tofsee | ab7c17380f2715ab57dc012b1ce4a7e72364cf218623fe7a3075fd6fbffc3666

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 01:03

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General

Target

f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe
Size

12.4MB
MD5

f6920b77443255c092bbf9df3f1d4451
SHA1

670f15293c4a9ad62a043f0506a9cf4cadc67090
SHA256

ab7c17380f2715ab57dc012b1ce4a7e72364cf218623fe7a3075fd6fbffc3666
SHA512

974b99cfde0eec0c71564db6fcd7d3ace305ac90bc1f1b9f9082afcbd848cd58e9f5c62e3246de0951bc2320742a7837fa21d11b9accde357609341f33387aaf
SSDEEP

393216:d888888888888888888888888888888888888888888888888888888888888883:

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\tvpbhsnm = "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\tvpbhsnm\ImagePath = "C:\\Windows\\SysWOW64\\tvpbhsnm\\tjjjypvn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2344	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2724	tjjjypvn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2344	2724	tjjjypvn.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2192	sc.exe
2820	sc.exe
2940	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	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.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	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	tjjjypvn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2108	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2108	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2108	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2108	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	30
PID 2932 wrote to memory of 2920	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2920	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2920	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2920	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	32
PID 2932 wrote to memory of 2820	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2820	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2820	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2820	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	34
PID 2932 wrote to memory of 2940	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2940	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2940	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2940	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	36
PID 2932 wrote to memory of 2192	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	38
PID 2932 wrote to memory of 2192	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	38
PID 2932 wrote to memory of 2192	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	38
PID 2932 wrote to memory of 2192	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	38
PID 2932 wrote to memory of 2744	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	41
PID 2932 wrote to memory of 2744	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	41
PID 2932 wrote to memory of 2744	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	41
PID 2932 wrote to memory of 2744	2932	f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe	41
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43
PID 2724 wrote to memory of 2344	2724	tjjjypvn.exe	43

C:\Users\Admin\AppData\Local\Temp\f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tvpbhsnm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tjjjypvn.exe" C:\Windows\SysWOW64\tvpbhsnm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tvpbhsnm binPath= "C:\Windows\SysWOW64\tvpbhsnm\tjjjypvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tvpbhsnm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tvpbhsnm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2192
- 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\tvpbhsnm\tjjjypvn.exe
C:\Windows\SysWOW64\tvpbhsnm\tjjjypvn.exe /d"C:\Users\Admin\AppData\Local\Temp\f6920b77443255c092bbf9df3f1d4451_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- 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:2344

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\tjjjypvn.exe

Filesize
10.3MB

MD5
c2e3ef12390c678034c8ad30ad3809b1

SHA1
9010b3fb721251f94ac0193719ab671ec549a169

SHA256
f1df3b72aaa1080467d510c658878e057b465d68ceff4193c9c7ff7cc40b0e7b

SHA512
a91c193915d120366a190ca2ee2219c980e115601f20c0e2c38207173eb090a804ac0752b6b4021a812e6c50cd67cb4c46278c45a2fd7f80af0200a001ae5b01

Download Submit
memory/2344-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2344-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2344-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2344-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2344-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2932-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2932-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2932-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2932-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2932-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2932-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads