tofsee | e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87

General

Target

JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe
Size

243KB
MD5

efb9c0c07fd0dac85d7d7f2366c1cd94
SHA1

92e07b8e7566aa83a096f566070dd5a9d0469b1a
SHA256

e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87
SHA512

360c1a9b5261fdc3088da3feb28df8866b7f4a5e09ea9e5b66362bee0bc3858620ddeebf0c0f04e3c6fe90068945eab513ff21e6113302363139197bac20325a
SSDEEP

6144:pnZQZPsbbeUbJ676nG7zMjAcuLngy0sXt4Q7Gk:JZTbeUbJ6mAMjT3y0sXKQ

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
4628	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\pstonixg\ImagePath = "C:\\Windows\\SysWOW64\\pstonixg\\tadbccsg.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe

Deletes itself 1 IoCs

pid	Process
4248	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1160	tadbccsg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1160 set thread context of 4248	1160	tadbccsg.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3608	sc.exe
4796	sc.exe
2180	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
2988	3644	WerFault.exe	81
3432	1160	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	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tadbccsg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 3068	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	82
PID 3644 wrote to memory of 3068	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	82
PID 3644 wrote to memory of 3068	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	82
PID 3644 wrote to memory of 4384	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	84
PID 3644 wrote to memory of 4384	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	84
PID 3644 wrote to memory of 4384	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	84
PID 3644 wrote to memory of 3608	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	86
PID 3644 wrote to memory of 3608	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	86
PID 3644 wrote to memory of 3608	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	86
PID 3644 wrote to memory of 4796	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	88
PID 3644 wrote to memory of 4796	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	88
PID 3644 wrote to memory of 4796	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	88
PID 3644 wrote to memory of 2180	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	90
PID 3644 wrote to memory of 2180	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	90
PID 3644 wrote to memory of 2180	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	90
PID 3644 wrote to memory of 4628	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	93
PID 3644 wrote to memory of 4628	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	93
PID 3644 wrote to memory of 4628	3644	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	93
PID 1160 wrote to memory of 4248	1160	tadbccsg.exe	98
PID 1160 wrote to memory of 4248	1160	tadbccsg.exe	98
PID 1160 wrote to memory of 4248	1160	tadbccsg.exe	98
PID 1160 wrote to memory of 4248	1160	tadbccsg.exe	98
PID 1160 wrote to memory of 4248	1160	tadbccsg.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pstonixg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tadbccsg.exe" C:\Windows\SysWOW64\pstonixg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pstonixg binPath= "C:\Windows\SysWOW64\pstonixg\tadbccsg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pstonixg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pstonixg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2180
- 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:4628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 1036
  2⤵
  - Program crash
  PID:2988

C:\Windows\SysWOW64\pstonixg\tadbccsg.exe
C:\Windows\SysWOW64\pstonixg\tadbccsg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4248
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1160 -s 528
  2⤵
  - Program crash
  PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3644 -ip 3644
1⤵
PID:3592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 1160 -ip 1160
1⤵
PID:1876

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\tadbccsg.exe

Filesize
11.0MB

MD5
1d951ab711d0fe33813177d3964b00cb

SHA1
f83bb25473332ccfad7b097367e2ccf6876d9dce

SHA256
68810a566461d99d95899da3e5044507ac21402ab7b45990802722ab9949c9bd

SHA512
238515994837f92e4b71780f45e5c610f5e3358b1e83e01919cca42ee816c3f4c5245475b593e1b4c62a856b090a8f86755e55c112bf0b28bb9ef893063ca6b3

Download Submit
memory/1160-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1160-18-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/1160-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3644-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3644-9-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/3644-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/3644-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3644-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4248-13-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/4248-15-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/4248-16-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads