tofsee | 5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5

General

Target

5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe
Size

13.3MB
MD5

3b04b6eae24e67d0164af3b3e083da8e
SHA1

646af8bcc69301c0e1d2da9b2e36a1304ffaa786
SHA256

5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5
SHA512

6200e767e2c65a4eb102e7cb086525b74691f9b5a5f16196136a68060ed66e1442d9d106c3c7b17ccc21b52b1ff77f855e2749a0ec87aa5eb6e33be7ccb74ccb
SSDEEP

98304:jRooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo9:A

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.ru

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
812	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\nlyzorp\ImagePath = "C:\\Windows\\SysWOW64\\nlyzorp\\flgjsbbw.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe

Deletes itself 1 IoCs

pid	Process
4784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3124	flgjsbbw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3124 set thread context of 4784	3124	flgjsbbw.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
912	sc.exe
748	sc.exe
1968	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
2668	400	WerFault.exe	82
4124	3124	WerFault.exe	100

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	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	flgjsbbw.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 3500	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	83
PID 400 wrote to memory of 3500	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	83
PID 400 wrote to memory of 3500	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	83
PID 400 wrote to memory of 1712	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	85
PID 400 wrote to memory of 1712	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	85
PID 400 wrote to memory of 1712	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	85
PID 400 wrote to memory of 912	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	90
PID 400 wrote to memory of 912	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	90
PID 400 wrote to memory of 912	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	90
PID 400 wrote to memory of 748	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	92
PID 400 wrote to memory of 748	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	92
PID 400 wrote to memory of 748	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	92
PID 400 wrote to memory of 1968	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	97
PID 400 wrote to memory of 1968	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	97
PID 400 wrote to memory of 1968	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	97
PID 400 wrote to memory of 812	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	101
PID 400 wrote to memory of 812	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	101
PID 400 wrote to memory of 812	400	5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe	101
PID 3124 wrote to memory of 4784	3124	flgjsbbw.exe	107
PID 3124 wrote to memory of 4784	3124	flgjsbbw.exe	107
PID 3124 wrote to memory of 4784	3124	flgjsbbw.exe	107
PID 3124 wrote to memory of 4784	3124	flgjsbbw.exe	107
PID 3124 wrote to memory of 4784	3124	flgjsbbw.exe	107

C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe
"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nlyzorp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\flgjsbbw.exe" C:\Windows\SysWOW64\nlyzorp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nlyzorp binPath= "C:\Windows\SysWOW64\nlyzorp\flgjsbbw.exe /d\"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:912
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nlyzorp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nlyzorp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1968
- 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:812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 1032
  2⤵
  - Program crash
  PID:2668

C:\Windows\SysWOW64\nlyzorp\flgjsbbw.exe
C:\Windows\SysWOW64\nlyzorp\flgjsbbw.exe /d"C:\Users\Admin\AppData\Local\Temp\5e9350587e873fdbf01b1698a64fd03fa7988d212d23bc767471379a220c4cd5.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3124 -s 528
  2⤵
  - Program crash
  PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 400 -ip 400
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3124 -ip 3124
1⤵
PID:2476

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\flgjsbbw.exe

Filesize
10.9MB

MD5
6b0e14b2d5f24165655c77973dad90f2

SHA1
ae145022b2602f6e9eb69b2aa8ec6b808d9821c1

SHA256
4d12cb21116822a32bd74326ec3d195ad6e5a4f85b500cdede2238323891b625

SHA512
4d2aae456f8f1a97341d8bf7a72387ab602090bdefe1409d1c40c0ddf114e9550becae82c3450cb02c44e503cc287135a2cf36ae6a70ed79045839d23d9a3d24

Download Submit
memory/400-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/400-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/400-8-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/400-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/400-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3124-11-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/3124-12-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/3124-19-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/3124-13-0x0000000000400000-0x00000000004AC000-memory.dmp

Filesize
688KB

Download
memory/4784-17-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/4784-16-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/4784-14-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads