tofsee | c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29

General

Target

JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe
Size

164KB
MD5

c7d11c27167d0519c4411bcdd078cc4c
SHA1

f8784b1bc7526b9b93632add439fa5ec35763b76
SHA256

c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29
SHA512

1cba4254bc94cd83c8068eb82e9079f050f35a7305fb522dbb9389c10ce007705d67359d84d18fe31e1b10365d602d014df6fe7cfda242a42e3d78ea313a622d
SSDEEP

3072:d1umt9LLocCys0GOPHt3h4MNV/d5LN9NFHGhaS9H6l:dAmDLoWskhVNVh0haEa

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
3052	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\pyndvwse\ImagePath = "C:\\Windows\\SysWOW64\\pyndvwse\\frysxdqy.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe

Deletes itself 1 IoCs

pid	Process
4872	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	frysxdqy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 4872	2780	frysxdqy.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
1180	sc.exe
2152	sc.exe
4564	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
720	4860	WerFault.exe	82
968	2780	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	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	frysxdqy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 4360	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	83
PID 4860 wrote to memory of 4360	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	83
PID 4860 wrote to memory of 4360	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	83
PID 4860 wrote to memory of 1420	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	85
PID 4860 wrote to memory of 1420	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	85
PID 4860 wrote to memory of 1420	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	85
PID 4860 wrote to memory of 1180	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	87
PID 4860 wrote to memory of 1180	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	87
PID 4860 wrote to memory of 1180	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	87
PID 4860 wrote to memory of 2152	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	89
PID 4860 wrote to memory of 2152	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	89
PID 4860 wrote to memory of 2152	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	89
PID 4860 wrote to memory of 4564	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	91
PID 4860 wrote to memory of 4564	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	91
PID 4860 wrote to memory of 4564	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	91
PID 4860 wrote to memory of 3052	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	94
PID 4860 wrote to memory of 3052	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	94
PID 4860 wrote to memory of 3052	4860	JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe	94
PID 2780 wrote to memory of 4872	2780	frysxdqy.exe	100
PID 2780 wrote to memory of 4872	2780	frysxdqy.exe	100
PID 2780 wrote to memory of 4872	2780	frysxdqy.exe	100
PID 2780 wrote to memory of 4872	2780	frysxdqy.exe	100
PID 2780 wrote to memory of 4872	2780	frysxdqy.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pyndvwse\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\frysxdqy.exe" C:\Windows\SysWOW64\pyndvwse\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pyndvwse binPath= "C:\Windows\SysWOW64\pyndvwse\frysxdqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pyndvwse "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2152
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pyndvwse
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4564
- 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:3052
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1288
  2⤵
  - Program crash
  PID:720

C:\Windows\SysWOW64\pyndvwse\frysxdqy.exe
C:\Windows\SysWOW64\pyndvwse\frysxdqy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c14346a51b769881723edbcc73a54afe995c502898ba017424caaec560bd6c29.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 508
  2⤵
  - Program crash
  PID:968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4860 -ip 4860
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2780 -ip 2780
1⤵
PID:1888

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\frysxdqy.exe

Filesize
13.6MB

MD5
013f2a6a441db6eabf1d88fd52b97116

SHA1
cb90a7cf20a1752420857d54c76fe277e8d53e60

SHA256
bce82bf3629e79470716ab8ff1114f652f3146ebb9fc4db3b82ac13941fd5a14

SHA512
865b564aba103c7c07377d4570049ebb750da8e5add17efd001f945a6cbc651a879cbd9fbf04f6f322c0282545fd56ad4e3ebd34376c1e480df2130aa63fb005

Download Submit
memory/2780-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2780-13-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2780-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2780-19-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4860-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-2-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/4860-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4860-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4860-9-0x0000000000750000-0x0000000000763000-memory.dmp

Filesize
76KB

Download
memory/4860-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/4872-14-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/4872-16-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/4872-17-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads