tofsee | 3a0c699dfd2818026b2685be853b6e4470501d8ea9c7126af16c6f3c62e8ccd7

Analysis

max time kernel
148s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 20:24

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General

Target

JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe
Size

14.5MB
MD5

34c46c275c84f9c8aa05c3399a1ee9bc
SHA1

995251cca3838fb9a19ec7bdc2826e6b05dfa503
SHA256

3a0c699dfd2818026b2685be853b6e4470501d8ea9c7126af16c6f3c62e8ccd7
SHA512

a308a2dd4975dc2c41e8c8cb12af1a539b43997c150ebfb6fa0ef2e658127380c44c86b9e09878948730ecc4546f10957286de67251e45a876e003924d87ed3f
SSDEEP

3072:p0dYxvqagQYPbb1gFlSLMU+++++++++++++++++++++++++++++++++++++++++m:+dYrYP1gjSI

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\zrkshqco = "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
1256	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\zrkshqco\ImagePath = "C:\\Windows\\SysWOW64\\zrkshqco\\smmdoxoq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2608	smmdoxoq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2608 set thread context of 672	2608	smmdoxoq.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2832	sc.exe
2068	sc.exe
2680	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.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	smmdoxoq.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2788	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	30
PID 2652 wrote to memory of 2788	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	30
PID 2652 wrote to memory of 2788	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	30
PID 2652 wrote to memory of 2788	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	30
PID 2652 wrote to memory of 2968	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	32
PID 2652 wrote to memory of 2968	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	32
PID 2652 wrote to memory of 2968	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	32
PID 2652 wrote to memory of 2968	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	32
PID 2652 wrote to memory of 2680	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	34
PID 2652 wrote to memory of 2680	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	34
PID 2652 wrote to memory of 2680	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	34
PID 2652 wrote to memory of 2680	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	34
PID 2652 wrote to memory of 2832	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	36
PID 2652 wrote to memory of 2832	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	36
PID 2652 wrote to memory of 2832	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	36
PID 2652 wrote to memory of 2832	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	36
PID 2652 wrote to memory of 2068	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	38
PID 2652 wrote to memory of 2068	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	38
PID 2652 wrote to memory of 2068	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	38
PID 2652 wrote to memory of 2068	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	38
PID 2652 wrote to memory of 1256	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	41
PID 2652 wrote to memory of 1256	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	41
PID 2652 wrote to memory of 1256	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	41
PID 2652 wrote to memory of 1256	2652	JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe	41
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43
PID 2608 wrote to memory of 672	2608	smmdoxoq.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zrkshqco\
  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\smmdoxoq.exe" C:\Windows\SysWOW64\zrkshqco\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2968
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zrkshqco binPath= "C:\Windows\SysWOW64\zrkshqco\smmdoxoq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zrkshqco "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zrkshqco
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- 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:1256

C:\Windows\SysWOW64\zrkshqco\smmdoxoq.exe
C:\Windows\SysWOW64\zrkshqco\smmdoxoq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_34c46c275c84f9c8aa05c3399a1ee9bc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- 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:672

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\smmdoxoq.exe

Filesize
11.8MB

MD5
a6b956a111910b87fb0443291c0b17db

SHA1
5e7bba1bad740b0b7d63724641f20d63e8612151

SHA256
53936e79e6651a82e05c77d11e8f11e0c12091163e2820cc3af96db023baad05

SHA512
48f45710dc2341fb33487acb73fa5b575757eebc4259809004c52990496570da65e83a6a021d94a0c803df3cf347e3947fa0a9c7c97163199285ba90cab541df

Download Submit
memory/672-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/672-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/672-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/672-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/672-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2608-17-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2652-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2652-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2652-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2652-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2652-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads