tofsee | ee3e70cbecce8d6441bf0ab40c6e8c9b6bd25766ec39831de257ba1bf4d373c1

General

Target

79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
Size

12.6MB
MD5

79e24581526ffc14f107bb3bc28ff108
SHA1

2ca1b6f5fc30878238ccf481acd095d51b430c8e
SHA256

ee3e70cbecce8d6441bf0ab40c6e8c9b6bd25766ec39831de257ba1bf4d373c1
SHA512

5bef24d5305d930875422a1eb974a4d533b097a466251dda0ef5882237a09a0767df7815861f58da0e8c2fa07178358593b113a5a05a068997663e4e94fbb841
SSDEEP

49152:mGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGD:

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
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

Processes:

netsh.exe

pid process

4104 netsh.exe

pid	process
4104	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\jepcgwby\ImagePath = "C:\\Windows\\SysWOW64\\jepcgwby\\dbqcwsdt.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

Processes:

79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4208 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

dbqcwsdt.exe

pid process

4784 dbqcwsdt.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

dbqcwsdt.exe

description pid process target process

PID 4784 set thread context of 4208 4784 dbqcwsdt.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

4436 sc.exe
3044 sc.exe
2532 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4208	svchost.exe

pid	process
4784	dbqcwsdt.exe

description	pid	process	target process
PID 4784 set thread context of 4208	4784	dbqcwsdt.exe	svchost.exe

pid	process
4436	sc.exe
3044	sc.exe
2532	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

2436 2256 WerFault.exe 79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
2568 4784 WerFault.exe dbqcwsdt.exe

pid	pid_target	process	target process
2436	2256	WerFault.exe	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
2568	4784	WerFault.exe	dbqcwsdt.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.exenetsh.exedbqcwsdt.execmd.exesc.exesc.exesvchost.exe79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.execmd.exe

description	ioc	process
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	dbqcwsdt.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exedbqcwsdt.exe

description	pid	process	target process
PID 2256 wrote to memory of 2284	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 2284	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 2284	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 2440	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 2440	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 2440	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	cmd.exe
PID 2256 wrote to memory of 4436	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 4436	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 4436	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 3044	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 3044	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 3044	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 2532	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 2532	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 2532	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	sc.exe
PID 2256 wrote to memory of 4104	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 2256 wrote to memory of 4104	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 2256 wrote to memory of 4104	2256	79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe	netsh.exe
PID 4784 wrote to memory of 4208	4784	dbqcwsdt.exe	svchost.exe
PID 4784 wrote to memory of 4208	4784	dbqcwsdt.exe	svchost.exe
PID 4784 wrote to memory of 4208	4784	dbqcwsdt.exe	svchost.exe
PID 4784 wrote to memory of 4208	4784	dbqcwsdt.exe	svchost.exe
PID 4784 wrote to memory of 4208	4784	dbqcwsdt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jepcgwby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dbqcwsdt.exe" C:\Windows\SysWOW64\jepcgwby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jepcgwby binPath= "C:\Windows\SysWOW64\jepcgwby\dbqcwsdt.exe /d\"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jepcgwby "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jepcgwby
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2532
- 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:4104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2256 -s 676
  2⤵
  - Program crash
  PID:2436

C:\Windows\SysWOW64\jepcgwby\dbqcwsdt.exe
C:\Windows\SysWOW64\jepcgwby\dbqcwsdt.exe /d"C:\Users\Admin\AppData\Local\Temp\79e24581526ffc14f107bb3bc28ff108_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 508
  2⤵
  - Program crash
  PID:2568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2256 -ip 2256
1⤵
PID:4012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4784 -ip 4784
1⤵
PID:3092

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\dbqcwsdt.exe

Filesize
13.4MB

MD5
02dc6e947ec5bf80b7462efd018e51f4

SHA1
8d16ae9ffe6b2621347cb64262e6fbbc9ba9aa99

SHA256
825b14cf71f04c419626acea6d50eaa613b288732942368bf06fbadbdf8f6fde

SHA512
3dddf28394588f413443e3d63635c11e97003efb065e5c982efdb57ed91e9c5fea0a54c5915810799b8e87bee01c85795e9e43d07ca1840a6f03f3d74530a3b6

Download Submit
memory/2256-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2256-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2256-2-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/2256-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2256-9-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/2256-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/4208-14-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/4208-16-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/4208-17-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/4784-12-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4784-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4784-13-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4784-19-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads