tofsee | e91b0a17ead2c83c4fae8dbf4afbd30afce8d7686b5f2ed1c0790b166878e2d2

Resubmissions

27-10-2024 23:54

241027-3x742svhmh 10

27-10-2024 23:30

241027-3g5nzssnbr 10

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
27-10-2024 23:54

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General

Target

768226535e8829a6a546849b0face680_JaffaCakes118.exe
Size

12.9MB
MD5

768226535e8829a6a546849b0face680
SHA1

e212fc31a3ba718726c487d9a29adfe828cc95fa
SHA256

e91b0a17ead2c83c4fae8dbf4afbd30afce8d7686b5f2ed1c0790b166878e2d2
SHA512

b4bb4c569e25d7ee19cba60a3b62ff632107dfdeb4b2e2af6816f8fd55a43167bf6082d8491d2338ecb1257f2c48ff3511211cfec807935560a7d666e90fb12a
SSDEEP

12288:PZlC6v/5oQU6buXH53333333333333333333333333333333333333333333333X:PbjvluXH

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\abmopaus = "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
2452	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\abmopaus\ImagePath = "C:\\Windows\\SysWOW64\\abmopaus\\rywhmhvj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	rywhmhvj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2708	2820	rywhmhvj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2904	sc.exe
2760	sc.exe
2836	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	768226535e8829a6a546849b0face680_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	rywhmhvj.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 784	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	30
PID 2380 wrote to memory of 784	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	30
PID 2380 wrote to memory of 784	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	30
PID 2380 wrote to memory of 784	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	30
PID 2380 wrote to memory of 2304	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2304	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2304	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2304	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	32
PID 2380 wrote to memory of 2904	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	34
PID 2380 wrote to memory of 2904	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	34
PID 2380 wrote to memory of 2904	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	34
PID 2380 wrote to memory of 2904	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	34
PID 2380 wrote to memory of 2760	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	36
PID 2380 wrote to memory of 2760	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	36
PID 2380 wrote to memory of 2760	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	36
PID 2380 wrote to memory of 2760	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	36
PID 2380 wrote to memory of 2836	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	38
PID 2380 wrote to memory of 2836	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	38
PID 2380 wrote to memory of 2836	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	38
PID 2380 wrote to memory of 2836	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	38
PID 2380 wrote to memory of 2452	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	41
PID 2380 wrote to memory of 2452	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	41
PID 2380 wrote to memory of 2452	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	41
PID 2380 wrote to memory of 2452	2380	768226535e8829a6a546849b0face680_JaffaCakes118.exe	41
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43
PID 2820 wrote to memory of 2708	2820	rywhmhvj.exe	43

C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\abmopaus\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rywhmhvj.exe" C:\Windows\SysWOW64\abmopaus\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create abmopaus binPath= "C:\Windows\SysWOW64\abmopaus\rywhmhvj.exe /d\"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description abmopaus "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start abmopaus
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- 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:2452

C:\Windows\SysWOW64\abmopaus\rywhmhvj.exe
C:\Windows\SysWOW64\abmopaus\rywhmhvj.exe /d"C:\Users\Admin\AppData\Local\Temp\768226535e8829a6a546849b0face680_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2708

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\rywhmhvj.exe

Filesize
10.8MB

MD5
1c2b8c917fce509c75afeb21f2456673

SHA1
5a1433711df0b4d0d6b98cb152521aa8a8429b86

SHA256
2695698153744909b317334ceaca9274082d6d77c430982dcb4c33f891ccbe81

SHA512
36a61f8099800d383979fd8ca64d0b4b5ae315508719206362fbd66c710ea9c49bf88a9580f64e4ffa388b7288dedc5044adf272be95425d385a2aca30b81e63

Download Submit
memory/2380-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2380-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2380-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/2708-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2708-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2708-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads