tofsee | f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87

General

Target

JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe
Size

300KB
MD5

604765a96ab3f9265808926f38ebdd83
SHA1

7e5bbe686a922f9cd9cd5288676e332cc9d0f201
SHA256

f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87
SHA512

12497ef1c6134b135f0fe2073f1738229dc8d56eda9b5c3489514305773339e18806b5174a0b5c4cf8ee43df5c6cf00f4a19ee58829163af59c3c1afcdc26668
SSDEEP

6144:wZTYSSgfeAkpENPp0RnjB9/XK50ppPQiMjQ+T95:wVYSS2kyp0RnHK50bPQHQ+x

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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

pid	Process
4916	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\httpogjy\ImagePath = "C:\\Windows\\SysWOW64\\httpogjy\\ysqklaix.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe

Deletes itself 1 IoCs

pid	Process
232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	ysqklaix.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4696 set thread context of 232	4696	ysqklaix.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4688	sc.exe
3772	sc.exe
112	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
5040	3672	WerFault.exe	82
224	4696	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ysqklaix.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 3896	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	83
PID 3672 wrote to memory of 3896	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	83
PID 3672 wrote to memory of 3896	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	83
PID 3672 wrote to memory of 2200	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	85
PID 3672 wrote to memory of 2200	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	85
PID 3672 wrote to memory of 2200	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	85
PID 3672 wrote to memory of 4688	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	87
PID 3672 wrote to memory of 4688	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	87
PID 3672 wrote to memory of 4688	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	87
PID 3672 wrote to memory of 3772	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	89
PID 3672 wrote to memory of 3772	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	89
PID 3672 wrote to memory of 3772	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	89
PID 3672 wrote to memory of 112	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	92
PID 3672 wrote to memory of 112	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	92
PID 3672 wrote to memory of 112	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	92
PID 3672 wrote to memory of 4916	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	95
PID 3672 wrote to memory of 4916	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	95
PID 3672 wrote to memory of 4916	3672	JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe	95
PID 4696 wrote to memory of 232	4696	ysqklaix.exe	101
PID 4696 wrote to memory of 232	4696	ysqklaix.exe	101
PID 4696 wrote to memory of 232	4696	ysqklaix.exe	101
PID 4696 wrote to memory of 232	4696	ysqklaix.exe	101
PID 4696 wrote to memory of 232	4696	ysqklaix.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\httpogjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ysqklaix.exe" C:\Windows\SysWOW64\httpogjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create httpogjy binPath= "C:\Windows\SysWOW64\httpogjy\ysqklaix.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description httpogjy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start httpogjy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:112
- 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:4916
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 1036
  2⤵
  - Program crash
  PID:5040

C:\Windows\SysWOW64\httpogjy\ysqklaix.exe
C:\Windows\SysWOW64\httpogjy\ysqklaix.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f9de99091686d9eef552541313e7b4b987819f3d6cd4ee2c7144d49dbaa15c87.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4696 -s 512
  2⤵
  - Program crash
  PID:224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3672 -ip 3672
1⤵
PID:4976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4696 -ip 4696
1⤵
PID:4612

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\ysqklaix.exe

Filesize
14.2MB

MD5
4c6c8123c1b0728862fbd9ac797ec1df

SHA1
232c747b981ccb35f4fcddb2348ab71b91aabb9d

SHA256
9e647c2ef20a50213c1037e74c1c4e731f593ce86432b385b9a65f37d90a01fa

SHA512
4a3f0b1b1a683c56be50132f79774a918672f78cc90603f0f83be7211fcdfef1aec1fef10435b2f325d6f0c97b4efc44e3afd5e8948349dbd486caaa486adcbd

Download Submit
memory/232-13-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/232-15-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/232-16-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/3672-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3672-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3672-8-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/3672-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3672-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3672-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/4696-11-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/4696-12-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/4696-18-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads