tofsee | be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529

General

Target

JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe
Size

337KB
MD5

691f941752cc0aeb2aa2c47b09940dd5
SHA1

d94c0a393249605f798b9fcdc2fa91ac3993b20f
SHA256

be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529
SHA512

efe42c9a85b8fd32880fe8ace8e3680171c292d84c69dc2dfcab74fcda4fb02b96f41634ba138fd59b3ea6141bc8ba71dcc3ba6bbc032bb279c12f6bf8aae1e7
SSDEEP

6144:v5+ign4C0SRg7rBxkxIQpZk/GfpyNTjS9OnFK5GEm9VHg5:0t3NRCrBa2QpZk/U0JS9OnFMm9

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
1032	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\qrnhcdoi\ImagePath = "C:\\Windows\\SysWOW64\\qrnhcdoi\\vsdigqnk.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe

Deletes itself 1 IoCs

pid	Process
4120	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2768	vsdigqnk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2768 set thread context of 4120	2768	vsdigqnk.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2364	sc.exe
3284	sc.exe
3620	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
948	4028	WerFault.exe	81
2600	2768	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	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.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	vsdigqnk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 4280	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	82
PID 4028 wrote to memory of 4280	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	82
PID 4028 wrote to memory of 4280	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	82
PID 4028 wrote to memory of 4852	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	84
PID 4028 wrote to memory of 4852	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	84
PID 4028 wrote to memory of 4852	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	84
PID 4028 wrote to memory of 3284	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	86
PID 4028 wrote to memory of 3284	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	86
PID 4028 wrote to memory of 3284	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	86
PID 4028 wrote to memory of 3620	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	88
PID 4028 wrote to memory of 3620	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	88
PID 4028 wrote to memory of 3620	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	88
PID 4028 wrote to memory of 2364	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	92
PID 4028 wrote to memory of 2364	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	92
PID 4028 wrote to memory of 2364	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	92
PID 4028 wrote to memory of 1032	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	95
PID 4028 wrote to memory of 1032	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	95
PID 4028 wrote to memory of 1032	4028	JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe	95
PID 2768 wrote to memory of 4120	2768	vsdigqnk.exe	101
PID 2768 wrote to memory of 4120	2768	vsdigqnk.exe	101
PID 2768 wrote to memory of 4120	2768	vsdigqnk.exe	101
PID 2768 wrote to memory of 4120	2768	vsdigqnk.exe	101
PID 2768 wrote to memory of 4120	2768	vsdigqnk.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qrnhcdoi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vsdigqnk.exe" C:\Windows\SysWOW64\qrnhcdoi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qrnhcdoi binPath= "C:\Windows\SysWOW64\qrnhcdoi\vsdigqnk.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qrnhcdoi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qrnhcdoi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2364
- 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:1032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 1040
  2⤵
  - Program crash
  PID:948

C:\Windows\SysWOW64\qrnhcdoi\vsdigqnk.exe
C:\Windows\SysWOW64\qrnhcdoi\vsdigqnk.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_be6c4755fa925ffa4250cf9e05a299ac9f146e892246f8843cc61ae29d59e529.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 512
  2⤵
  - Program crash
  PID:2600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4028 -ip 4028
1⤵
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2768 -ip 2768
1⤵
PID:2428

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\vsdigqnk.exe

Filesize
11.1MB

MD5
e3443e9aa1554c46aa1d017d6eef5eb1

SHA1
50dbfd890a2341ec361ad02902dcb227fadff562

SHA256
310bf560aa2f99f7bbd493f4ea884e1027e6e4d88bed8abb58ff673cbcf25545

SHA512
1122404141194eb8aa8b2e2db6bd5b49751cb064eff074df0c379cb8af3efd8f6d414660e83e077a03f796ca0cac99e79b42260b278b36937330aa0abbf5c0e4

Download Submit
memory/2768-15-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/4028-1-0x0000000002B50000-0x0000000002C50000-memory.dmp

Filesize
1024KB

Download
memory/4028-2-0x0000000004740000-0x0000000004753000-memory.dmp

Filesize
76KB

Download
memory/4028-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4028-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4028-8-0x0000000004740000-0x0000000004753000-memory.dmp

Filesize
76KB

Download
memory/4028-7-0x0000000000400000-0x0000000002B4C000-memory.dmp

Filesize
39.3MB

Download
memory/4120-11-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/4120-13-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/4120-14-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads