tofsee | edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a

General

Target

JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe
Size

234KB
MD5

23c4dddcbb1118afe8e89be556182646
SHA1

fbda92dcf9cabd1f106d6315a064756cd7bd8494
SHA256

edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a
SHA512

06cd65c7a3d8b4cf63d9898c578a5527dd96222669789e3973d17b3446a4c6bdf0af5ef7a28d8ea6de10fc4e8923542bfbabad481c9490de291b930f97c384be
SSDEEP

6144:eZRil6yHn3xm61E1jhPUn6CHuzbgwujigaLwVf:eZRioyH3xm6+Cn6CHunnb

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
1176	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\qyuhnqbi\ImagePath = "C:\\Windows\\SysWOW64\\qyuhnqbi\\hzryxozg.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe

Deletes itself 1 IoCs

pid	Process
4684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4816	hzryxozg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4816 set thread context of 4684	4816	hzryxozg.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4564	sc.exe
3416	sc.exe
5068	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 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

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hzryxozg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 3080	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	83
PID 4944 wrote to memory of 3080	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	83
PID 4944 wrote to memory of 3080	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	83
PID 4944 wrote to memory of 2292	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	85
PID 4944 wrote to memory of 2292	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	85
PID 4944 wrote to memory of 2292	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	85
PID 4944 wrote to memory of 4564	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	87
PID 4944 wrote to memory of 4564	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	87
PID 4944 wrote to memory of 4564	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	87
PID 4944 wrote to memory of 3416	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	89
PID 4944 wrote to memory of 3416	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	89
PID 4944 wrote to memory of 3416	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	89
PID 4944 wrote to memory of 5068	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	92
PID 4944 wrote to memory of 5068	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	92
PID 4944 wrote to memory of 5068	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	92
PID 4944 wrote to memory of 1176	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	95
PID 4944 wrote to memory of 1176	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	95
PID 4944 wrote to memory of 1176	4944	JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe	95
PID 4816 wrote to memory of 4684	4816	hzryxozg.exe	97
PID 4816 wrote to memory of 4684	4816	hzryxozg.exe	97
PID 4816 wrote to memory of 4684	4816	hzryxozg.exe	97
PID 4816 wrote to memory of 4684	4816	hzryxozg.exe	97
PID 4816 wrote to memory of 4684	4816	hzryxozg.exe	97

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qyuhnqbi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hzryxozg.exe" C:\Windows\SysWOW64\qyuhnqbi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qyuhnqbi binPath= "C:\Windows\SysWOW64\qyuhnqbi\hzryxozg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qyuhnqbi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3416
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qyuhnqbi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5068
- 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:1176

C:\Windows\SysWOW64\qyuhnqbi\hzryxozg.exe
C:\Windows\SysWOW64\qyuhnqbi\hzryxozg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_edf91adac029089d20ecaa12dfaf37aa6f30048fc11dbc94ab22c2fe16eaf72a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4684

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\hzryxozg.exe

Filesize
10.6MB

MD5
c8523aed50f20e018be94495899a9df6

SHA1
1a26a9e0a33c17aa7b2dcfd6baca1d26ff2fa094

SHA256
c8cfce336581bf7f406bb8d14365307cff9149cc43fccece250ad0b70f51e002

SHA512
c04002607f6facfa524539f90b11f479ce379015307e786926902dd3fcb2782ed996fa7d0c5b595e837faa1316472130ab967cd599dba1727b6e8112b6416a5b

Download Submit
memory/4684-13-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4684-21-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4684-20-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4684-19-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4684-16-0x0000000000920000-0x0000000000935000-memory.dmp

Filesize
84KB

Download
memory/4816-11-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4816-10-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4816-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4816-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4944-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4944-0-0x00000000005F0000-0x00000000005FD000-memory.dmp

Filesize
52KB

Download
memory/4944-7-0x00000000005F0000-0x00000000005FD000-memory.dmp

Filesize
52KB

Download
memory/4944-8-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/4944-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4944-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads