tofsee | 3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4

Analysis

max time kernel
147s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 18:35

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General

Target

JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe
Size

10.9MB
MD5

2f0b4b4819d48ff7ba4dbeb258a93189
SHA1

98067909fa21b0bf107449206405ac8b13e5c776
SHA256

3a115fc118d5b0933c8550da6125b78d4956e27f671c00945d0ad04d5839dab4
SHA512

090e957459548ed42424f07cb387664bff76d0efcc5b36943339b909290696496738c0b4586f446df4f6c0f1aa4faccb6ad66aab404a8775e7146491b4cd16e1
SSDEEP

6144:HLmhaXrxJHCx7HdqAT7mvs/bNAk3B79NmVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV1:HLmhaXrxJHuHdPT1n9N

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\wgutckcu = "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
2600	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\wgutckcu\ImagePath = "C:\\Windows\\SysWOW64\\wgutckcu\\auqwhrjp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	auqwhrjp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2540	2712	auqwhrjp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2892	sc.exe
2980	sc.exe
2764	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	auqwhrjp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2808	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	30
PID 2096 wrote to memory of 2808	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	30
PID 2096 wrote to memory of 2808	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	30
PID 2096 wrote to memory of 2808	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	30
PID 2096 wrote to memory of 3040	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	32
PID 2096 wrote to memory of 3040	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	32
PID 2096 wrote to memory of 3040	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	32
PID 2096 wrote to memory of 3040	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	32
PID 2096 wrote to memory of 2892	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	34
PID 2096 wrote to memory of 2892	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	34
PID 2096 wrote to memory of 2892	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	34
PID 2096 wrote to memory of 2892	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	34
PID 2096 wrote to memory of 2980	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	36
PID 2096 wrote to memory of 2980	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	36
PID 2096 wrote to memory of 2980	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	36
PID 2096 wrote to memory of 2980	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	36
PID 2096 wrote to memory of 2764	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	38
PID 2096 wrote to memory of 2764	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	38
PID 2096 wrote to memory of 2764	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	38
PID 2096 wrote to memory of 2764	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	38
PID 2096 wrote to memory of 2600	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	41
PID 2096 wrote to memory of 2600	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	41
PID 2096 wrote to memory of 2600	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	41
PID 2096 wrote to memory of 2600	2096	JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe	41
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43
PID 2712 wrote to memory of 2540	2712	auqwhrjp.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wgutckcu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\auqwhrjp.exe" C:\Windows\SysWOW64\wgutckcu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3040
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wgutckcu binPath= "C:\Windows\SysWOW64\wgutckcu\auqwhrjp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wgutckcu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wgutckcu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- 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:2600

C:\Windows\SysWOW64\wgutckcu\auqwhrjp.exe
C:\Windows\SysWOW64\wgutckcu\auqwhrjp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f0b4b4819d48ff7ba4dbeb258a93189.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2540

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\auqwhrjp.exe

Filesize
11.9MB

MD5
28f561fc88f191a0de82b0e4ba29dcc7

SHA1
1c9de33f300e299daad6c185d5c02e84ead58efd

SHA256
a068dcef0935b5e6720c29b8fd1c8d3a16ded47074fa8eaab0ce0b58cf3e2ac7

SHA512
26b0578bbd831efbf0dd50f517a1f8a5f4e860bd50f21020ec1f5a31d1404f45f4c2516fc6ba6a0bf45c1d70cdec8b13d15a0e4aac0ac22554a2eddf52398b30

Download Submit
memory/2096-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp

Filesize
1024KB

Download
memory/2096-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-4-0x0000000000400000-0x0000000000878000-memory.dmp

Filesize
4.5MB

Download
memory/2096-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2096-9-0x0000000000400000-0x0000000000878000-memory.dmp

Filesize
4.5MB

Download
memory/2540-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2540-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2540-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2712-15-0x0000000000400000-0x0000000000878000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads