tofsee | acf8b2bcf6af380afd0b9f930bd707b342fde61b5fea32f79e4966a800fd7f50

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 06:27

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General

Target

c659128a51feccbe01152e15254d507e_JaffaCakes118.exe
Size

15.0MB
MD5

c659128a51feccbe01152e15254d507e
SHA1

917d99d4552a05870e9358e0de7053b3ba3e9482
SHA256

acf8b2bcf6af380afd0b9f930bd707b342fde61b5fea32f79e4966a800fd7f50
SHA512

172a9dacb46175d56a6d480329246d8e16fd742f83efff9b5927894b2a0bc34b800dc70392ddca906e3eca184669f4874a7f9bd854871e870e50315869b15257
SSDEEP

1536:oijD738OroNKoBBDGqprbJD9RU/VHmubHMFaGkrESk8T9jKGtdvdmG:oij33broxDLVk/Nm7rSXBKGT

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\wsevlupo = "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
2348	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\wsevlupo\ImagePath = "C:\\Windows\\SysWOW64\\wsevlupo\\anbegger.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2624	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2552	anbegger.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 2624	2552	anbegger.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
2840	sc.exe
1992	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c659128a51feccbe01152e15254d507e_JaffaCakes118.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	anbegger.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2676 wrote to memory of 2948	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2948	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2948	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2948	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	30
PID 2676 wrote to memory of 2796	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2796	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2796	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2796	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	32
PID 2676 wrote to memory of 2836	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2836	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2836	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2836	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	34
PID 2676 wrote to memory of 2840	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2840	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2840	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	36
PID 2676 wrote to memory of 2840	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	36
PID 2676 wrote to memory of 1992	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	38
PID 2676 wrote to memory of 1992	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	38
PID 2676 wrote to memory of 1992	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	38
PID 2676 wrote to memory of 1992	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	38
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2552 wrote to memory of 2624	2552	anbegger.exe	41
PID 2676 wrote to memory of 2348	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	42
PID 2676 wrote to memory of 2348	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	42
PID 2676 wrote to memory of 2348	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	42
PID 2676 wrote to memory of 2348	2676	c659128a51feccbe01152e15254d507e_JaffaCakes118.exe	42

C:\Users\Admin\AppData\Local\Temp\c659128a51feccbe01152e15254d507e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c659128a51feccbe01152e15254d507e_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wsevlupo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\anbegger.exe" C:\Windows\SysWOW64\wsevlupo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wsevlupo binPath= "C:\Windows\SysWOW64\wsevlupo\anbegger.exe /d\"C:\Users\Admin\AppData\Local\Temp\c659128a51feccbe01152e15254d507e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wsevlupo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wsevlupo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1992
- 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:2348

C:\Windows\SysWOW64\wsevlupo\anbegger.exe
C:\Windows\SysWOW64\wsevlupo\anbegger.exe /d"C:\Users\Admin\AppData\Local\Temp\c659128a51feccbe01152e15254d507e_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:2624

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\anbegger.exe

Filesize
14.0MB

MD5
b62ad9ec7924da606772017d39cc27a4

SHA1
0fd1d6870e98a3b9607294bdf69faf3c1b3fbb5d

SHA256
be71d82d7690bc1efbfd87d1c46501de850290b3bcb9399fc8dbfc5beba141e4

SHA512
032d2bc874aa5b3871ff71da16f450e268122a95b26262d2f080110c63bada1ce451eb2a58cb4a31d4e76bca95c8c5d284508435fb1cefdebb1d28bec2fe5fc8

Download Submit
memory/2552-12-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2624-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2624-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2624-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2624-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2676-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2676-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2676-0-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/2676-13-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads