tofsee | 0548cb99d5e3f66650abba816c4a0f2e175eec00a79dbf0d72ad4732f84423cb

General

Target

JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe
Size

11.9MB
MD5

3f292c43499ee4ba98361c0f1b365a33
SHA1

0d835ff79890f1269674a1c6e25ca3b926bfe726
SHA256

0548cb99d5e3f66650abba816c4a0f2e175eec00a79dbf0d72ad4732f84423cb
SHA512

40f35639e5fd4a398ae5a722e5731747c65293c18e103a0987af86b1bc67bdb0f7f0cba87753a490ea50cfb512afb2c89e32eeb42ab7db97e51f5e753224c2ec
SSDEEP

6144:kU7GjEC3ezR7ba5Kr6zFIKBQG18IAHORqctttttttttttttttttttttttttttttH:kU7nZzRva51z2G18IAHeq

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
1212	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\zvwhbhln\ImagePath = "C:\\Windows\\SysWOW64\\zvwhbhln\\lqaqej.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_3f292c43499ee4ba98361c0f1b365a33.exe

Deletes itself 1 IoCs

pid	Process
4800	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	lqaqej.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3932 set thread context of 4800	3932	lqaqej.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4856	sc.exe
4760	sc.exe
2796	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
1576	4560	WerFault.exe	81
3100	3932	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	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	lqaqej.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.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 4560 wrote to memory of 1000	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	82
PID 4560 wrote to memory of 1000	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	82
PID 4560 wrote to memory of 1000	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	82
PID 4560 wrote to memory of 4840	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	84
PID 4560 wrote to memory of 4840	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	84
PID 4560 wrote to memory of 4840	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	84
PID 4560 wrote to memory of 4856	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	86
PID 4560 wrote to memory of 4856	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	86
PID 4560 wrote to memory of 4856	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	86
PID 4560 wrote to memory of 4760	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	88
PID 4560 wrote to memory of 4760	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	88
PID 4560 wrote to memory of 4760	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	88
PID 4560 wrote to memory of 2796	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	90
PID 4560 wrote to memory of 2796	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	90
PID 4560 wrote to memory of 2796	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	90
PID 4560 wrote to memory of 1212	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	93
PID 4560 wrote to memory of 1212	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	93
PID 4560 wrote to memory of 1212	4560	JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe	93
PID 3932 wrote to memory of 4800	3932	lqaqej.exe	98
PID 3932 wrote to memory of 4800	3932	lqaqej.exe	98
PID 3932 wrote to memory of 4800	3932	lqaqej.exe	98
PID 3932 wrote to memory of 4800	3932	lqaqej.exe	98
PID 3932 wrote to memory of 4800	3932	lqaqej.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zvwhbhln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lqaqej.exe" C:\Windows\SysWOW64\zvwhbhln\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zvwhbhln binPath= "C:\Windows\SysWOW64\zvwhbhln\lqaqej.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zvwhbhln "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zvwhbhln
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- 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:1212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 1044
  2⤵
  - Program crash
  PID:1576

C:\Windows\SysWOW64\zvwhbhln\lqaqej.exe
C:\Windows\SysWOW64\zvwhbhln\lqaqej.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3f292c43499ee4ba98361c0f1b365a33.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4800
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3932 -s 516
  2⤵
  - Program crash
  PID:3100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4560 -ip 4560
1⤵
PID:532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3932 -ip 3932
1⤵
PID:1304

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\lqaqej.exe

Filesize
13.6MB

MD5
947b7190b01c168840a9ff0b4104bffb

SHA1
d19376d689bcb3a9fa96495890cc47f68593ff92

SHA256
5cbe46549e16fea660e6e7bf81d80db3f82f88c6c025c18ab2a6bd55c9ff19d2

SHA512
9b741dcdc4c72b822b870b0d1b0d22b85a950dc8f3f010fec27100c2b18c83adbebf2c9b5911328146a7bc83129d6ce02f68d5f3827b70af60b4b8a7708800d0

Download Submit
memory/3932-15-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/3932-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/3932-14-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/4560-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/4560-9-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/4560-1-0x00000000016C0000-0x00000000017C0000-memory.dmp

Filesize
1024KB

Download
memory/4560-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4560-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4560-2-0x0000000003400000-0x0000000003413000-memory.dmp

Filesize
76KB

Download
memory/4800-11-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4800-13-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download
memory/4800-16-0x0000000000D90000-0x0000000000DA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads