tofsee | bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 18:30

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General

Target

JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
Size

160KB
MD5

f8fc9486f54b60f1803e7690a9a2458a
SHA1

c9dd64c456997592297c283ba996410730bf7c7d
SHA256

bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86
SHA512

5e103634b44ceb7da4966361fed745f2604c37afd76a07631d06a8fd5903c7e58505b963bfb1aaacf24c3b4a57ae48db72cc630912826a52bbff1736bc2e19bb
SSDEEP

3072:oN768L++ZHa/PtPPtMOgPljef9J9NR6vmp1n5Rw7HvON3:y681A/PtXtMHK1JQyJYLv

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\nbuyrqqk = "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
1888	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\nbuyrqqk\ImagePath = "C:\\Windows\\SysWOW64\\nbuyrqqk\\dnsfmhgv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2472	dnsfmhgv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2472 set thread context of 2888	2472	dnsfmhgv.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2944	sc.exe
1548	sc.exe
2052	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dnsfmhgv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	30
PID 2036 wrote to memory of 2044	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	30
PID 2036 wrote to memory of 2064	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	32
PID 2036 wrote to memory of 2064	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	32
PID 2036 wrote to memory of 2064	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	32
PID 2036 wrote to memory of 2064	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	32
PID 2036 wrote to memory of 2052	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	34
PID 2036 wrote to memory of 2052	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	34
PID 2036 wrote to memory of 2052	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	34
PID 2036 wrote to memory of 2052	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	34
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	36
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	36
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	36
PID 2036 wrote to memory of 1548	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	36
PID 2036 wrote to memory of 2944	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	39
PID 2036 wrote to memory of 2944	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	39
PID 2036 wrote to memory of 2944	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	39
PID 2036 wrote to memory of 2944	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	39
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2472 wrote to memory of 2888	2472	dnsfmhgv.exe	42
PID 2036 wrote to memory of 1888	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	43
PID 2036 wrote to memory of 1888	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	43
PID 2036 wrote to memory of 1888	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	43
PID 2036 wrote to memory of 1888	2036	JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nbuyrqqk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dnsfmhgv.exe" C:\Windows\SysWOW64\nbuyrqqk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nbuyrqqk binPath= "C:\Windows\SysWOW64\nbuyrqqk\dnsfmhgv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2052
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nbuyrqqk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nbuyrqqk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- 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:1888

C:\Windows\SysWOW64\nbuyrqqk\dnsfmhgv.exe
C:\Windows\SysWOW64\nbuyrqqk\dnsfmhgv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf24720a0ed6ead9c2ec1d776bc48953e9cabc042168376cd09e9a9439f52c86.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2472
- 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:2888

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:\Windows\SysWOW64\nbuyrqqk\dnsfmhgv.exe

Filesize
13.3MB

MD5
a8d29785240e81a82652c07f2d2572d3

SHA1
b2060d61e058f32db4e485416b1a6f9db90b4417

SHA256
1ff971e30e51b0e87f585617c18894bc93ee0aefa4261a574527c6c0396b60fa

SHA512
a71123cafa6ed6b217083a976f4bbe4c50012cf77010c851134e74737955f2896daff751fcb6f724090835566d94f3be81bc554ac5463247a45d248524780354

Download Submit
memory/2036-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-13-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2036-12-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2036-14-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2036-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2036-1-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/2036-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2472-10-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2888-9-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2888-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-6-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2888-16-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download
memory/2888-17-0x0000000000110000-0x0000000000125000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads