tofsee | b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00

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
23-12-2024 14:00

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General

Target

JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe
Size

188KB
MD5

b902bbf8979f1a374cf1bac4e0be9767
SHA1

01f9cdfc71e798acdab741c4b702abdbc4561348
SHA256

b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00
SHA512

0edd6331d158f267ae081e075b3256c600655c9b0afd6c669baa1a8b72a5b51fc54567ca4911c6fb60c715588717590fe8d6c0a0e311e15b4bdf1184c3f68784
SSDEEP

3072:x17s49QB1NQWpUsMYvHaa9wLMZHHtpZa9uD6Vdyhkf:x59QB1NQWp1bH2MBtwVf

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\mrkhmfi = "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
2848	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\mrkhmfi\ImagePath = "C:\\Windows\\SysWOW64\\mrkhmfi\\apqwjuon.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2820	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2896	apqwjuon.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2820	2896	apqwjuon.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2964	sc.exe
2728	sc.exe
2844	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_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	apqwjuon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 2196	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	30
PID 2696 wrote to memory of 2196	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	30
PID 2696 wrote to memory of 2196	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	30
PID 2696 wrote to memory of 2196	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	30
PID 2696 wrote to memory of 2372	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	32
PID 2696 wrote to memory of 2372	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	32
PID 2696 wrote to memory of 2372	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	32
PID 2696 wrote to memory of 2372	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	32
PID 2696 wrote to memory of 2964	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	34
PID 2696 wrote to memory of 2964	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	34
PID 2696 wrote to memory of 2964	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	34
PID 2696 wrote to memory of 2964	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	34
PID 2696 wrote to memory of 2728	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	36
PID 2696 wrote to memory of 2728	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	36
PID 2696 wrote to memory of 2728	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	36
PID 2696 wrote to memory of 2728	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	36
PID 2696 wrote to memory of 2844	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	38
PID 2696 wrote to memory of 2844	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	38
PID 2696 wrote to memory of 2844	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	38
PID 2696 wrote to memory of 2844	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	38
PID 2696 wrote to memory of 2848	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	41
PID 2696 wrote to memory of 2848	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	41
PID 2696 wrote to memory of 2848	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	41
PID 2696 wrote to memory of 2848	2696	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	41
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43
PID 2896 wrote to memory of 2820	2896	apqwjuon.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mrkhmfi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\apqwjuon.exe" C:\Windows\SysWOW64\mrkhmfi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mrkhmfi binPath= "C:\Windows\SysWOW64\mrkhmfi\apqwjuon.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mrkhmfi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mrkhmfi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- 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:2848

C:\Windows\SysWOW64\mrkhmfi\apqwjuon.exe
C:\Windows\SysWOW64\mrkhmfi\apqwjuon.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2896
- 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:2820

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\apqwjuon.exe

Filesize
13.5MB

MD5
292a4602c353a3bbb64796cda3ca8bea

SHA1
89b83e1cb6c4e43d0501eb4f9c38fe290ab3d496

SHA256
933221f51ece388846049b417194ba36c94bcbf42b5c1ac9550bf653718b48aa

SHA512
01f6701c9c125a86cf372f3723f78318d801da7d3d354961720488680448ea2f0bb4e371b09df9602ade019391d2b2c0bb3ef05cb9909bc5f43d5281b8065bdc

Download Submit
memory/2696-7-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2696-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-1-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/2696-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2696-8-0x00000000003C0000-0x00000000003D3000-memory.dmp

Filesize
76KB

Download
memory/2696-0-0x00000000001B0000-0x00000000001BD000-memory.dmp

Filesize
52KB

Download
memory/2696-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2820-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2896-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads