tofsee | 8dada8550c69139e50dcdf23aac63902b63fc35e4092ad10aa125dad7833b245

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 11:49

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General

Target

a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe
Size

11.0MB
MD5

a7b5afb958e1f5a5aa8a89fcffd4e2bb
SHA1

a581eaa933ebd023e48f9633257a1099e0085bdf
SHA256

8dada8550c69139e50dcdf23aac63902b63fc35e4092ad10aa125dad7833b245
SHA512

a20f40a6c1794eb4736956ecc62d69ff279aad472f229147b983f666c21a84ff9561e4b790b221d9a80a0dfc586d11a767ad68e68cff3305d346ec0da5a8d64d
SSDEEP

196608:SkNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNd:S

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\uchvpnzq = "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
2604	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\uchvpnzq\ImagePath = "C:\\Windows\\SysWOW64\\uchvpnzq\\dvaahztx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2996	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2688	dvaahztx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 2996	2688	dvaahztx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2572	sc.exe
1036	sc.exe
2584	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	dvaahztx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7b5afb958e1f5a5aa8a89fcffd4e2bb_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	netsh.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 2432 wrote to memory of 2700	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2700	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2700	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2700	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	30
PID 2432 wrote to memory of 2776	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2776	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2776	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 2776	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	32
PID 2432 wrote to memory of 1036	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	34
PID 2432 wrote to memory of 1036	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	34
PID 2432 wrote to memory of 1036	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	34
PID 2432 wrote to memory of 1036	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	34
PID 2432 wrote to memory of 2584	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	36
PID 2432 wrote to memory of 2584	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	36
PID 2432 wrote to memory of 2584	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	36
PID 2432 wrote to memory of 2584	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	36
PID 2432 wrote to memory of 2572	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	38
PID 2432 wrote to memory of 2572	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	38
PID 2432 wrote to memory of 2572	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	38
PID 2432 wrote to memory of 2572	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	38
PID 2432 wrote to memory of 2604	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	41
PID 2432 wrote to memory of 2604	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	41
PID 2432 wrote to memory of 2604	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	41
PID 2432 wrote to memory of 2604	2432	a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe	41
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43
PID 2688 wrote to memory of 2996	2688	dvaahztx.exe	43

C:\Users\Admin\AppData\Local\Temp\a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uchvpnzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dvaahztx.exe" C:\Windows\SysWOW64\uchvpnzq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uchvpnzq binPath= "C:\Windows\SysWOW64\uchvpnzq\dvaahztx.exe /d\"C:\Users\Admin\AppData\Local\Temp\a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uchvpnzq "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 uchvpnzq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- 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:2604

C:\Windows\SysWOW64\uchvpnzq\dvaahztx.exe
C:\Windows\SysWOW64\uchvpnzq\dvaahztx.exe /d"C:\Users\Admin\AppData\Local\Temp\a7b5afb958e1f5a5aa8a89fcffd4e2bb_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2688
- 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:2996

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\dvaahztx.exe

Filesize
11.7MB

MD5
7ddaa8ce891869e8dd60d05ce5e5b062

SHA1
1660dd48122294d0cac2c0722302595369b087b4

SHA256
fb671eb66c52d9779d1f7b84aba1f0270d039d23f61cdefe3e935cb10739eba3

SHA512
b6aa4f0032b8d8ff0c10585d64e33b384722af3ea22f1c7b5a7f5a4ab6249015ae11b3f067c93d5e68433a5802135fdf2b0989e35b5fc3d5fc8a4122d6d593fa

Download Submit
memory/2432-8-0x0000000000400000-0x0000000002C6C000-memory.dmp

Filesize
40.4MB

Download
memory/2432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2432-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2432-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

Filesize
1024KB

Download
memory/2688-16-0x0000000000400000-0x0000000002C6C000-memory.dmp

Filesize
40.4MB

Download
memory/2996-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2996-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2996-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads