tofsee | c00afb3d9875303bb1ca957e8ef8b5f1d086a614fb9d16d91f4a21fe13189145

Analysis

max time kernel
144s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/01/2025, 22:05

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General

Target

JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe
Size

11.3MB
MD5

bff20a936e3bc424b95a2eee2989f0dc
SHA1

a6844a289cc3be0c8d6859006066deec2c67d80a
SHA256

c00afb3d9875303bb1ca957e8ef8b5f1d086a614fb9d16d91f4a21fe13189145
SHA512

470e3e5d3def60222b629c94ec543ecfbfe30948fc488a3869bbbadd50c7da81ba24057c10a1911e02c86a346a754671f272309db5022e12a707d56f073be0b2
SSDEEP

6144:09ee3eUmeaedGxyF1t9cj9lxbxaMPaMfh4EfzowLG7:0Ie6TSsyF+jdxacX6kzo4O

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\jovhanjh = "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
2724	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\jovhanjh\ImagePath = "C:\\Windows\\SysWOW64\\jovhanjh\\ugsaalai.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2280	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	ugsaalai.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 2280	2620	ugsaalai.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2744	sc.exe
2528	sc.exe
2552	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_bff20a936e3bc424b95a2eee2989f0dc.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	ugsaalai.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2844	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	31
PID 2800 wrote to memory of 2844	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	31
PID 2800 wrote to memory of 2844	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	31
PID 2800 wrote to memory of 2844	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	31
PID 2800 wrote to memory of 2716	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	33
PID 2800 wrote to memory of 2716	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	33
PID 2800 wrote to memory of 2716	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	33
PID 2800 wrote to memory of 2716	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	33
PID 2800 wrote to memory of 2744	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	35
PID 2800 wrote to memory of 2744	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	35
PID 2800 wrote to memory of 2744	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	35
PID 2800 wrote to memory of 2744	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	35
PID 2800 wrote to memory of 2528	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	37
PID 2800 wrote to memory of 2528	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	37
PID 2800 wrote to memory of 2528	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	37
PID 2800 wrote to memory of 2528	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	37
PID 2800 wrote to memory of 2552	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	39
PID 2800 wrote to memory of 2552	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	39
PID 2800 wrote to memory of 2552	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	39
PID 2800 wrote to memory of 2552	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	39
PID 2800 wrote to memory of 2724	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	42
PID 2800 wrote to memory of 2724	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	42
PID 2800 wrote to memory of 2724	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	42
PID 2800 wrote to memory of 2724	2800	JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe	42
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44
PID 2620 wrote to memory of 2280	2620	ugsaalai.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jovhanjh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ugsaalai.exe" C:\Windows\SysWOW64\jovhanjh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jovhanjh binPath= "C:\Windows\SysWOW64\jovhanjh\ugsaalai.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jovhanjh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jovhanjh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2552
- 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:2724

C:\Windows\SysWOW64\jovhanjh\ugsaalai.exe
C:\Windows\SysWOW64\jovhanjh\ugsaalai.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bff20a936e3bc424b95a2eee2989f0dc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- 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:2280

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\ugsaalai.exe

Filesize
10.4MB

MD5
6d8084fd27df7eb87fc2d081db8d9afa

SHA1
81c861fe67679329f6022ab9cdd6dded0c146a8e

SHA256
a3011c4eee4f9c5808a7b0d3d1bd7f6777fa1e8bb064b4c7f87d75aa801e7dc3

SHA512
e0751f8e4925a68860bbe3a3125803f7ac5cfa5fd20a4bfac49e467ae41b359408a9e51c81827a7ec6b7922ba8e0e236114f680b85c9fe77c8ff523261d3058d

Download Submit
memory/2280-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2280-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2280-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2280-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2280-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2620-17-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2800-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2800-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2800-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2800-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2800-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2800-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads