tofsee | 3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 00:52

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General

Target

JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe
Size

281KB
MD5

2840d22a020bc638ed748b3c1358e0fe
SHA1

cc3aa1f4f2bedb979c5d1f94b3cbcce3eead5bc8
SHA256

3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55
SHA512

c5987b6b3454ac5a17fca6df1246b9678d9c387aabd422827d2d7cd95bc6a3ae33b9743f7ef9f8a78ae07c1e07650e3911ce0aaf4a05a3a978e3e55ac90a7898
SSDEEP

6144:aozHI8/57wH+3eTnl7QQriROhxxpeTr/ekI:3HP/57wH+urlcQrXzxp6L

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\olhbwhig = "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
2940	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\olhbwhig\ImagePath = "C:\\Windows\\SysWOW64\\olhbwhig\\eqxrwcpx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2972	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2868	eqxrwcpx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 2972	2868	eqxrwcpx.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2876	sc.exe
1192	sc.exe
2772	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	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.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	eqxrwcpx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 2168	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	29
PID 2608 wrote to memory of 2168	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	29
PID 2608 wrote to memory of 2168	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	29
PID 2608 wrote to memory of 2168	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	29
PID 2608 wrote to memory of 1216	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	31
PID 2608 wrote to memory of 1216	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	31
PID 2608 wrote to memory of 1216	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	31
PID 2608 wrote to memory of 1216	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	31
PID 2608 wrote to memory of 1192	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	33
PID 2608 wrote to memory of 1192	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	33
PID 2608 wrote to memory of 1192	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	33
PID 2608 wrote to memory of 1192	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	33
PID 2608 wrote to memory of 2772	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	35
PID 2608 wrote to memory of 2772	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	35
PID 2608 wrote to memory of 2772	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	35
PID 2608 wrote to memory of 2772	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	35
PID 2608 wrote to memory of 2876	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	37
PID 2608 wrote to memory of 2876	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	37
PID 2608 wrote to memory of 2876	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	37
PID 2608 wrote to memory of 2876	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	37
PID 2608 wrote to memory of 2940	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	40
PID 2608 wrote to memory of 2940	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	40
PID 2608 wrote to memory of 2940	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	40
PID 2608 wrote to memory of 2940	2608	JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe	40
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42
PID 2868 wrote to memory of 2972	2868	eqxrwcpx.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\olhbwhig\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eqxrwcpx.exe" C:\Windows\SysWOW64\olhbwhig\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create olhbwhig binPath= "C:\Windows\SysWOW64\olhbwhig\eqxrwcpx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description olhbwhig "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start olhbwhig
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2940

C:\Windows\SysWOW64\olhbwhig\eqxrwcpx.exe
C:\Windows\SysWOW64\olhbwhig\eqxrwcpx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c520498147ae370021f45ec0b819740a38d19437efd990cfb529a9a02210a55.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- 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:2972

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\eqxrwcpx.exe

Filesize
12.5MB

MD5
c37d5b77f028475312c3d1d6db238e8c

SHA1
72e1fba1e9d5350dcaad2be3a86a6c668b2cb581

SHA256
ccc72fbe7b5c83293c5adcc5d0c1d16b2c190d992510733a9374a0c26d7d2788

SHA512
4cabcba22fc55cdf054c85610c73271f90ffffcd9b55ab93c40f82f745056263a7906fa40f34be034ed7b81afbda172c70764e95408fa5584ba1bff69488fdb6

Download Submit
memory/2608-8-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2608-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2608-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/2608-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2608-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2608-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2868-17-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2972-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2972-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2972-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2972-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads