tofsee | ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 23:25

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General

Target

ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe
Size

355KB
MD5

1d5d4b18e2f0f03c8de6d08390dc192c
SHA1

f76fe6a8dd3a26d51a94c7a44e93f549bd182518
SHA256

ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201
SHA512

e0a12427841f8c2f4f3655f0a42a210d5ae79bdb51d4a351315a800653b786ce2257600da7f3e2a592c65146594e06fa9cee68ff9dd62a991fa909f1fee4313d
SSDEEP

6144:hvo5HY2USvj5R/i2gCiX0oH1VmyerYDn1QqaFZczX3V5wRjejHH5TAb5:hA5HY2USr5R/i2gCy0oVVmyerK1/aFZ7

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\kiunrspz = "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
2980	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\kiunrspz\ImagePath = "C:\\Windows\\SysWOW64\\kiunrspz\\kngomowg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2960	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	kngomowg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2960	2832	kngomowg.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2332	sc.exe
2876	sc.exe
1796	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	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.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
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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kngomowg.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2120	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	30
PID 2412 wrote to memory of 2120	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	30
PID 2412 wrote to memory of 2120	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	30
PID 2412 wrote to memory of 2120	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	30
PID 2412 wrote to memory of 2212	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	32
PID 2412 wrote to memory of 2212	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	32
PID 2412 wrote to memory of 2212	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	32
PID 2412 wrote to memory of 2212	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	32
PID 2412 wrote to memory of 2332	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	34
PID 2412 wrote to memory of 2332	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	34
PID 2412 wrote to memory of 2332	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	34
PID 2412 wrote to memory of 2332	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	34
PID 2412 wrote to memory of 2876	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	36
PID 2412 wrote to memory of 2876	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	36
PID 2412 wrote to memory of 2876	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	36
PID 2412 wrote to memory of 2876	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	36
PID 2412 wrote to memory of 1796	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	38
PID 2412 wrote to memory of 1796	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	38
PID 2412 wrote to memory of 1796	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	38
PID 2412 wrote to memory of 1796	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	38
PID 2412 wrote to memory of 2980	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	41
PID 2412 wrote to memory of 2980	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	41
PID 2412 wrote to memory of 2980	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	41
PID 2412 wrote to memory of 2980	2412	ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe	41
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43
PID 2832 wrote to memory of 2960	2832	kngomowg.exe	43

C:\Users\Admin\AppData\Local\Temp\ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe
"C:\Users\Admin\AppData\Local\Temp\ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kiunrspz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kngomowg.exe" C:\Windows\SysWOW64\kiunrspz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2212
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kiunrspz binPath= "C:\Windows\SysWOW64\kiunrspz\kngomowg.exe /d\"C:\Users\Admin\AppData\Local\Temp\ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kiunrspz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kiunrspz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1796
- 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:2980

C:\Windows\SysWOW64\kiunrspz\kngomowg.exe
C:\Windows\SysWOW64\kiunrspz\kngomowg.exe /d"C:\Users\Admin\AppData\Local\Temp\ff21828fb3915046a904aca7876e98a8f994b2fcbf872d0eee15b0f025380201.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2960

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\kngomowg.exe

Filesize
12.0MB

MD5
aae3ac34c6ffe9698358454d90372266

SHA1
26ceb7fe71dddeb121f00d63e2ed260f90353173

SHA256
74233656815a047bc39e20a62187c9741863ef15aacceaf2ee161ad0e0b3fd24

SHA512
b33d6814cb02ab172bc035121bde795a73286ea63aae3fb5d5e99737dd6c6053fbadaa8c5bc9f73d44695fa87ffaece4fd4197f19ca534193e603aabda18ab61

Download Submit
memory/2412-1-0x0000000001840000-0x0000000001940000-memory.dmp

Filesize
1024KB

Download
memory/2412-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-4-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2412-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2412-9-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2832-16-0x0000000000400000-0x00000000016CE000-memory.dmp

Filesize
18.8MB

Download
memory/2960-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2960-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2960-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2960-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads