tofsee | 153625180da77e381c9dfaab2a933696c94bec49e898c0a3294b0180d568792d

General

Target

e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe
Size

13.9MB
MD5

e8ed9b7f958491838d2b52374770643c
SHA1

9980920c4ac6fd5310370dcc8c08ba36c08a8cb0
SHA256

153625180da77e381c9dfaab2a933696c94bec49e898c0a3294b0180d568792d
SHA512

0ab01fe58edb208ba742199584374e274ebff97e163dc1a1f5545a00de9351468aff085c6fb22055ce99f4bbe9e7829050a139e46bd9892f4bf96cc106510452
SSDEEP

12288:NZq+cdlGKSEdlGfxl5V/ZAMbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:Nk9dVcl5V/Z

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\esswmqhw = "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

Processes:

netsh.exe

pid process

2768 netsh.exe

pid	process
2768	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\esswmqhw\ImagePath = "C:\\Windows\\SysWOW64\\esswmqhw\\tfmglrem.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2820 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tfmglrem.exe

pid process

2776 tfmglrem.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tfmglrem.exe

description pid process target process

PID 2776 set thread context of 2820 2776 tfmglrem.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2292 sc.exe
2764 sc.exe
2872 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2820	svchost.exe

pid	process
2776	tfmglrem.exe

description	pid	process	target process
PID 2776 set thread context of 2820	2776	tfmglrem.exe	svchost.exe

pid	process
2292	sc.exe
2764	sc.exe
2872	sc.exe

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

Processes:

netsh.exe

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

Processes:

sc.exesc.exesc.execmd.execmd.exenetsh.exetfmglrem.exesvchost.exee8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe

description	ioc	process
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	sc.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tfmglrem.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exetfmglrem.exe

description	pid	process	target process
PID 1728 wrote to memory of 2312	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2312	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2312	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2312	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2260	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2260	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2260	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2260	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	cmd.exe
PID 1728 wrote to memory of 2292	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2292	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2292	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2292	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2764	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2764	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2764	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2764	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2872	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2872	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2872	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2872	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	sc.exe
PID 1728 wrote to memory of 2768	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	netsh.exe
PID 1728 wrote to memory of 2768	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	netsh.exe
PID 1728 wrote to memory of 2768	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	netsh.exe
PID 1728 wrote to memory of 2768	1728	e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe	netsh.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe
PID 2776 wrote to memory of 2820	2776	tfmglrem.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\esswmqhw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tfmglrem.exe" C:\Windows\SysWOW64\esswmqhw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create esswmqhw binPath= "C:\Windows\SysWOW64\esswmqhw\tfmglrem.exe /d\"C:\Users\Admin\AppData\Local\Temp\e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description esswmqhw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start esswmqhw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- 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:2768

C:\Windows\SysWOW64\esswmqhw\tfmglrem.exe
C:\Windows\SysWOW64\esswmqhw\tfmglrem.exe /d"C:\Users\Admin\AppData\Local\Temp\e8ed9b7f958491838d2b52374770643c_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2820

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

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\tfmglrem.exe

Filesize
12.7MB

MD5
8848b3c963730f173f3a35ea5d18cd04

SHA1
3d9dfe3e66d9b962e7637145299318e4713029db

SHA256
4456877597c567bea21d1ae49bb11a71b05886caed6c454c000a9a9bebd708ae

SHA512
090e22a6cb489114c5e4f643567105b54217b31082daf476c9905929c24c9a4f60439bfac01e27d4cea008694a559202a4fd4f471816d6715c901861dda56d34

Download Submit
memory/1728-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1728-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1728-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1728-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1728-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1728-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2776-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2820-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads