tofsee | caa453134185027742560d6e155b609fda7072e1418dcb815ad3b72e688fd818

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 17:37

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General

Target

JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe
Size

13.6MB
MD5

7065a2071418085cb5ee25da958c0373
SHA1

b1ebe8f969ae2b74c7e4a8f8425b40405aa9fe69
SHA256

caa453134185027742560d6e155b609fda7072e1418dcb815ad3b72e688fd818
SHA512

d2b87b104b020277e1c06cb08323a147b07ba7cc617a9087ac60bd3e0e82f62b6c0dd88876cbde8a11b5a1a83660ddce66daa667c95ccaf0e7f0c63f6082844c
SSDEEP

3072:L0dYxvqagQYPbb1gFlSLMU+++++++++++++++++++++++++++++++++++++++++3:4dYrYP1gjSI

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\phflgcsd = "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
2744	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\phflgcsd\ImagePath = "C:\\Windows\\SysWOW64\\phflgcsd\\owlpcajj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2988	owlpcajj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2988 set thread context of 2828	2988	owlpcajj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2184	sc.exe
2584	sc.exe
2852	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	owlpcajj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2076 wrote to memory of 2440	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	30
PID 2076 wrote to memory of 2440	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	30
PID 2076 wrote to memory of 2440	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	30
PID 2076 wrote to memory of 2440	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	30
PID 2076 wrote to memory of 2720	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	32
PID 2076 wrote to memory of 2720	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	32
PID 2076 wrote to memory of 2720	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	32
PID 2076 wrote to memory of 2720	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	32
PID 2076 wrote to memory of 2184	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	34
PID 2076 wrote to memory of 2184	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	34
PID 2076 wrote to memory of 2184	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	34
PID 2076 wrote to memory of 2184	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	34
PID 2076 wrote to memory of 2584	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	37
PID 2076 wrote to memory of 2584	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	37
PID 2076 wrote to memory of 2584	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	37
PID 2076 wrote to memory of 2584	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	37
PID 2076 wrote to memory of 2852	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	39
PID 2076 wrote to memory of 2852	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	39
PID 2076 wrote to memory of 2852	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	39
PID 2076 wrote to memory of 2852	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	39
PID 2076 wrote to memory of 2744	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	42
PID 2076 wrote to memory of 2744	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	42
PID 2076 wrote to memory of 2744	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	42
PID 2076 wrote to memory of 2744	2076	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	42
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44
PID 2988 wrote to memory of 2828	2988	owlpcajj.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\phflgcsd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\owlpcajj.exe" C:\Windows\SysWOW64\phflgcsd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create phflgcsd binPath= "C:\Windows\SysWOW64\phflgcsd\owlpcajj.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description phflgcsd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2584
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start phflgcsd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- 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:2744

C:\Windows\SysWOW64\phflgcsd\owlpcajj.exe
C:\Windows\SysWOW64\phflgcsd\owlpcajj.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- 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

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Downloads

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

Filesize
11.0MB

MD5
31c366abb3b91a7537c457169a8567e6

SHA1
b59616bac99c7048e95639b6a9abb84e0a4fcd90

SHA256
87c6abadd961687b18f69efa4a59352ae8aa6387b788f7f038d24c4b3e41dc16

SHA512
b59565db3b12d568ae461918c92aa99b5aed87bf9b4bca0ed7bcd12b84c313e627b3cc3e0359c762a8acd380f8fff967147fefae964e14b2771d3499369958b8

Download Submit
memory/2076-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/2076-3-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2076-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2076-8-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2828-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

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

Filesize
4KB

Download
memory/2828-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2988-15-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads