tofsee | 999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23/12/2024, 16:03

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General

Target

JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe
Size

210KB
MD5

29405d13a965b33a9d00604f1f33f796
SHA1

2534e39a8b8dc5a81a5f7863d0d5a2c3db342194
SHA256

999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d
SHA512

f62e13a60316c0a28394255d7479d756150c3d3771dbfc79b69350f7a1692aab5967d029488d6d2e687e38d02dcf6abf5f0e582f7148b940504e8b36f50251bf
SSDEEP

3072:B7o+8bY15UTpVVU7JI7eSSIZ5Rk06UCOt6Wrxpzbgqru2sxkgaBChn:GDE15UTW7cS45cU76uzbgwujiga

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\xzfevzww = "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
2792	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\xzfevzww\ImagePath = "C:\\Windows\\SysWOW64\\xzfevzww\\fuzaucfy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2616	fuzaucfy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 2824	2616	fuzaucfy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
3068	sc.exe
2888	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	sc.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	fuzaucfy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe
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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 1480	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	30
PID 2592 wrote to memory of 1480	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	30
PID 2592 wrote to memory of 1480	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	30
PID 2592 wrote to memory of 1480	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	30
PID 2592 wrote to memory of 2984	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	32
PID 2592 wrote to memory of 2984	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	32
PID 2592 wrote to memory of 2984	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	32
PID 2592 wrote to memory of 2984	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	32
PID 2592 wrote to memory of 2888	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	34
PID 2592 wrote to memory of 2888	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	34
PID 2592 wrote to memory of 2888	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	34
PID 2592 wrote to memory of 2888	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	34
PID 2592 wrote to memory of 2864	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	36
PID 2592 wrote to memory of 2864	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	36
PID 2592 wrote to memory of 2864	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	36
PID 2592 wrote to memory of 2864	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	36
PID 2592 wrote to memory of 3068	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	38
PID 2592 wrote to memory of 3068	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	38
PID 2592 wrote to memory of 3068	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	38
PID 2592 wrote to memory of 3068	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	38
PID 2592 wrote to memory of 2792	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	41
PID 2592 wrote to memory of 2792	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	41
PID 2592 wrote to memory of 2792	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	41
PID 2592 wrote to memory of 2792	2592	JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe	41
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43
PID 2616 wrote to memory of 2824	2616	fuzaucfy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xzfevzww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fuzaucfy.exe" C:\Windows\SysWOW64\xzfevzww\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xzfevzww binPath= "C:\Windows\SysWOW64\xzfevzww\fuzaucfy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xzfevzww "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xzfevzww
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3068
- 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:2792

C:\Windows\SysWOW64\xzfevzww\fuzaucfy.exe
C:\Windows\SysWOW64\xzfevzww\fuzaucfy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_999810effa8e1b6403ed675a4fe4b8dac3fc79bf3ae7f3dbf538c7126fd62f4d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616
- 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:2824

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\fuzaucfy.exe

Filesize
13.6MB

MD5
b94b6706e09b423fa131bea5c192ef47

SHA1
e53e2cca7861ee2bb10b0be6d313492bdd5db4a7

SHA256
3c91e834c66cc674f6be05917595f98fcd16a8a39adabc2629dfd265896e629a

SHA512
748855a067a13e02516492ec5ccc9c7fc579365b2bbc67f44aaa778acc243c0568e9d112f70fd1f16741370d3db586c2603df52647687dccc88d0133f40c16bd

Download Submit
memory/2592-7-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2592-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2592-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2592-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2592-8-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2592-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2592-6-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2616-16-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2824-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads