tofsee | f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc

General

Target

JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe
Size

169KB
MD5

ef15323425a825ae51b50c25a08a1e97
SHA1

55b2b8dddadaa04c70de4d845b1ed344ebcacb28
SHA256

f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc
SHA512

f87b320591b6f98de12745daa0ca5abe2db8a991ad2e70aa7d74f8380241ed59c61b4d2e1dde9f0105e6068d0d12859d97c8669f84cb40c31aa4b73154cc7dd1
SSDEEP

3072:dINEppMfx/AvY+dRs/WiyvOKoGt/MR+Mc2:KNEppMfx/gLPsqvONAUR+s

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
1292	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\fsidyfqa\ImagePath = "C:\\Windows\\SysWOW64\\fsidyfqa\\vrgglsyp.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe

Deletes itself 1 IoCs

pid	Process
2540	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1484	vrgglsyp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1484 set thread context of 2540	1484	vrgglsyp.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
1792	sc.exe
4180	sc.exe
1152	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
3744	1484	WerFault.exe	92
4444	3156	WerFault.exe	81

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	vrgglsyp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 3556	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	82
PID 3156 wrote to memory of 3556	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	82
PID 3156 wrote to memory of 3556	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	82
PID 3156 wrote to memory of 3488	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	84
PID 3156 wrote to memory of 3488	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	84
PID 3156 wrote to memory of 3488	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	84
PID 3156 wrote to memory of 1792	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	86
PID 3156 wrote to memory of 1792	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	86
PID 3156 wrote to memory of 1792	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	86
PID 3156 wrote to memory of 4180	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	88
PID 3156 wrote to memory of 4180	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	88
PID 3156 wrote to memory of 4180	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	88
PID 3156 wrote to memory of 1152	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	90
PID 3156 wrote to memory of 1152	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	90
PID 3156 wrote to memory of 1152	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	90
PID 1484 wrote to memory of 2540	1484	vrgglsyp.exe	93
PID 1484 wrote to memory of 2540	1484	vrgglsyp.exe	93
PID 1484 wrote to memory of 2540	1484	vrgglsyp.exe	93
PID 1484 wrote to memory of 2540	1484	vrgglsyp.exe	93
PID 1484 wrote to memory of 2540	1484	vrgglsyp.exe	93
PID 3156 wrote to memory of 1292	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	95
PID 3156 wrote to memory of 1292	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	95
PID 3156 wrote to memory of 1292	3156	JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fsidyfqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vrgglsyp.exe" C:\Windows\SysWOW64\fsidyfqa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fsidyfqa binPath= "C:\Windows\SysWOW64\fsidyfqa\vrgglsyp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fsidyfqa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fsidyfqa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1152
- 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:1292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3156 -s 1204
  2⤵
  - Program crash
  PID:4444

C:\Windows\SysWOW64\fsidyfqa\vrgglsyp.exe
C:\Windows\SysWOW64\fsidyfqa\vrgglsyp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f56d18589d624660f6f60abaabe81a3714f6896df46080d42dbeb2e895f9e3fc.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 524
  2⤵
  - Program crash
  PID:3744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1484 -ip 1484
1⤵
PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3156 -ip 3156
1⤵
PID:832

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\vrgglsyp.exe

Filesize
12.8MB

MD5
590d013a06b63eed97a19e03d9b9c457

SHA1
bac07ee6770ff612b45103f6dee993954b4cf7b5

SHA256
e48d2af3ae468fa91aba74233f24952059dc774e719654341dafd49328a7cd2e

SHA512
8e4d6b70cb33129fa8b066c7e951ee2d7354cc34583badb4f0b5f5a57d587a59d8bbe71d9bedeef56118ecdf0aec1f4797d80797811f794cbc87c69d7cf551a5

Download Submit
memory/1484-7-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1484-14-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1484-8-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1484-6-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/2540-12-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2540-9-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2540-19-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2540-20-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/2540-21-0x0000000000CA0000-0x0000000000CB5000-memory.dmp

Filesize
84KB

Download
memory/3156-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3156-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3156-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3156-17-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/3156-15-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3156-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3156-16-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads