tofsee | 2128c7ae82349263682d6a3206cc97b040c42e0e5d4424d2306ee30bb1b83de8

General

Target

7f0e78e68cad738676174e178952d043_JaffaCakes118.exe
Size

12.1MB
MD5

7f0e78e68cad738676174e178952d043
SHA1

f556a4c8ac98946b375f444f564f795474326632
SHA256

2128c7ae82349263682d6a3206cc97b040c42e0e5d4424d2306ee30bb1b83de8
SHA512

a2842f581e993dd6170a402ae6425ead4ad22eacecfec09fdae8575194b8f09fcc420970809dbf936945a0e13b3c935caab9867bc24d8ee5adc64680bf26c018
SSDEEP

393216:9IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIv:

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

4752 netsh.exe

pid	process
4752	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\kxnntiky\ImagePath = "C:\\Windows\\SysWOW64\\kxnntiky\\ayiggwfv.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:

7f0e78e68cad738676174e178952d043_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3228 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ayiggwfv.exe

pid process

904 ayiggwfv.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ayiggwfv.exe

description pid process target process

PID 904 set thread context of 3228 904 ayiggwfv.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

3448 sc.exe
528 sc.exe
2552 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3228	svchost.exe

pid	process
904	ayiggwfv.exe

description	pid	process	target process
PID 904 set thread context of 3228	904	ayiggwfv.exe	svchost.exe

pid	process
3448	sc.exe
528	sc.exe
2552	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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3912 4296 WerFault.exe 7f0e78e68cad738676174e178952d043_JaffaCakes118.exe
4788 904 WerFault.exe ayiggwfv.exe

pid	pid_target	process	target process
3912	4296	WerFault.exe	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe
4788	904	WerFault.exe	ayiggwfv.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:

svchost.execmd.exesc.exesc.exenetsh.exeayiggwfv.exe7f0e78e68cad738676174e178952d043_JaffaCakes118.execmd.exesc.exe

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	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	ayiggwfv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

7f0e78e68cad738676174e178952d043_JaffaCakes118.exeayiggwfv.exe

description	pid	process	target process
PID 4296 wrote to memory of 3060	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 3060	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 3060	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 404	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 404	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 404	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	cmd.exe
PID 4296 wrote to memory of 3448	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 3448	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 3448	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 528	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 528	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 528	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 2552	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 2552	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 2552	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	sc.exe
PID 4296 wrote to memory of 4752	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	netsh.exe
PID 4296 wrote to memory of 4752	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	netsh.exe
PID 4296 wrote to memory of 4752	4296	7f0e78e68cad738676174e178952d043_JaffaCakes118.exe	netsh.exe
PID 904 wrote to memory of 3228	904	ayiggwfv.exe	svchost.exe
PID 904 wrote to memory of 3228	904	ayiggwfv.exe	svchost.exe
PID 904 wrote to memory of 3228	904	ayiggwfv.exe	svchost.exe
PID 904 wrote to memory of 3228	904	ayiggwfv.exe	svchost.exe
PID 904 wrote to memory of 3228	904	ayiggwfv.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\7f0e78e68cad738676174e178952d043_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7f0e78e68cad738676174e178952d043_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kxnntiky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ayiggwfv.exe" C:\Windows\SysWOW64\kxnntiky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kxnntiky binPath= "C:\Windows\SysWOW64\kxnntiky\ayiggwfv.exe /d\"C:\Users\Admin\AppData\Local\Temp\7f0e78e68cad738676174e178952d043_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kxnntiky "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kxnntiky
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2552
- 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:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1176
  2⤵
  - Program crash
  PID:3912

C:\Windows\SysWOW64\kxnntiky\ayiggwfv.exe
C:\Windows\SysWOW64\kxnntiky\ayiggwfv.exe /d"C:\Users\Admin\AppData\Local\Temp\7f0e78e68cad738676174e178952d043_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3228
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 520
  2⤵
  - Program crash
  PID:4788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4296 -ip 4296
1⤵
PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 904 -ip 904
1⤵
PID:1896

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\ayiggwfv.exe

Filesize
13.8MB

MD5
d62900501429d8bed7775b742f6dc0ce

SHA1
4143007395cb0365cc0486a8e860d48dde8409f9

SHA256
d17a5370a118106d0ab1dd1c2fceafe1968dae6edd12c9a953ccb6483dc5433e

SHA512
484ca94dd46b8cf3c5e1688cf420a2f046e58f8e44aaa1b2ce7c9993afc3407cdf4c70334d350e60119bfcb41ec736ff3e16d24474e3a601b39f94c86df2329d

Download Submit
memory/904-13-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/904-12-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/904-11-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/904-18-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/3228-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3228-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3228-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4296-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4296-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4296-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4296-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4296-8-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4296-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads