tofsee | d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 17:32

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General

Target

d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe
Size

280KB
MD5

1efcf9901e3eccbd59173a37452e238b
SHA1

9585897fce73f306b95a2c088483438893b62853
SHA256

d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca
SHA512

5eebeec99f6aaa67729e5a1dc19a5a7dccc9b7f47e4f721df8440c071cfa95698d4321eefb9faee4e21fadda9ea6f60c14030b1818450f11dd2bdd833a408cfd
SSDEEP

6144:DU6BbccF0QC7hSIZ34p4rIlROhxxpeTr/ekIw:3BbLF0d7hWGrICzxp6L

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\ilcxqahx = "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
2496	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\ilcxqahx\ImagePath = "C:\\Windows\\SysWOW64\\ilcxqahx\\wmhtnzdv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2928	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2756	wmhtnzdv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2928	2756	wmhtnzdv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2464	sc.exe
2328	sc.exe
2908	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmhtnzdv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2368	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	30
PID 2112 wrote to memory of 2368	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	30
PID 2112 wrote to memory of 2368	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	30
PID 2112 wrote to memory of 2368	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	30
PID 2112 wrote to memory of 2920	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	32
PID 2112 wrote to memory of 2920	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	32
PID 2112 wrote to memory of 2920	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	32
PID 2112 wrote to memory of 2920	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	32
PID 2112 wrote to memory of 2464	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	34
PID 2112 wrote to memory of 2464	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	34
PID 2112 wrote to memory of 2464	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	34
PID 2112 wrote to memory of 2464	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	34
PID 2112 wrote to memory of 2328	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	36
PID 2112 wrote to memory of 2328	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	36
PID 2112 wrote to memory of 2328	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	36
PID 2112 wrote to memory of 2328	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	36
PID 2112 wrote to memory of 2908	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	38
PID 2112 wrote to memory of 2908	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	38
PID 2112 wrote to memory of 2908	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	38
PID 2112 wrote to memory of 2908	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	38
PID 2112 wrote to memory of 2496	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	41
PID 2112 wrote to memory of 2496	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	41
PID 2112 wrote to memory of 2496	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	41
PID 2112 wrote to memory of 2496	2112	d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe	41
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43
PID 2756 wrote to memory of 2928	2756	wmhtnzdv.exe	43

C:\Users\Admin\AppData\Local\Temp\d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe
"C:\Users\Admin\AppData\Local\Temp\d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ilcxqahx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wmhtnzdv.exe" C:\Windows\SysWOW64\ilcxqahx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ilcxqahx binPath= "C:\Windows\SysWOW64\ilcxqahx\wmhtnzdv.exe /d\"C:\Users\Admin\AppData\Local\Temp\d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2464
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ilcxqahx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ilcxqahx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2908
- 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:2496

C:\Windows\SysWOW64\ilcxqahx\wmhtnzdv.exe
C:\Windows\SysWOW64\ilcxqahx\wmhtnzdv.exe /d"C:\Users\Admin\AppData\Local\Temp\d0a0ca092838272e6388908e3add4baec96a62c7e79dc60dad9116fe77f7cdca.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:2928

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\wmhtnzdv.exe

Filesize
10.3MB

MD5
853bcd7d83f7cd7db782ba7dc964b1fc

SHA1
4c6d3a4c342d3e76bbf118b852a2afaebf25dd9f

SHA256
8eb496df0cb133d4016ba8e74c587346fca26fc4c843d5a38d919c58aff29068

SHA512
23244b93050857e948acf765d4196da64292887bc40dc9da8ba2af931f5c8f0eb19e677766c9abf68b326b4a849519993b2dbef01b84215bd3c7e1eac0ae1f2b

Download Submit
memory/2112-8-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2112-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2112-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2112-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2112-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2112-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2756-16-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2928-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2928-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads