tofsee | 963ab9d7bad967865b6abba6e970be5016ddf917238984a1a6fdc4e68d459358

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 17:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe
Size

13.9MB
MD5

31ccc97297cfafca0b922f0534f07167
SHA1

ebb2566ce3e3ea890fb952c0662b8804ade52f99
SHA256

963ab9d7bad967865b6abba6e970be5016ddf917238984a1a6fdc4e68d459358
SHA512

c2d8c81d7eafdd67967c594075c296f1269411ecfb0d94ab3755d8fb67d867d41fee6882a159375402461c0f38cad1d47c5e7963c4c78d5c63a53856af8c088b
SSDEEP

49152:1zPOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO:1

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\hvclhlgg = "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
2396	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\hvclhlgg\ImagePath = "C:\\Windows\\SysWOW64\\hvclhlgg\\unyozwpi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2916	unyozwpi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2916 set thread context of 2828	2916	unyozwpi.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2196	sc.exe
2748	sc.exe
2808	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	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	unyozwpi.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 1704	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	31
PID 2108 wrote to memory of 1704	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	31
PID 2108 wrote to memory of 1704	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	31
PID 2108 wrote to memory of 1704	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	31
PID 2108 wrote to memory of 1168	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	33
PID 2108 wrote to memory of 1168	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	33
PID 2108 wrote to memory of 1168	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	33
PID 2108 wrote to memory of 1168	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	33
PID 2108 wrote to memory of 2196	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	35
PID 2108 wrote to memory of 2196	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	35
PID 2108 wrote to memory of 2196	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	35
PID 2108 wrote to memory of 2196	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	35
PID 2108 wrote to memory of 2748	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	37
PID 2108 wrote to memory of 2748	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	37
PID 2108 wrote to memory of 2748	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	37
PID 2108 wrote to memory of 2748	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	37
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	39
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	39
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	39
PID 2108 wrote to memory of 2808	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	39
PID 2108 wrote to memory of 2396	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	42
PID 2108 wrote to memory of 2396	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	42
PID 2108 wrote to memory of 2396	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	42
PID 2108 wrote to memory of 2396	2108	JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe	42
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44
PID 2916 wrote to memory of 2828	2916	unyozwpi.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hvclhlgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\unyozwpi.exe" C:\Windows\SysWOW64\hvclhlgg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hvclhlgg binPath= "C:\Windows\SysWOW64\hvclhlgg\unyozwpi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hvclhlgg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hvclhlgg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- 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:2396

C:\Windows\SysWOW64\hvclhlgg\unyozwpi.exe
C:\Windows\SysWOW64\hvclhlgg\unyozwpi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31ccc97297cfafca0b922f0534f07167.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- 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:2828

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.3MB

MD5
247542538e110db82e8d679b491867c4

SHA1
26c58ce4637b0752d485bb977f01909e4e1a4d0f

SHA256
e3f06c5b5069499808bd5d0b0990f0e6c2bef780586e78021929721cf51eb6f2

SHA512
bf055f386002c226744a9f5db81b1fa4de340634d3559f480f63e49e43be1e79e3666573515f9a44790c41dc174117fb57379209192219fd4e235047ee9ba052

Download Submit
memory/2108-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2108-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2108-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2108-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2108-1-0x0000000001790000-0x0000000001890000-memory.dmp

Filesize
1024KB

Download
memory/2828-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2916-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads