tofsee | c5982c660c33b116a63036a6df243f3093da33639542b76ae9870163e046f0ca

General

Target

JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe
Size

13.2MB
MD5

05d588b52f6f5afd60121a0dd91860ec
SHA1

2a39717941dd6c7ff0f6ee5a57f3eed0c400e940
SHA256

c5982c660c33b116a63036a6df243f3093da33639542b76ae9870163e046f0ca
SHA512

a1891e5d0b691c280f49dc44ae020a2303edb127c1449c17c8beaa8aa78a7e2334695990618b1de866069e4dba7eab376780427b63a2091673418104979bd69f
SSDEEP

196608:SxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxJ:

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
4476	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\jlmvmded\ImagePath = "C:\\Windows\\SysWOW64\\jlmvmded\\qvusioxm.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe

Deletes itself 1 IoCs

pid	Process
1104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	qvusioxm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5048 set thread context of 1104	5048	qvusioxm.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4508	sc.exe
4832	sc.exe
2952	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
4532	2732	WerFault.exe	81
4932	5048	WerFault.exe	92

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qvusioxm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.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 2732 wrote to memory of 2900	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	82
PID 2732 wrote to memory of 2900	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	82
PID 2732 wrote to memory of 2900	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	82
PID 2732 wrote to memory of 4964	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	84
PID 2732 wrote to memory of 4964	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	84
PID 2732 wrote to memory of 4964	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	84
PID 2732 wrote to memory of 4508	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	86
PID 2732 wrote to memory of 4508	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	86
PID 2732 wrote to memory of 4508	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	86
PID 2732 wrote to memory of 4832	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	88
PID 2732 wrote to memory of 4832	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	88
PID 2732 wrote to memory of 4832	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	88
PID 2732 wrote to memory of 2952	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	90
PID 2732 wrote to memory of 2952	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	90
PID 2732 wrote to memory of 2952	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	90
PID 2732 wrote to memory of 4476	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	93
PID 2732 wrote to memory of 4476	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	93
PID 2732 wrote to memory of 4476	2732	JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe	93
PID 5048 wrote to memory of 1104	5048	qvusioxm.exe	98
PID 5048 wrote to memory of 1104	5048	qvusioxm.exe	98
PID 5048 wrote to memory of 1104	5048	qvusioxm.exe	98
PID 5048 wrote to memory of 1104	5048	qvusioxm.exe	98
PID 5048 wrote to memory of 1104	5048	qvusioxm.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jlmvmded\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qvusioxm.exe" C:\Windows\SysWOW64\jlmvmded\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jlmvmded binPath= "C:\Windows\SysWOW64\jlmvmded\qvusioxm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jlmvmded "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jlmvmded
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2952
- 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:4476
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2732 -s 1036
  2⤵
  - Program crash
  PID:4532

C:\Windows\SysWOW64\jlmvmded\qvusioxm.exe
C:\Windows\SysWOW64\jlmvmded\qvusioxm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05d588b52f6f5afd60121a0dd91860ec.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:1104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 516
  2⤵
  - Program crash
  PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2732 -ip 2732
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5048 -ip 5048
1⤵
PID:2304

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\qvusioxm.exe

Filesize
13.5MB

MD5
9e8fbeb830d5acfe112fd0261b427e96

SHA1
141570b39820f539a9c04b11188e68f84750b907

SHA256
ca9faa9a4522271f55b3c52843a4847c910500a7140772c23a10f884558f9e33

SHA512
bce60e6a5d04b19147e9be5dae06ffe5ab191eba1701bcccc392b774e6e33b3774246c48184b8c2fa24f07c33e4c9051935a25ad0f7cf45b0a837bcc6b283565

Download Submit
memory/1104-10-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/1104-12-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/1104-13-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/2732-0-0x0000000003170000-0x000000000317D000-memory.dmp

Filesize
52KB

Download
memory/2732-1-0x0000000004C60000-0x0000000004C73000-memory.dmp

Filesize
76KB

Download
memory/2732-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2732-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2732-6-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download
memory/2732-7-0x0000000003170000-0x000000000317D000-memory.dmp

Filesize
52KB

Download
memory/2732-8-0x0000000004C60000-0x0000000004C73000-memory.dmp

Filesize
76KB

Download
memory/5048-14-0x0000000000400000-0x0000000002F06000-memory.dmp

Filesize
43.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads