tofsee | 8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30/12/2024, 06:22

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General

Target

JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe
Size

242KB
MD5

a0bf195fa7579fdfbc39dd8bcba6a5dd
SHA1

d4cf4ec6326a38c0750f9324f18473383c61f383
SHA256

8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2
SHA512

5335564141fd678defbb34f71cddefbc2a50cce648095de7b211590c64e42ac20339113449b1ebe3f97ee7c26d5ca388feb153c55290278735c0c4b38bac3e48
SSDEEP

6144:5GZQ1thzjRY1VPr6ux7UkPf+52qDLgx9gfaY:0ZYzjRYbP2ZkPG4OLgx9

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\xetxlfnn = "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
2856	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\xetxlfnn\ImagePath = "C:\\Windows\\SysWOW64\\xetxlfnn\\igqooend.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	igqooend.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 2940	2764	igqooend.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2284	sc.exe
2748	sc.exe
2872	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igqooend.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 3064	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	30
PID 2380 wrote to memory of 3064	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	30
PID 2380 wrote to memory of 3064	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	30
PID 2380 wrote to memory of 3064	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	30
PID 2380 wrote to memory of 2208	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	32
PID 2380 wrote to memory of 2208	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	32
PID 2380 wrote to memory of 2208	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	32
PID 2380 wrote to memory of 2208	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	32
PID 2380 wrote to memory of 2284	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	34
PID 2380 wrote to memory of 2284	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	34
PID 2380 wrote to memory of 2284	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	34
PID 2380 wrote to memory of 2284	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	34
PID 2380 wrote to memory of 2748	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	36
PID 2380 wrote to memory of 2748	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	36
PID 2380 wrote to memory of 2748	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	36
PID 2380 wrote to memory of 2748	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	36
PID 2380 wrote to memory of 2872	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	38
PID 2380 wrote to memory of 2872	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	38
PID 2380 wrote to memory of 2872	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	38
PID 2380 wrote to memory of 2872	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	38
PID 2380 wrote to memory of 2856	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	41
PID 2380 wrote to memory of 2856	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	41
PID 2380 wrote to memory of 2856	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	41
PID 2380 wrote to memory of 2856	2380	JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe	41
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43
PID 2764 wrote to memory of 2940	2764	igqooend.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xetxlfnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\igqooend.exe" C:\Windows\SysWOW64\xetxlfnn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xetxlfnn binPath= "C:\Windows\SysWOW64\xetxlfnn\igqooend.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xetxlfnn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xetxlfnn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2856

C:\Windows\SysWOW64\xetxlfnn\igqooend.exe
C:\Windows\SysWOW64\xetxlfnn\igqooend.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8f5d6d636c5957cfc3c7b0bbf389cf33d18eca56012cec3d1510af375a9c52f2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2940

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\igqooend.exe

Filesize
13.9MB

MD5
785d28934af45819e8d2290d916df9d4

SHA1
33c0e2e91e0cee1825f6ef19eff777ee5d35baa2

SHA256
836e3abd4d1cc99e6b17a05f71787ccd498e154b132a3d220047c8d8e419e914

SHA512
84bad9c2dda30613f8bb1179497ce18c80773b15d77f6029d2120241b3a3d2ce88a519038b52c7612253fd3f2482ebe28216ee2ad68a276b4554e4c0eacd5024

Download Submit
memory/2380-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2380-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2764-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2940-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2940-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads