d78594f68f430bddf0fcaac5dacef484452707bc7802802141bfd9cc96ca2380d9ad1ea3c9389960074c74ceb62dd1f33236f4c8
SSDEEP

49152:ukHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH:

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\bpohmzyo = "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
2940	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\bpohmzyo\ImagePath = "C:\\Windows\\SysWOW64\\bpohmzyo\\afecsyhw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	afecsyhw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2636	2756	afecsyhw.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2340	sc.exe
1852	sc.exe
2896	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	svchost.exe
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	afecsyhw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2376	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	30
PID 2180 wrote to memory of 2376	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	30
PID 2180 wrote to memory of 2376	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	30
PID 2180 wrote to memory of 2376	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	30
PID 2180 wrote to memory of 1716	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	32
PID 2180 wrote to memory of 1716	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	32
PID 2180 wrote to memory of 1716	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	32
PID 2180 wrote to memory of 1716	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	32
PID 2180 wrote to memory of 2340	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	34
PID 2180 wrote to memory of 2340	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	34
PID 2180 wrote to memory of 2340	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	34
PID 2180 wrote to memory of 2340	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	34
PID 2180 wrote to memory of 1852	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	36
PID 2180 wrote to memory of 1852	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	36
PID 2180 wrote to memory of 1852	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	36
PID 2180 wrote to memory of 1852	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	36
PID 2180 wrote to memory of 2896	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	38
PID 2180 wrote to memory of 2896	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	38
PID 2180 wrote to memory of 2896	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	38
PID 2180 wrote to memory of 2896	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	38
PID 2180 wrote to memory of 2940	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	41
PID 2180 wrote to memory of 2940	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	41
PID 2180 wrote to memory of 2940	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	41
PID 2180 wrote to memory of 2940	2180	JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe	41
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43
PID 2756 wrote to memory of 2636	2756	afecsyhw.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bpohmzyo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\afecsyhw.exe" C:\Windows\SysWOW64\bpohmzyo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bpohmzyo binPath= "C:\Windows\SysWOW64\bpohmzyo\afecsyhw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bpohmzyo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bpohmzyo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- 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:2940

C:\Windows\SysWOW64\bpohmzyo\afecsyhw.exe
C:\Windows\SysWOW64\bpohmzyo\afecsyhw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_573a11410343b2658d1db7646acc75c9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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:2636

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\afecsyhw.exe

Filesize
10.4MB

MD5
ede9fa16c58cbfabab19ad44c1ea607d

SHA1
aa70849e67123b1227b54bc348fba16a02643bdd

SHA256
c98231b778e6cf69b9ef5dceeaa672049844d02b28162165371b1e8547747c3a

SHA512
7dda39c2479e2041e4548163f7f6c847be9cbfec93933ad519da724048bb6c84d2af117dc8222b9a8c84533a498597260a57539057d62f28f9492275acc0dcb7

Download Submit
memory/2180-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2180-1-0x00000000008B0000-0x00000000009B0000-memory.dmp

Filesize
1024KB

Download
memory/2180-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/2180-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2180-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2636-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads