tofsee | c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 07:56

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General

Target

JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe
Size

157KB
MD5

3bb0a31288d781001d33aeedf06dd8dc
SHA1

981e01149abcd4418142f41758787cf91c97e9c5
SHA256

c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc
SHA512

c0e8728c316b22fb7ac1e3fde375217240c9ac6f572c8af843f068cde53193534070a62484cbb504ece5e0f09a7d06256e2c940cf36a649741716b001d796c3d
SSDEEP

1536:o7iZ6fjIz/BBE9T6WKPeazpJn1ro7PAak0Am4xz3eyfAQpCJyGUx8z6CDzMAOjM0:+EtUJfg0sz3Jt0JVNxDOI5R4T9

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\ifzwaiyv = "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
2908	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\ifzwaiyv\ImagePath = "C:\\Windows\\SysWOW64\\ifzwaiyv\\lesewqsf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2804	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	lesewqsf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2804	2748	lesewqsf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
892	sc.exe
1812	sc.exe
1044	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_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.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	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	lesewqsf.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2164	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	30
PID 2440 wrote to memory of 2164	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	30
PID 2440 wrote to memory of 2164	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	30
PID 2440 wrote to memory of 2164	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	30
PID 2440 wrote to memory of 2560	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	32
PID 2440 wrote to memory of 2560	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	32
PID 2440 wrote to memory of 2560	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	32
PID 2440 wrote to memory of 2560	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	32
PID 2440 wrote to memory of 1812	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	34
PID 2440 wrote to memory of 1812	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	34
PID 2440 wrote to memory of 1812	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	34
PID 2440 wrote to memory of 1812	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	34
PID 2440 wrote to memory of 1044	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	36
PID 2440 wrote to memory of 1044	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	36
PID 2440 wrote to memory of 1044	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	36
PID 2440 wrote to memory of 1044	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	36
PID 2440 wrote to memory of 892	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	38
PID 2440 wrote to memory of 892	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	38
PID 2440 wrote to memory of 892	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	38
PID 2440 wrote to memory of 892	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	38
PID 2440 wrote to memory of 2908	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	41
PID 2440 wrote to memory of 2908	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	41
PID 2440 wrote to memory of 2908	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	41
PID 2440 wrote to memory of 2908	2440	JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe	41
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43
PID 2748 wrote to memory of 2804	2748	lesewqsf.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ifzwaiyv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lesewqsf.exe" C:\Windows\SysWOW64\ifzwaiyv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ifzwaiyv binPath= "C:\Windows\SysWOW64\ifzwaiyv\lesewqsf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ifzwaiyv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ifzwaiyv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:892
- 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:2908

C:\Windows\SysWOW64\ifzwaiyv\lesewqsf.exe
C:\Windows\SysWOW64\ifzwaiyv\lesewqsf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c077d664f953607162a99c61e05cd65110f848cbfcc4140ab6d0429fca29f0dc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:2804

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\lesewqsf.exe

Filesize
14.7MB

MD5
46f130e440c2c7f8c14cb393596d01b6

SHA1
5e850de16853cfcc77d798c2233a067f346f4295

SHA256
9a4600b07075e6be23c2428ed13b2f26e9edbaa2648023579c44aec665a35a54

SHA512
6f93abbe21d784f4b1f9e71685c27c75238898eba0d7cada10d0464ffbe52b199181649044ed4f58bea93a319c7ced5faaa404557e56185b39297acd693656bc

Download Submit
memory/2440-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2440-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2440-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2440-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2440-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2440-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2440-6-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2748-16-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2804-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2804-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads