tofsee | bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 02:34

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General

Target

JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe
Size

292KB
MD5

be4db488e1175f94ff48a099dbfec832
SHA1

c6ea22eb8dbeb906635048ef4fe1157dc0c96365
SHA256

bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9
SHA512

424bf39eae62856db8e57712a1616d2dba4474aa062f8da48b7ab63b419abae4120b657db356d31cedca2afd2e061ce780f52d5b9598349934cf9d0ad0295787
SSDEEP

6144:Xe91EWAEf6zdvBIWYu+0frSXuZet0yobvPtxkmzmQJ/G:u913izdBYujDSXuZet0yobvrfzm

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\ilqmnaxy = "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
2540	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\ilqmnaxy\ImagePath = "C:\\Windows\\SysWOW64\\ilqmnaxy\\fuvbozts.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2556	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	fuvbozts.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 2556	2656	fuvbozts.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2836	sc.exe
3044	sc.exe
2920	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	fuvbozts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2040	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	31
PID 2016 wrote to memory of 2040	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	31
PID 2016 wrote to memory of 2040	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	31
PID 2016 wrote to memory of 2040	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	31
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	33
PID 2016 wrote to memory of 2224	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	33
PID 2016 wrote to memory of 2836	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	35
PID 2016 wrote to memory of 2836	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	35
PID 2016 wrote to memory of 2836	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	35
PID 2016 wrote to memory of 2836	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	35
PID 2016 wrote to memory of 3044	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	37
PID 2016 wrote to memory of 3044	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	37
PID 2016 wrote to memory of 3044	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	37
PID 2016 wrote to memory of 3044	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	37
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	39
PID 2016 wrote to memory of 2920	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	39
PID 2016 wrote to memory of 2540	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	42
PID 2016 wrote to memory of 2540	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	42
PID 2016 wrote to memory of 2540	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	42
PID 2016 wrote to memory of 2540	2016	JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe	42
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44
PID 2656 wrote to memory of 2556	2656	fuvbozts.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ilqmnaxy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fuvbozts.exe" C:\Windows\SysWOW64\ilqmnaxy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ilqmnaxy binPath= "C:\Windows\SysWOW64\ilqmnaxy\fuvbozts.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ilqmnaxy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ilqmnaxy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2920
- 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:2540

C:\Windows\SysWOW64\ilqmnaxy\fuvbozts.exe
C:\Windows\SysWOW64\ilqmnaxy\fuvbozts.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bc73ac7b6af032e502c4ffa71acedacd1062679ff9f6d35ca046eb8f4b0e43a9.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- 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:2556

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\fuvbozts.exe

Filesize
11.5MB

MD5
06afbc9f938154270d124197b9a836f5

SHA1
99221bc791d9a974b6cf51599abfe9d02f7194d8

SHA256
7badb8a4639c37989887d301874a9bfd1ab362fb4505386bbf3831aa513ff656

SHA512
924c524072a812bce37410829a3c795876afb813eba6f7bcc8af4c7adc1f200792c9b690ef42307cfa8bdda7fd4d8ace04d4d9a7b5f16a7bc53862c45355d5a1

Download Submit
memory/2016-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2016-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2016-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-9-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

Filesize
1024KB

Download
memory/2016-1-0x0000000002CC0000-0x0000000002DC0000-memory.dmp

Filesize
1024KB

Download
memory/2016-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2556-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2556-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2556-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2656-16-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads