tofsee | 8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 14:34

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General

Target

JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe
Size

228KB
MD5

0a17fcdde1f0e57409464572f985e475
SHA1

2db334310c654e9718285a77b2eefb8d322cf57b
SHA256

8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9
SHA512

7781c450c1070fdb8084bf816a7f6f17e9ee117ae6c3d677509f6e4a7ea32c3578053f165b35b7c01900278279d8551a4a3ca4559c389036cefc3fa968c2b59d
SSDEEP

3072:PFSW5Ha6XLb/ts7j6yVehikJwu9nO0SXL7yl17EgTMfulAS/o27Lo4rDgJQ:PFSeH9jts7jfeLJwut5DblSogq

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\synudzdm = "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
2776	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\synudzdm\ImagePath = "C:\\Windows\\SysWOW64\\synudzdm\\jmfnlnvf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	jmfnlnvf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2700	2716	jmfnlnvf.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2024	sc.exe
2500	sc.exe
2292	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jmfnlnvf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.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	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 2372 wrote to memory of 2652	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	30
PID 2372 wrote to memory of 2652	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	30
PID 2372 wrote to memory of 2652	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	30
PID 2372 wrote to memory of 2652	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	30
PID 2372 wrote to memory of 2480	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	32
PID 2372 wrote to memory of 2480	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	32
PID 2372 wrote to memory of 2480	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	32
PID 2372 wrote to memory of 2480	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	32
PID 2372 wrote to memory of 2024	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	34
PID 2372 wrote to memory of 2024	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	34
PID 2372 wrote to memory of 2024	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	34
PID 2372 wrote to memory of 2024	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	34
PID 2372 wrote to memory of 2500	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	36
PID 2372 wrote to memory of 2500	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	36
PID 2372 wrote to memory of 2500	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	36
PID 2372 wrote to memory of 2500	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	36
PID 2372 wrote to memory of 2292	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	38
PID 2372 wrote to memory of 2292	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	38
PID 2372 wrote to memory of 2292	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	38
PID 2372 wrote to memory of 2292	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	38
PID 2372 wrote to memory of 2776	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	42
PID 2372 wrote to memory of 2776	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	42
PID 2372 wrote to memory of 2776	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	42
PID 2372 wrote to memory of 2776	2372	JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe	42
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44
PID 2716 wrote to memory of 2700	2716	jmfnlnvf.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\synudzdm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jmfnlnvf.exe" C:\Windows\SysWOW64\synudzdm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create synudzdm binPath= "C:\Windows\SysWOW64\synudzdm\jmfnlnvf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2024
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description synudzdm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start synudzdm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- 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:2776

C:\Windows\SysWOW64\synudzdm\jmfnlnvf.exe
C:\Windows\SysWOW64\synudzdm\jmfnlnvf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ae9b2067746677ec60b3895b7e5b4a6819f0e51080ce320b017af2dd037cea9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- 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:2700

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\jmfnlnvf.exe

Filesize
11.6MB

MD5
66ca86382c22bca3b5f7021c8849b22d

SHA1
767a3a7606614e2a32b686c81022f8bbba7a0547

SHA256
6c4f1fcb5ddd3de0c8c75409ef14c70805cfcf45c9735a0dc012518618e71061

SHA512
b0c89580daf6637dc2714321200646888f8537573e2fe2f9e2eaccf82e715145692c325807cfb16983653185035af03d3c1be54e17e3154a1a1d85dc183dd858

Download Submit
memory/2372-8-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download
memory/2372-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2372-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2372-1-0x0000000000A40000-0x0000000000B40000-memory.dmp

Filesize
1024KB

Download
memory/2700-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2700-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2700-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2700-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2716-17-0x0000000000400000-0x0000000000869000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads