tofsee | 6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663

General

Target

JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe
Size

279KB
MD5

d32e3e8115f3c17716d37df5a2af78ee
SHA1

1a617fabdee37f4ac34c8e200b9e52268bf72c28
SHA256

6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663
SHA512

cf6a6518f00f4ad093c05e4ffb393ec7e02319a535d0c7fc4941894d90fece8fccb474c48cff6c9b26b440b16845a123b21aa689e2b2368a91e4c61c1a9ac5e3
SSDEEP

3072:e0Zpg7yAH/XDFeioco+MNF5+aBXIynv1VdzQyU2PkbZvUJKYg4Fx2d01Duw92u0U:Atop+MFNVGSkbuJTh2dyyj

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
1912	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\zolptacs\ImagePath = "C:\\Windows\\SysWOW64\\zolptacs\\fyjzkhat.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_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe

Deletes itself 1 IoCs

pid	Process
3256	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2556	fyjzkhat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 3256	2556	fyjzkhat.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
3252	sc.exe
4712	sc.exe
4240	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
4556	2932	WerFault.exe	82
4080	2556	WerFault.exe	95

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fyjzkhat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 1468	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	83
PID 2932 wrote to memory of 1468	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	83
PID 2932 wrote to memory of 1468	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	83
PID 2932 wrote to memory of 3228	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	85
PID 2932 wrote to memory of 3228	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	85
PID 2932 wrote to memory of 3228	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	85
PID 2932 wrote to memory of 3252	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	87
PID 2932 wrote to memory of 3252	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	87
PID 2932 wrote to memory of 3252	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	87
PID 2932 wrote to memory of 4712	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	89
PID 2932 wrote to memory of 4712	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	89
PID 2932 wrote to memory of 4712	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	89
PID 2932 wrote to memory of 4240	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	93
PID 2932 wrote to memory of 4240	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	93
PID 2932 wrote to memory of 4240	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	93
PID 2932 wrote to memory of 1912	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	96
PID 2932 wrote to memory of 1912	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	96
PID 2932 wrote to memory of 1912	2932	JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe	96
PID 2556 wrote to memory of 3256	2556	fyjzkhat.exe	104
PID 2556 wrote to memory of 3256	2556	fyjzkhat.exe	104
PID 2556 wrote to memory of 3256	2556	fyjzkhat.exe	104
PID 2556 wrote to memory of 3256	2556	fyjzkhat.exe	104
PID 2556 wrote to memory of 3256	2556	fyjzkhat.exe	104

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zolptacs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1468
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fyjzkhat.exe" C:\Windows\SysWOW64\zolptacs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zolptacs binPath= "C:\Windows\SysWOW64\zolptacs\fyjzkhat.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3252
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zolptacs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zolptacs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4240
- 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:1912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 1044
  2⤵
  - Program crash
  PID:4556

C:\Windows\SysWOW64\zolptacs\fyjzkhat.exe
C:\Windows\SysWOW64\zolptacs\fyjzkhat.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f116c643fbb82bbfd2cb550b35d446b55038c234b191c8b75a43612effc6663.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3256
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 516
  2⤵
  - Program crash
  PID:4080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2932 -ip 2932
1⤵
PID:2036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2556 -ip 2556
1⤵
PID:2872

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\fyjzkhat.exe

Filesize
13.4MB

MD5
31a81bd7535e61cf95a49c4163cd4b12

SHA1
91ddf5d2d654c913e6a6ae07101a7c030e1f6e35

SHA256
bc237bafded6bbef4560d61e35a4b709bd77e558f69c259ceba2c4883f48a3c6

SHA512
32492826c3bedfb0024b5eafe88bc46570905bc30000ef7f578700ddf8382a20bc20aaaf3bd451512cf7e0b7407b3b03622e6daa98db868aaf7c9149f59d2513

Download Submit
memory/2556-15-0x0000000000400000-0x0000000002B40000-memory.dmp

Filesize
39.2MB

Download
memory/2932-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

Filesize
1024KB

Download
memory/2932-2-0x0000000002CA0000-0x0000000002CB3000-memory.dmp

Filesize
76KB

Download
memory/2932-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2932-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2932-8-0x0000000002CA0000-0x0000000002CB3000-memory.dmp

Filesize
76KB

Download
memory/2932-7-0x0000000000400000-0x0000000002B40000-memory.dmp

Filesize
39.2MB

Download
memory/3256-11-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download
memory/3256-13-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download
memory/3256-14-0x0000000000BE0000-0x0000000000BF5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads