tofsee | 07806de6097678888d093bb67843be36c53f8c88af87e78ba3b936aca6b79e74

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 22:48

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General

Target

9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe
Size

10.9MB
MD5

9119f2bf0f3d575dce916735bfee6d40
SHA1

3df2a3dbea0fac124dcc12c51adab22e90587717
SHA256

07806de6097678888d093bb67843be36c53f8c88af87e78ba3b936aca6b79e74
SHA512

b7030e213cdeac5945da8f2bc5cd3ddb6b4b6bd244b07540cbe78ce7545e5630e1e554cabdad5f63ff752e8e6994367c35de1411fcdc2b8a40b789fa9122f1d0
SSDEEP

49152:XwAKFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFV:Xw

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\lflrndsf = "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
2580	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\lflrndsf\ImagePath = "C:\\Windows\\SysWOW64\\lflrndsf\\rhhhwntl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2560	rhhhwntl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 2888	2560	rhhhwntl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2588	sc.exe
2676	sc.exe
840	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.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	rhhhwntl.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2788	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2788	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2788	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	30
PID 2704 wrote to memory of 2788	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	30
PID 2704 wrote to memory of 1508	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	32
PID 2704 wrote to memory of 1508	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	32
PID 2704 wrote to memory of 1508	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	32
PID 2704 wrote to memory of 1508	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	32
PID 2704 wrote to memory of 840	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	34
PID 2704 wrote to memory of 840	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	34
PID 2704 wrote to memory of 840	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	34
PID 2704 wrote to memory of 840	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	34
PID 2704 wrote to memory of 2588	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2588	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2588	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2588	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	36
PID 2704 wrote to memory of 2676	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2676	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	38
PID 2704 wrote to memory of 2580	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	41
PID 2704 wrote to memory of 2580	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	41
PID 2704 wrote to memory of 2580	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	41
PID 2704 wrote to memory of 2580	2704	9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe	41
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43
PID 2560 wrote to memory of 2888	2560	rhhhwntl.exe	43

C:\Users\Admin\AppData\Local\Temp\9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lflrndsf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rhhhwntl.exe" C:\Windows\SysWOW64\lflrndsf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lflrndsf binPath= "C:\Windows\SysWOW64\lflrndsf\rhhhwntl.exe /d\"C:\Users\Admin\AppData\Local\Temp\9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lflrndsf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lflrndsf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:2580

C:\Windows\SysWOW64\lflrndsf\rhhhwntl.exe
C:\Windows\SysWOW64\lflrndsf\rhhhwntl.exe /d"C:\Users\Admin\AppData\Local\Temp\9119f2bf0f3d575dce916735bfee6d40_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- 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:2888

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\rhhhwntl.exe

Filesize
11.4MB

MD5
260516967e704ff531bf91db2c2b3df4

SHA1
3ef096498c4c750e0f5ba69ad65b71a91f8b6441

SHA256
21f5565357cb901ce12a99caa85aab8a42e0c81517f9fbf78d5fcbdf086c510a

SHA512
8d661f20cb308484f457f0cfc84a56d7624494a1b52984249c4986d3f157c81376f8d0182162985b1b7538709ba2a77dbbe240ddf9747e3b3404817a05ab7731

Download Submit
memory/2560-14-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2704-2-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2704-3-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2704-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2888-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads