tofsee | f1487d97f490f7b6e072b9f097322b02ef8702b15872bce83382ee2b164d702f

Analysis

max time kernel
144s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-11-2024 13:51

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General

Target

8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe
Size

13.5MB
MD5

8bcc5ece70e5340c66d2e97415ffb075
SHA1

88c81af6078c36e4df87306a6dbb94e2f7158d44
SHA256

f1487d97f490f7b6e072b9f097322b02ef8702b15872bce83382ee2b164d702f
SHA512

9eceb1bd7a9ebbd5ed929a3e752280be6b9df30fa1ffedde0eb564b105eedb9e2c750a6b0cf703b45e3d529906eaa6ef748ce32d749f4de68b30bfe04ac22048
SSDEEP

393216:D88888888888888888888888888888888888888888888888888888888888888n:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

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\qnshlsjl = "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
2956	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\qnshlsjl\ImagePath = "C:\\Windows\\SysWOW64\\qnshlsjl\\dknlmmcq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2620	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3040	dknlmmcq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2620	3040	dknlmmcq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
868	sc.exe
2884	sc.exe
3044	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	netsh.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dknlmmcq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 1700	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	31
PID 804 wrote to memory of 1700	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	31
PID 804 wrote to memory of 1700	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	31
PID 804 wrote to memory of 1700	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	31
PID 804 wrote to memory of 2016	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	33
PID 804 wrote to memory of 2016	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	33
PID 804 wrote to memory of 2016	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	33
PID 804 wrote to memory of 2016	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	33
PID 804 wrote to memory of 868	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	35
PID 804 wrote to memory of 868	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	35
PID 804 wrote to memory of 868	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	35
PID 804 wrote to memory of 868	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	35
PID 804 wrote to memory of 2884	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	37
PID 804 wrote to memory of 2884	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	37
PID 804 wrote to memory of 2884	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	37
PID 804 wrote to memory of 2884	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	37
PID 804 wrote to memory of 3044	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	39
PID 804 wrote to memory of 3044	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	39
PID 804 wrote to memory of 3044	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	39
PID 804 wrote to memory of 3044	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	39
PID 804 wrote to memory of 2956	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	42
PID 804 wrote to memory of 2956	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	42
PID 804 wrote to memory of 2956	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	42
PID 804 wrote to memory of 2956	804	8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe	42
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44
PID 3040 wrote to memory of 2620	3040	dknlmmcq.exe	44

C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qnshlsjl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dknlmmcq.exe" C:\Windows\SysWOW64\qnshlsjl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qnshlsjl binPath= "C:\Windows\SysWOW64\qnshlsjl\dknlmmcq.exe /d\"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qnshlsjl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qnshlsjl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3044
- 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:2956

C:\Windows\SysWOW64\qnshlsjl\dknlmmcq.exe
C:\Windows\SysWOW64\qnshlsjl\dknlmmcq.exe /d"C:\Users\Admin\AppData\Local\Temp\8bcc5ece70e5340c66d2e97415ffb075_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- 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:2620

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\dknlmmcq.exe

Filesize
11.1MB

MD5
7be29c6f07a591909370c730d25e0474

SHA1
74a9d8c39bb05b732f9a2d53735f992626247355

SHA256
c8eed2f9ea3d4118cfde872489aea27c34edc9720a218cf483f76528aa2a9a87

SHA512
b0971bcb9dba67e8684e23b47f06e12f2d144fe2e21bec13fbe73265ff38476409b92415e2392fb6d003b8822ecea11a8ff6f52aaa8ae45bc9442aefbba47b77

Download Submit
memory/804-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/804-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/804-1-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/804-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/804-10-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/804-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/804-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2620-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2620-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3040-18-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads