tofsee | 16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71

General

Target

JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe
Size

238KB
MD5

04aad3afb392a73a20d30113627a0904
SHA1

c2858ee930d3aa39e130379941a16596ee42583a
SHA256

16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71
SHA512

f1197d7e87109c72b74d9a993b0e83635a217bc69bafecadc21db11d67bcd81c1579f364270e3839e9ef787f8c37a300c7ac37ec0e71da1e03cc9bb2e43536e2
SSDEEP

6144:hX2ED6j2X7Q9pnpY5kdQElH7ITsq7igavwVf:hX246iX7QdY5kd979

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
5064	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\hzolfsyv\ImagePath = "C:\\Windows\\SysWOW64\\hzolfsyv\\unyozwpi.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe

Deletes itself 1 IoCs

pid	Process
3696	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4592	unyozwpi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4592 set thread context of 3696	4592	unyozwpi.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1588	sc.exe
4576	sc.exe
2616	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1548	2844	WerFault.exe	81
1960	4592	WerFault.exe	92

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	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.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	unyozwpi.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 1640	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	82
PID 2844 wrote to memory of 1640	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	82
PID 2844 wrote to memory of 1640	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	82
PID 2844 wrote to memory of 2348	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	84
PID 2844 wrote to memory of 2348	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	84
PID 2844 wrote to memory of 2348	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	84
PID 2844 wrote to memory of 1588	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	86
PID 2844 wrote to memory of 1588	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	86
PID 2844 wrote to memory of 1588	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	86
PID 2844 wrote to memory of 4576	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	88
PID 2844 wrote to memory of 4576	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	88
PID 2844 wrote to memory of 4576	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	88
PID 2844 wrote to memory of 2616	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	90
PID 2844 wrote to memory of 2616	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	90
PID 2844 wrote to memory of 2616	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	90
PID 2844 wrote to memory of 5064	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	93
PID 2844 wrote to memory of 5064	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	93
PID 2844 wrote to memory of 5064	2844	JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe	93
PID 4592 wrote to memory of 3696	4592	unyozwpi.exe	98
PID 4592 wrote to memory of 3696	4592	unyozwpi.exe	98
PID 4592 wrote to memory of 3696	4592	unyozwpi.exe	98
PID 4592 wrote to memory of 3696	4592	unyozwpi.exe	98
PID 4592 wrote to memory of 3696	4592	unyozwpi.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hzolfsyv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\unyozwpi.exe" C:\Windows\SysWOW64\hzolfsyv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create hzolfsyv binPath= "C:\Windows\SysWOW64\hzolfsyv\unyozwpi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description hzolfsyv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start hzolfsyv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2616
- 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:5064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 1040
  2⤵
  - Program crash
  PID:1548

C:\Windows\SysWOW64\hzolfsyv\unyozwpi.exe
C:\Windows\SysWOW64\hzolfsyv\unyozwpi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_16df6cea6c715d967ae63d6b5558eb3d3d1b1b1d758d31ea76d2dc81673b1f71.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4592 -s 508
  2⤵
  - Program crash
  PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2844 -ip 2844
1⤵
PID:4952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4592 -ip 4592
1⤵
PID:3372

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\unyozwpi.exe

Filesize
13.0MB

MD5
2c813f7395c7ab88c0b62425988dbbef

SHA1
f193eb06779b386dc7ee9a4641a7a708844369b7

SHA256
b971b7d33da5fae57848a471bf8bd98c0f480536a500add188a925014f709598

SHA512
c16e63a527a174161831794759a477e4f282af3d56db725ff6d02b34ea299169195c9906ec114255cb0f30e4e1a2c688a99b041eaf6656d95481ecdbeda21c83

Download Submit
memory/2844-7-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/2844-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-1-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/2844-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2844-8-0x0000000000700000-0x0000000000713000-memory.dmp

Filesize
76KB

Download
memory/2844-0-0x00000000006F0000-0x00000000006FD000-memory.dmp

Filesize
52KB

Download
memory/2844-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3696-12-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/3696-14-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/3696-15-0x0000000000A30000-0x0000000000A45000-memory.dmp

Filesize
84KB

Download
memory/4592-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4592-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4592-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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