tofsee | a6bffcb4a9a7eb5cab0789e497350262ba9ced233acb1ca2d598f756e7e47289

General

Target

JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe
Size

332KB
MD5

fef1dddddde5a01cd2ed74e6c031bd23
SHA1

38a3ed6a45566821ffdb0e13558d0869f4fec077
SHA256

a6bffcb4a9a7eb5cab0789e497350262ba9ced233acb1ca2d598f756e7e47289
SHA512

0711a792ff2824e0e244d7dcf16dc92cf97d34d0c9a56f62f00fbe9e670a11923f7e7c822bdb5a6e73159bd8459a2a115d84140c606acd1e706bd931621db905
SSDEEP

6144:qutIFH/0RO0uydH3+BmV4gOj/Tz707JLEB8yA1muSE9jl+:qutIFfqVdH3+BmOBj/n70Fm8HmPi+

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
2732	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\vcjjcpmi\ImagePath = "C:\\Windows\\SysWOW64\\vcjjcpmi\\moixtplc.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe

Deletes itself 1 IoCs

pid	Process
4404	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	moixtplc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 4404	5048	moixtplc.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
888	sc.exe
4536	sc.exe
4136	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1356	4020	WerFault.exe	82
2956	5048	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	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	moixtplc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 408	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	83
PID 4020 wrote to memory of 408	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	83
PID 4020 wrote to memory of 408	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	83
PID 4020 wrote to memory of 2892	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	85
PID 4020 wrote to memory of 2892	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	85
PID 4020 wrote to memory of 2892	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	85
PID 4020 wrote to memory of 888	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	87
PID 4020 wrote to memory of 888	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	87
PID 4020 wrote to memory of 888	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	87
PID 4020 wrote to memory of 4536	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	90
PID 4020 wrote to memory of 4536	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	90
PID 4020 wrote to memory of 4536	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	90
PID 4020 wrote to memory of 4136	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	92
PID 4020 wrote to memory of 4136	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	92
PID 4020 wrote to memory of 4136	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	92
PID 4020 wrote to memory of 2732	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	95
PID 4020 wrote to memory of 2732	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	95
PID 4020 wrote to memory of 2732	4020	JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe	95
PID 5048 wrote to memory of 4404	5048	moixtplc.exe	101
PID 5048 wrote to memory of 4404	5048	moixtplc.exe	101
PID 5048 wrote to memory of 4404	5048	moixtplc.exe	101
PID 5048 wrote to memory of 4404	5048	moixtplc.exe	101
PID 5048 wrote to memory of 4404	5048	moixtplc.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vcjjcpmi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\moixtplc.exe" C:\Windows\SysWOW64\vcjjcpmi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vcjjcpmi binPath= "C:\Windows\SysWOW64\vcjjcpmi\moixtplc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vcjjcpmi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vcjjcpmi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4136
- 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:2732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 1044
  2⤵
  - Program crash
  PID:1356

C:\Windows\SysWOW64\vcjjcpmi\moixtplc.exe
C:\Windows\SysWOW64\vcjjcpmi\moixtplc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fef1dddddde5a01cd2ed74e6c031bd23.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 516
  2⤵
  - Program crash
  PID:2956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4020 -ip 4020
1⤵
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 5048 -ip 5048
1⤵
PID:1368

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\moixtplc.exe

Filesize
12.5MB

MD5
3f4eaa0db15a4b836a2eb878f848948a

SHA1
1e3469b191e03f2afa866d8a727448777ce3f47c

SHA256
7b6e3c6c1425b647138ed7322cef03feb2a8be23cef521ae8e82e39b8954a843

SHA512
546cfbe8dfdc7b6171b77627adae1f98d44390c1e1380013db5687841f37387d5fba423742d38d0342f9524609c8db75352eb81fdafa6684e92191dc70191396

Download Submit
memory/4020-2-0x0000000002390000-0x00000000023A3000-memory.dmp

Filesize
76KB

Download
memory/4020-1-0x00000000009A0000-0x0000000000AA0000-memory.dmp

Filesize
1024KB

Download
memory/4020-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4020-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4020-9-0x0000000002390000-0x00000000023A3000-memory.dmp

Filesize
76KB

Download
memory/4020-8-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/4404-12-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/4404-14-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/4404-15-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/5048-11-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/5048-16-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads