tofsee | 1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743

General

Target

JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe
Size

179KB
MD5

37caa50c2b1a0f550713ad0ce57ed4c3
SHA1

fde0402254f3c57b10d6789d3b537761999db2c3
SHA256

1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743
SHA512

9b468657c7d7b40092784a3ab8f29ebcd2261d23bcebc97cdbda7eb31ade40ad6c74120b3c9bb54ebea6d01e1afe295d252dfcc0a4b0eaa6759514bd9e6f1278
SSDEEP

3072:I744SpmfTOqHl4KkmSVtDzuzWcGZQ6bna6lBYS8jesCq2q5py:HmfTO0gmSVlnxPBQdn2W

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
2804	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\kbltskrc\ImagePath = "C:\\Windows\\SysWOW64\\kbltskrc\\wyshdzvm.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe

Deletes itself 1 IoCs

pid	Process
4664	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	wyshdzvm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 4664	2728	wyshdzvm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1304	sc.exe
1576	sc.exe
836	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
1572	1320	WerFault.exe	82
964	2728	WerFault.exe	93

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_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.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	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	wyshdzvm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 3656	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	83
PID 1320 wrote to memory of 3656	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	83
PID 1320 wrote to memory of 3656	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	83
PID 1320 wrote to memory of 4188	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	85
PID 1320 wrote to memory of 4188	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	85
PID 1320 wrote to memory of 4188	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	85
PID 1320 wrote to memory of 1576	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	87
PID 1320 wrote to memory of 1576	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	87
PID 1320 wrote to memory of 1576	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	87
PID 1320 wrote to memory of 836	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	89
PID 1320 wrote to memory of 836	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	89
PID 1320 wrote to memory of 836	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	89
PID 1320 wrote to memory of 1304	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	91
PID 1320 wrote to memory of 1304	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	91
PID 1320 wrote to memory of 1304	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	91
PID 1320 wrote to memory of 2804	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	94
PID 1320 wrote to memory of 2804	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	94
PID 1320 wrote to memory of 2804	1320	JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe	94
PID 2728 wrote to memory of 4664	2728	wyshdzvm.exe	98
PID 2728 wrote to memory of 4664	2728	wyshdzvm.exe	98
PID 2728 wrote to memory of 4664	2728	wyshdzvm.exe	98
PID 2728 wrote to memory of 4664	2728	wyshdzvm.exe	98
PID 2728 wrote to memory of 4664	2728	wyshdzvm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kbltskrc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wyshdzvm.exe" C:\Windows\SysWOW64\kbltskrc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4188
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kbltskrc binPath= "C:\Windows\SysWOW64\kbltskrc\wyshdzvm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1576
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kbltskrc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kbltskrc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1304
- 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:2804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 680
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\kbltskrc\wyshdzvm.exe
C:\Windows\SysWOW64\kbltskrc\wyshdzvm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1078eb65f6461d85120c9d42fb09b04c88f11254bacb55c0735ce1125d4e2743.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4664
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2728 -s 552
  2⤵
  - Program crash
  PID:964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1320 -ip 1320
1⤵
PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 2728 -ip 2728
1⤵
PID:2516

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\wyshdzvm.exe

Filesize
12.2MB

MD5
1c8fea3dc402864a222ef3ee1294e851

SHA1
103e017ba96c871202137b4a0c6ddedd02769cc2

SHA256
cb18e43d61b6cce6989903cc8ff96647b6c6c0636ffc56380e8d328fee845dc2

SHA512
5cedb3060c8115e31cbae5d976578deb87c90244cce7f0c9529919c333f787afa1325f35448682f286852117a019af68c865ec21c94626f7563ad4c3f90f66b4

Download Submit
memory/1320-14-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/1320-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1320-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1320-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/1320-16-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/1320-15-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/1320-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2728-6-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2728-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2728-7-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4664-11-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/4664-8-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/4664-18-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/4664-19-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download
memory/4664-20-0x00000000007C0000-0x00000000007D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads