tofsee | 16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324

Analysis

max time kernel
146s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 01:13

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General

Target

JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe
Size

137KB
MD5

c9141000c7976a8b5ede5e5f70da2646
SHA1

2c4256f6be785036cbea30814ac7f796e34e6135
SHA256

16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324
SHA512

7d78918dc943668378443da179c9e38142ce6278c51ca788855159d3aff8e21d9b3dc15236d09630ecd78d8504e3c9fe8def0999ef65fe0795c6790feafd1da2
SSDEEP

1536:cwKKkmoraPfPYCnL25/mWQujQcxnxK0wvnxYAPSk5icrRvd5I5/NcnUihEkUG0wu:3OAWVoUQcGf7Qi/I5/Ncj5U6kZ

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\funbteyc = "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
2784	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\funbteyc\ImagePath = "C:\\Windows\\SysWOW64\\funbteyc\\ovywxxnb.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2736	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2376	ovywxxnb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 2736	2376	ovywxxnb.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2948	sc.exe
2140	sc.exe
1980	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.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	ovywxxnb.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 268	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	28
PID 2868 wrote to memory of 268	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	28
PID 2868 wrote to memory of 268	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	28
PID 2868 wrote to memory of 268	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	28
PID 2868 wrote to memory of 2360	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	30
PID 2868 wrote to memory of 2360	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	30
PID 2868 wrote to memory of 2360	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	30
PID 2868 wrote to memory of 2360	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	30
PID 2868 wrote to memory of 2948	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	32
PID 2868 wrote to memory of 2948	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	32
PID 2868 wrote to memory of 2948	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	32
PID 2868 wrote to memory of 2948	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	32
PID 2868 wrote to memory of 2140	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	34
PID 2868 wrote to memory of 2140	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	34
PID 2868 wrote to memory of 2140	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	34
PID 2868 wrote to memory of 2140	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	34
PID 2868 wrote to memory of 1980	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	36
PID 2868 wrote to memory of 1980	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	36
PID 2868 wrote to memory of 1980	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	36
PID 2868 wrote to memory of 1980	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	36
PID 2868 wrote to memory of 2784	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	39
PID 2868 wrote to memory of 2784	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	39
PID 2868 wrote to memory of 2784	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	39
PID 2868 wrote to memory of 2784	2868	JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe	39
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41
PID 2376 wrote to memory of 2736	2376	ovywxxnb.exe	41

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\funbteyc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ovywxxnb.exe" C:\Windows\SysWOW64\funbteyc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create funbteyc binPath= "C:\Windows\SysWOW64\funbteyc\ovywxxnb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description funbteyc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start funbteyc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1980
- 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:2784

C:\Windows\SysWOW64\funbteyc\ovywxxnb.exe
C:\Windows\SysWOW64\funbteyc\ovywxxnb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16c69cdf241061a2871f4b2852c93e1e7fcc02c41f01b03a3a861700ef20f324.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- 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:2736

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\ovywxxnb.exe

Filesize
12.1MB

MD5
f4093996edc236063c902023c2cf4668

SHA1
0a109f9d2e191a2044a95bc9b46580c336ee1291

SHA256
7cbbf9ead0e367136bfe94a6654a44234291b61356352b63a03b7c613b5805a3

SHA512
1df483968fab19e2904e1b186221978f7f48f6b408200570b1b816c61549c3888c40818a262c03b5d083d7e3328b7f3d1c70d5b07c0cda50275d50f98cf79d66

Download Submit
memory/2376-17-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2736-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2736-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2736-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2736-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2868-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2868-3-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2868-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-9-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads