tofsee | 5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33

General

Target

JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe
Size

284KB
MD5

0b19b04338ddda5554112c86c5791684
SHA1

93cdd5161cb58122fc0edfe66a7af5b75a89ff4c
SHA256

5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33
SHA512

39fb27528029cd6664bd503625ef13f116dfea6353271bfebf74f69586e844153c0d8e8452acbf481b450fa511bd8a0ce4ed2f9995b40f57374394159879b6eb
SSDEEP

6144:uT5AEWRLSnPVskaD/gi4T9HROhxxpeTr/ekI:ulAvGnPSdDnzxp6L

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
1392	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\wcljclfn\ImagePath = "C:\\Windows\\SysWOW64\\wcljclfn\\qgbnhtxp.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe

Deletes itself 1 IoCs

pid	Process
2188	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	qgbnhtxp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 2188	1772	qgbnhtxp.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
800	sc.exe
2096	sc.exe
3804	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3024	4932	WerFault.exe	82
3080	1772	WerFault.exe	94

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	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	qgbnhtxp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4744	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	83
PID 4932 wrote to memory of 4744	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	83
PID 4932 wrote to memory of 4744	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	83
PID 4932 wrote to memory of 1048	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	85
PID 4932 wrote to memory of 1048	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	85
PID 4932 wrote to memory of 1048	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	85
PID 4932 wrote to memory of 800	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	88
PID 4932 wrote to memory of 800	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	88
PID 4932 wrote to memory of 800	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	88
PID 4932 wrote to memory of 2096	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	90
PID 4932 wrote to memory of 2096	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	90
PID 4932 wrote to memory of 2096	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	90
PID 4932 wrote to memory of 3804	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	92
PID 4932 wrote to memory of 3804	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	92
PID 4932 wrote to memory of 3804	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	92
PID 4932 wrote to memory of 1392	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	95
PID 4932 wrote to memory of 1392	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	95
PID 4932 wrote to memory of 1392	4932	JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe	95
PID 1772 wrote to memory of 2188	1772	qgbnhtxp.exe	101
PID 1772 wrote to memory of 2188	1772	qgbnhtxp.exe	101
PID 1772 wrote to memory of 2188	1772	qgbnhtxp.exe	101
PID 1772 wrote to memory of 2188	1772	qgbnhtxp.exe	101
PID 1772 wrote to memory of 2188	1772	qgbnhtxp.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wcljclfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qgbnhtxp.exe" C:\Windows\SysWOW64\wcljclfn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wcljclfn binPath= "C:\Windows\SysWOW64\wcljclfn\qgbnhtxp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wcljclfn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wcljclfn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3804
- 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:1392
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 888
  2⤵
  - Program crash
  PID:3024

C:\Windows\SysWOW64\wcljclfn\qgbnhtxp.exe
C:\Windows\SysWOW64\wcljclfn\qgbnhtxp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5f1de5ad55c9145f7d703b693ce532efad766fd47cbc10b87562d815c059ae33.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2188
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 512
  2⤵
  - Program crash
  PID:3080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4932 -ip 4932
1⤵
PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1772 -ip 1772
1⤵
PID:4512

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\qgbnhtxp.exe

Filesize
11.2MB

MD5
1bf91ed0b0b3368af8c34cb68d9506a4

SHA1
22a8310e89010270567c314fafca6d9a61d01197

SHA256
56ea6ec1db268fc9c16475bad6ba5976388c8c72165caa8c03ccd0c5c0edfc99

SHA512
7778740ec444803de64a2b3abb685c77aabaf1712d41a35861c63d441d891edb96dc713cb1da6b31752ec7bceb3be0a217e1e15cf0cb445ce1994de53628ef09

Download Submit
memory/1772-12-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1772-11-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1772-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/1772-19-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/2188-16-0x0000000000A40000-0x0000000000A55000-memory.dmp

Filesize
84KB

Download
memory/2188-15-0x0000000000A40000-0x0000000000A55000-memory.dmp

Filesize
84KB

Download
memory/2188-17-0x0000000000A40000-0x0000000000A55000-memory.dmp

Filesize
84KB

Download
memory/4932-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4932-1-0x0000000000550000-0x0000000000650000-memory.dmp

Filesize
1024KB

Download
memory/4932-8-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4932-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4932-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4932-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads