tofsee | 6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 02:45

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General

Target

JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe
Size

160KB
MD5

f8751659a78b753753c6cd06c414358e
SHA1

d8b354927a734f92cd0d3972cbacef7e14ebd046
SHA256

6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb
SHA512

beac5506be29a2e9543250f81158cf9714c8a4d01690f3e3756bfa4ecfe7431327c7ff061cf4ea49aa8e16061c4d43d89cfa97f9bcd9843a1e798fd01dc99a6a
SSDEEP

1536:Ra2VSyQsJgXWheKALv54FZ9YsnVGMkSflFUG43TgLjDo81l+UVwvdj6peviBTPmC:clNGUja68XU2EUicgiCSYxUAVGh0a

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\eqlkoscv = "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
2968	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\eqlkoscv\ImagePath = "C:\\Windows\\SysWOW64\\eqlkoscv\\bgfdtzix.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2924	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	bgfdtzix.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2748 set thread context of 2924	2748	bgfdtzix.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1812	sc.exe
1044	sc.exe
892	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_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bgfdtzix.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 1124	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	30
PID 2292 wrote to memory of 1124	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	30
PID 2292 wrote to memory of 1124	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	30
PID 2292 wrote to memory of 1124	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	30
PID 2292 wrote to memory of 2552	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	32
PID 2292 wrote to memory of 2552	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	32
PID 2292 wrote to memory of 2552	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	32
PID 2292 wrote to memory of 2552	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	32
PID 2292 wrote to memory of 1812	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	34
PID 2292 wrote to memory of 1812	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	34
PID 2292 wrote to memory of 1812	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	34
PID 2292 wrote to memory of 1812	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	34
PID 2292 wrote to memory of 1044	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	36
PID 2292 wrote to memory of 1044	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	36
PID 2292 wrote to memory of 1044	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	36
PID 2292 wrote to memory of 1044	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	36
PID 2292 wrote to memory of 892	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	38
PID 2292 wrote to memory of 892	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	38
PID 2292 wrote to memory of 892	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	38
PID 2292 wrote to memory of 892	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	38
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2748 wrote to memory of 2924	2748	bgfdtzix.exe	41
PID 2292 wrote to memory of 2968	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	42
PID 2292 wrote to memory of 2968	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	42
PID 2292 wrote to memory of 2968	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	42
PID 2292 wrote to memory of 2968	2292	JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eqlkoscv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bgfdtzix.exe" C:\Windows\SysWOW64\eqlkoscv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eqlkoscv binPath= "C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.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 eqlkoscv "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 eqlkoscv
  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:2968

C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe
C:\Windows\SysWOW64\eqlkoscv\bgfdtzix.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6fe7424d5f4d4ce6c5a5eef99cad1e1ffb0f4dad3ddbb932546a3e99286dc9bb.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:2924

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\bgfdtzix.exe

Filesize
11.0MB

MD5
105fa6129f468a8c2392e11baa279d6a

SHA1
5cf4ef3b7f6b8ef9ff45793d1ef637dbe5f59936

SHA256
0dfa2e51a6b3c929f3a25355e9145477ee439ba77f4f311ddef200e2f3d78698

SHA512
da3ea84c44f212dcc69670e5cbab07a137bcc7df24404864866eac25ee90b486c16d46843bc0046ba92378e1e0ba21f809abd0020b9f9b5e580751dbc4509499

Download Submit
memory/2292-14-0x00000000002C0000-0x00000000002D3000-memory.dmp

Filesize
76KB

Download
memory/2292-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2292-1-0x00000000002C0000-0x00000000002D3000-memory.dmp

Filesize
76KB

Download
memory/2292-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2292-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2292-13-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2292-12-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2748-11-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2924-9-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2924-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2924-6-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2924-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2924-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads