tofsee | c3c45c2d5a6de31334e9eb57559f442ddc07fc9dce08062714247b69952931ef

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 05:31

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General

Target

d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe
Size

13.3MB
MD5

9ac9b03395cb95636509dc9662ce4331
SHA1

2a88725393914efc779d7a18d0e6b8e6b403d549
SHA256

d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5
SHA512

c5583b5569ca303b303b7d4b688c59d8dbd42b171353faaf6e60772f4fe18d7d4901a12c708494690636223da5c71ff78bc9a33cf73368e084264b5f9d04dc57
SSDEEP

98304:666666666666666666666666666666666666666666666666666666666666666D:

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\nqjvizl = "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
2652	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\nqjvizl\ImagePath = "C:\\Windows\\SysWOW64\\nqjvizl\\wqmsdnfl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	wqmsdnfl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2008	2756	wqmsdnfl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2844	sc.exe
2252	sc.exe
2684	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	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.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	wqmsdnfl.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2792	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	30
PID 2880 wrote to memory of 2792	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	30
PID 2880 wrote to memory of 2792	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	30
PID 2880 wrote to memory of 2792	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	30
PID 2880 wrote to memory of 2840	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	32
PID 2880 wrote to memory of 2840	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	32
PID 2880 wrote to memory of 2840	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	32
PID 2880 wrote to memory of 2840	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	32
PID 2880 wrote to memory of 2844	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	34
PID 2880 wrote to memory of 2844	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	34
PID 2880 wrote to memory of 2844	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	34
PID 2880 wrote to memory of 2844	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	34
PID 2880 wrote to memory of 2252	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	36
PID 2880 wrote to memory of 2252	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	36
PID 2880 wrote to memory of 2252	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	36
PID 2880 wrote to memory of 2252	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	36
PID 2880 wrote to memory of 2684	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	38
PID 2880 wrote to memory of 2684	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	38
PID 2880 wrote to memory of 2684	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	38
PID 2880 wrote to memory of 2684	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	38
PID 2880 wrote to memory of 2652	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	40
PID 2880 wrote to memory of 2652	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	40
PID 2880 wrote to memory of 2652	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	40
PID 2880 wrote to memory of 2652	2880	d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe	40
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43
PID 2756 wrote to memory of 2008	2756	wqmsdnfl.exe	43

C:\Users\Admin\AppData\Local\Temp\d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe
"C:\Users\Admin\AppData\Local\Temp\d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nqjvizl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wqmsdnfl.exe" C:\Windows\SysWOW64\nqjvizl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nqjvizl binPath= "C:\Windows\SysWOW64\nqjvizl\wqmsdnfl.exe /d\"C:\Users\Admin\AppData\Local\Temp\d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nqjvizl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nqjvizl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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:2652

C:\Windows\SysWOW64\nqjvizl\wqmsdnfl.exe
C:\Windows\SysWOW64\nqjvizl\wqmsdnfl.exe /d"C:\Users\Admin\AppData\Local\Temp\d2eef19387f131ebef8b9a6599f2d15a99a38712598e24b49fb115474f937de5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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:2008

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\wqmsdnfl.exe

Filesize
14.0MB

MD5
34a53a068dd23b5939fd5a80b476a552

SHA1
110e7c8c85cb51f81ac9ddb5fc8937e887824de5

SHA256
9cd813b0f5519ebd6cc3091b2c4bf40e0327170215b70eb493b2807b2ee6a7f7

SHA512
9ee837a82423fcb0631a16921533f169fdd83b7c7ad0d1b6518cd2d949e3d937cc72ec5e36df6e4d38f548b116c267aee6031c8c49dc40f6b8cb0866bbbe8a80

Download Submit
memory/2008-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2008-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2008-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2008-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2008-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2756-13-0x0000000000400000-0x0000000002B52000-memory.dmp

Filesize
39.3MB

Download
memory/2880-2-0x0000000000400000-0x0000000002B52000-memory.dmp

Filesize
39.3MB

Download
memory/2880-3-0x0000000000400000-0x0000000002B52000-memory.dmp

Filesize
39.3MB

Download
memory/2880-5-0x0000000000400000-0x0000000002B52000-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