tofsee | 8b254ac23621062699afd739cf14061671517bb41e95ee4216cce5aac52f6fb5

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 04:04

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General

Target

JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe
Size

10.6MB
MD5

8a339c17be9170dbbeb313831717a7e3
SHA1

23ced3569ab8478bce1023900101d902309ff0d3
SHA256

8b254ac23621062699afd739cf14061671517bb41e95ee4216cce5aac52f6fb5
SHA512

0c4f679ee20b41891097ed27e8c37e97aa04924eec6626c582d8b6a1489577189f83a329798db6ae7dcdc29cb41f0b25286d637a028939d1981a891fee9081bf
SSDEEP

196608:AxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxR:

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\wmqpenhs = "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\wmqpenhs\ImagePath = "C:\\Windows\\SysWOW64\\wmqpenhs\\ylursxjw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2560	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2824	ylursxjw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2560	2824	ylursxjw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1860	sc.exe
2216	sc.exe
2788	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	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	ylursxjw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2072	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	30
PID 2488 wrote to memory of 2072	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	30
PID 2488 wrote to memory of 2072	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	30
PID 2488 wrote to memory of 2072	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	30
PID 2488 wrote to memory of 264	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	32
PID 2488 wrote to memory of 264	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	32
PID 2488 wrote to memory of 264	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	32
PID 2488 wrote to memory of 264	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	32
PID 2488 wrote to memory of 1860	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	34
PID 2488 wrote to memory of 1860	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	34
PID 2488 wrote to memory of 1860	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	34
PID 2488 wrote to memory of 1860	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	34
PID 2488 wrote to memory of 2216	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	36
PID 2488 wrote to memory of 2216	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	36
PID 2488 wrote to memory of 2216	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	36
PID 2488 wrote to memory of 2216	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	36
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	39
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	39
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	39
PID 2488 wrote to memory of 2788	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	39
PID 2488 wrote to memory of 2792	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	42
PID 2488 wrote to memory of 2792	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	42
PID 2488 wrote to memory of 2792	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	42
PID 2488 wrote to memory of 2792	2488	JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe	42
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44
PID 2824 wrote to memory of 2560	2824	ylursxjw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wmqpenhs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ylursxjw.exe" C:\Windows\SysWOW64\wmqpenhs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wmqpenhs binPath= "C:\Windows\SysWOW64\wmqpenhs\ylursxjw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wmqpenhs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wmqpenhs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- 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\wmqpenhs\ylursxjw.exe
C:\Windows\SysWOW64\wmqpenhs\ylursxjw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a339c17be9170dbbeb313831717a7e3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2560

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\ylursxjw.exe

Filesize
11.1MB

MD5
bc9524be4a1748a729fb897c833338c2

SHA1
d662c8f7e59d6db4f7a73e30d0758fa17ff689ba

SHA256
27c242e0798854404c0adcb9f9e4dc494817cbcf88fa66cfcd0a70e4ee98e821

SHA512
bdae62b5609d6c79114599fdc196716e74fb653352409f7090c5493a2404865ccc83a42e527471fbe7b3526f3ff378748df8c85c1ad742c141c065d6310f4605

Download Submit
memory/2488-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2488-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2488-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2488-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2488-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2488-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2488-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2560-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2560-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2560-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-16-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads