tofsee | 932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0

General

Target

932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe
Size

334KB
MD5

db961867695b25febb937fcf6b3595eb
SHA1

583659154883a51674224ffec8cfb9df68fac90b
SHA256

932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0
SHA512

f19079147170f3615bd67724b1a179a2c0eb259ca9343990573bdf54226548f611136228bc989d793c91a16bc637665663869037a24277cb361c7087bcafbf40
SSDEEP

6144:PrqoF5nyBcVI7ivrWNjDyYegF90xu2VqUGN1k6ELv1rXV:VnPprWhDyY7F9Mu2Vqfwr

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

mubrikych.top

oxxyfix.xyz

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
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
4784	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\eyhgzogb\ImagePath = "C:\\Windows\\SysWOW64\\eyhgzogb\\mwkberod.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe

Deletes itself 1 IoCs

pid	Process
4472	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	mwkberod.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2448 set thread context of 4472	2448	mwkberod.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3768	sc.exe
4688	sc.exe
3652	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3720	2648	WerFault.exe	81
228	2448	WerFault.exe	92

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	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	mwkberod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 3620	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	82
PID 2648 wrote to memory of 3620	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	82
PID 2648 wrote to memory of 3620	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	82
PID 2648 wrote to memory of 5068	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	84
PID 2648 wrote to memory of 5068	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	84
PID 2648 wrote to memory of 5068	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	84
PID 2648 wrote to memory of 3768	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	86
PID 2648 wrote to memory of 3768	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	86
PID 2648 wrote to memory of 3768	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	86
PID 2648 wrote to memory of 4688	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	88
PID 2648 wrote to memory of 4688	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	88
PID 2648 wrote to memory of 4688	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	88
PID 2648 wrote to memory of 3652	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	90
PID 2648 wrote to memory of 3652	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	90
PID 2648 wrote to memory of 3652	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	90
PID 2648 wrote to memory of 4784	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	93
PID 2648 wrote to memory of 4784	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	93
PID 2648 wrote to memory of 4784	2648	932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe	93
PID 2448 wrote to memory of 4472	2448	mwkberod.exe	98
PID 2448 wrote to memory of 4472	2448	mwkberod.exe	98
PID 2448 wrote to memory of 4472	2448	mwkberod.exe	98
PID 2448 wrote to memory of 4472	2448	mwkberod.exe	98
PID 2448 wrote to memory of 4472	2448	mwkberod.exe	98

C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe
"C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eyhgzogb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mwkberod.exe" C:\Windows\SysWOW64\eyhgzogb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eyhgzogb binPath= "C:\Windows\SysWOW64\eyhgzogb\mwkberod.exe /d\"C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3768
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eyhgzogb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eyhgzogb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3652
- 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:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 1248
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\eyhgzogb\mwkberod.exe
C:\Windows\SysWOW64\eyhgzogb\mwkberod.exe /d"C:\Users\Admin\AppData\Local\Temp\932ba2f5b02919626625a80b1853c40b664c5e19aa5a43dbaf4825e6ff84d8a0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4472
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 508
  2⤵
  - Program crash
  PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2648 -ip 2648
1⤵
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2448 -ip 2448
1⤵
PID:4812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mwkberod.exe

Filesize
10.0MB

MD5
d2f9d36d0c0cdda3080ba345c6657e0c

SHA1
0924d24ff7bedfd4d00ebd57908155fca46f1371

SHA256
9db6faf723f8e2091fa2a44a5e0878357c5db0c60bb16f47c7aa6b53c6203602

SHA512
52821256480a72d61f3913c3a1fe9967f4b7f04ee8288d4f14ce8c2ce369286dde00f759d2950fd54404635a18b32b336e4a60ea30df648df9314b5373be4ca4

Download Submit
memory/2448-14-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2448-11-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2448-12-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2448-18-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-2-0x0000000002210000-0x0000000002223000-memory.dmp

Filesize
76KB

Download
memory/2648-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-8-0x0000000002210000-0x0000000002223000-memory.dmp

Filesize
76KB

Download
memory/2648-7-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2648-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/4472-16-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/4472-13-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download
memory/4472-17-0x0000000000F80000-0x0000000000F95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads