tofsee | 94fcc1fdb0ae7b98b9cd743cc107e8b7cfe7acc2ee8332f8422753d1d8907dba

General

Target

JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe
Size

15.0MB
MD5

44aff61225dc93f5a33a145a34b1f6e3
SHA1

54fac1b15397d5bba2eedd6ba52f67f6a9ff8f7c
SHA256

94fcc1fdb0ae7b98b9cd743cc107e8b7cfe7acc2ee8332f8422753d1d8907dba
SHA512

9273a73af5944438ee9256ad8d1a6de06eab470613df248c84322f8b58916a895ad364323f996b06f5597a0b46da343306b540f6acac5fef0c4d96139e0f2992
SSDEEP

3072:baS38GobyuzWzZOOUzjxrQGoLYs4ztTuG0AywlGuupORqJVOB2jLE5zfcLlJXSMZ:WSsfbyuRzZQn0Fzt28q+ZULfi

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
2044	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\bfugubmv\ImagePath = "C:\\Windows\\SysWOW64\\bfugubmv\\nhqanqvh.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe

Deletes itself 1 IoCs

pid	Process
3852	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
912	nhqanqvh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 912 set thread context of 3852	912	nhqanqvh.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1160	sc.exe
4232	sc.exe
4800	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2748	2472	WerFault.exe	81
5076	912	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_44aff61225dc93f5a33a145a34b1f6e3.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
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	nhqanqvh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 3392	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	82
PID 2472 wrote to memory of 3392	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	82
PID 2472 wrote to memory of 3392	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	82
PID 2472 wrote to memory of 3168	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	84
PID 2472 wrote to memory of 3168	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	84
PID 2472 wrote to memory of 3168	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	84
PID 2472 wrote to memory of 1160	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	86
PID 2472 wrote to memory of 1160	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	86
PID 2472 wrote to memory of 1160	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	86
PID 2472 wrote to memory of 4232	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	88
PID 2472 wrote to memory of 4232	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	88
PID 2472 wrote to memory of 4232	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	88
PID 2472 wrote to memory of 4800	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	90
PID 2472 wrote to memory of 4800	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	90
PID 2472 wrote to memory of 4800	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	90
PID 2472 wrote to memory of 2044	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	93
PID 2472 wrote to memory of 2044	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	93
PID 2472 wrote to memory of 2044	2472	JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe	93
PID 912 wrote to memory of 3852	912	nhqanqvh.exe	98
PID 912 wrote to memory of 3852	912	nhqanqvh.exe	98
PID 912 wrote to memory of 3852	912	nhqanqvh.exe	98
PID 912 wrote to memory of 3852	912	nhqanqvh.exe	98
PID 912 wrote to memory of 3852	912	nhqanqvh.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bfugubmv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nhqanqvh.exe" C:\Windows\SysWOW64\bfugubmv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bfugubmv binPath= "C:\Windows\SysWOW64\bfugubmv\nhqanqvh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bfugubmv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bfugubmv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4800
- 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:2044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 1036
  2⤵
  - Program crash
  PID:2748

C:\Windows\SysWOW64\bfugubmv\nhqanqvh.exe
C:\Windows\SysWOW64\bfugubmv\nhqanqvh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_44aff61225dc93f5a33a145a34b1f6e3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:912
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 520
  2⤵
  - Program crash
  PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2472 -ip 2472
1⤵
PID:2568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 912 -ip 912
1⤵
PID:544

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\nhqanqvh.exe

Filesize
12.7MB

MD5
631a4438806ad94a67efe5ee2095c204

SHA1
9fadb2e838204c31c4872e255b1d9c35b4a145f4

SHA256
d61b5a87261d60b4d110d65248621655025d6ccfaf05e7d1de18262e5d2d413f

SHA512
041ba36f6f0e6a4c2ce8a7615323ce1bc12ac343f59ebe7ca202d15ac74bdb87e358800a02663935993ca4c9f049528dfe097478339c81fe631afb26c0e13d7f

Download Submit
memory/912-15-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/2472-2-0x0000000002D20000-0x0000000002D33000-memory.dmp

Filesize
76KB

Download
memory/2472-1-0x0000000002E10000-0x0000000002F10000-memory.dmp

Filesize
1024KB

Download
memory/2472-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-9-0x0000000002D20000-0x0000000002D33000-memory.dmp

Filesize
76KB

Download
memory/2472-8-0x0000000000400000-0x0000000002B90000-memory.dmp

Filesize
39.6MB

Download
memory/3852-11-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/3852-13-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/3852-14-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads