tofsee | f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71

General

Target

JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe
Size

11.7MB
MD5

b8332866db45bf85ed517c599eaafe54
SHA1

f86726a6a85f613e15066a7ad77cef942e3c9d28
SHA256

f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71
SHA512

b95ac93c7487fada804562e98f8e5db4902ab3195236c71cfa171732071d4601ce479b6eed519f61a0724a47d6cda7f9d397285c265b2c9bfb7d143ba8ef1425
SSDEEP

3072:qoiqjV0QCeV75zMwb2EfDXTBrt0c5f+Z7ApWt+0krytpObPUfAGM4H1M4CjiJNx4:qoiqjWHeV9zthDjBrmA+VkDbSAgQiTx

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

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
3100	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\qlgarach\ImagePath = "C:\\Windows\\SysWOW64\\qlgarach\\puqigjv.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe

Deletes itself 1 IoCs

pid	Process
3792	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3968	puqigjv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3968 set thread context of 3792	3968	puqigjv.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1296	sc.exe
1420	sc.exe
1240	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 6 IoCs

pid	pid_target	Process	procid_target
2088	4744	WerFault.exe	82
2104	4744	WerFault.exe	82
3664	4744	WerFault.exe	82
2336	3968	WerFault.exe	93
3600	3968	WerFault.exe	93
4572	3968	WerFault.exe	93

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	puqigjv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 1204	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	83
PID 4744 wrote to memory of 1204	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	83
PID 4744 wrote to memory of 1204	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	83
PID 4744 wrote to memory of 1832	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	85
PID 4744 wrote to memory of 1832	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	85
PID 4744 wrote to memory of 1832	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	85
PID 4744 wrote to memory of 1420	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	87
PID 4744 wrote to memory of 1420	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	87
PID 4744 wrote to memory of 1420	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	87
PID 4744 wrote to memory of 1240	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	89
PID 4744 wrote to memory of 1240	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	89
PID 4744 wrote to memory of 1240	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	89
PID 4744 wrote to memory of 1296	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	91
PID 4744 wrote to memory of 1296	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	91
PID 4744 wrote to memory of 1296	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	91
PID 4744 wrote to memory of 3100	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	94
PID 4744 wrote to memory of 3100	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	94
PID 4744 wrote to memory of 3100	4744	JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe	94
PID 3968 wrote to memory of 3792	3968	puqigjv.exe	104
PID 3968 wrote to memory of 3792	3968	puqigjv.exe	104
PID 3968 wrote to memory of 3792	3968	puqigjv.exe	104
PID 3968 wrote to memory of 3792	3968	puqigjv.exe	104
PID 3968 wrote to memory of 3792	3968	puqigjv.exe	104

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qlgarach\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\puqigjv.exe" C:\Windows\SysWOW64\qlgarach\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qlgarach binPath= "C:\Windows\SysWOW64\qlgarach\puqigjv.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qlgarach "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qlgarach
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1296
- 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:3100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 1176
  2⤵
  - Program crash
  PID:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 644
  2⤵
  - Program crash
  PID:2104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 1044
  2⤵
  - Program crash
  PID:3664

C:\Windows\SysWOW64\qlgarach\puqigjv.exe
C:\Windows\SysWOW64\qlgarach\puqigjv.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b8332866db45bf85ed517c599eaafe54.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3968 -s 516
  2⤵
  - Program crash
  PID:2336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3968 -s 560
  2⤵
  - Program crash
  PID:3600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3968 -s 532
  2⤵
  - Program crash
  PID:4572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4744 -ip 4744
1⤵
PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4744 -ip 4744
1⤵
PID:4372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4744 -ip 4744
1⤵
PID:3724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3968 -ip 3968
1⤵
PID:2960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3968 -ip 3968
1⤵
PID:2136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3968 -ip 3968
1⤵
PID:5052

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\puqigjv.exe

Filesize
10.6MB

MD5
ac2e19994cfa858a84ebc7160d6d1fcb

SHA1
2b3e44a06a345497d2af5574504adb6928e380e5

SHA256
2d093efa0799afeed69e162fc3bfd1aafc706d00fc068f38f463a9ff34c63ef2

SHA512
b4ccbf1add97b7861bd74524901f2a21f0947332212765ebd9dcf1fc0f5c8ce9f2feeb8854d3371a6ffff4cca53bb2f7ef968b9aa0f3d81d158e9fbb286018fe

Download Submit
memory/3792-8-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3792-16-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3792-17-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3968-10-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/3968-14-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4744-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/4744-2-0x0000000000930000-0x0000000000943000-memory.dmp

Filesize
76KB

Download
memory/4744-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4744-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4744-11-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/4744-12-0x0000000000930000-0x0000000000943000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads