tofsee | d882cf922ed49c5c66a23925d4c102a3ca158adc11dcdabd18c0439fd8bc787b

General

Target

2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
Size

11.0MB
MD5

2205ae0550b6a87f8198eeb63ddd82e5
SHA1

a4998cdd345d3763d89860241e55d318053605bd
SHA256

d882cf922ed49c5c66a23925d4c102a3ca158adc11dcdabd18c0439fd8bc787b
SHA512

e072de29ba82eef07ec403c73062d2a6c066aeedcb9861e5c2cd55917a076f3c2b07d152164ec2bcc68a2b5b6d9d94928768392234bd0b37959e467f1e8a268b
SSDEEP

196608:gYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYX:gYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYX

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
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

Processes:

netsh.exe

pid process

552 netsh.exe

pid	process
552	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\qdgbhrng\ImagePath = "C:\\Windows\\SysWOW64\\qdgbhrng\\qfsoazse.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

Processes:

2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1720 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qfsoazse.exe

pid process

4984 qfsoazse.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qfsoazse.exe

description pid process target process

PID 4984 set thread context of 1720 4984 qfsoazse.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

4620 sc.exe
3836 sc.exe
4428 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1720	svchost.exe

pid	process
4984	qfsoazse.exe

description	pid	process	target process
PID 4984 set thread context of 1720	4984	qfsoazse.exe	svchost.exe

pid	process
4620	sc.exe
3836	sc.exe
4428	sc.exe

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

Processes:

netsh.exe

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

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1644 376 WerFault.exe 2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
1888 4984 WerFault.exe qfsoazse.exe

pid	pid_target	process	target process
1644	376	WerFault.exe	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
1888	4984	WerFault.exe	qfsoazse.exe

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

Processes:

sc.exeqfsoazse.exesc.execmd.execmd.exesc.exenetsh.exesvchost.exe2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qfsoazse.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	cmd.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exeqfsoazse.exe

description	pid	process	target process
PID 376 wrote to memory of 3868	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 3868	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 3868	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 1316	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 1316	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 1316	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	cmd.exe
PID 376 wrote to memory of 4428	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 4428	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 4428	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 4620	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 4620	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 4620	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 3836	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 3836	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 3836	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	sc.exe
PID 376 wrote to memory of 552	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 376 wrote to memory of 552	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 376 wrote to memory of 552	376	2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe	netsh.exe
PID 4984 wrote to memory of 1720	4984	qfsoazse.exe	svchost.exe
PID 4984 wrote to memory of 1720	4984	qfsoazse.exe	svchost.exe
PID 4984 wrote to memory of 1720	4984	qfsoazse.exe	svchost.exe
PID 4984 wrote to memory of 1720	4984	qfsoazse.exe	svchost.exe
PID 4984 wrote to memory of 1720	4984	qfsoazse.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qdgbhrng\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qfsoazse.exe" C:\Windows\SysWOW64\qdgbhrng\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1316
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qdgbhrng binPath= "C:\Windows\SysWOW64\qdgbhrng\qfsoazse.exe /d\"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qdgbhrng "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4620
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qdgbhrng
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3836
- 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:552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 376 -s 1044
  2⤵
  - Program crash
  PID:1644

C:\Windows\SysWOW64\qdgbhrng\qfsoazse.exe
C:\Windows\SysWOW64\qdgbhrng\qfsoazse.exe /d"C:\Users\Admin\AppData\Local\Temp\2205ae0550b6a87f8198eeb63ddd82e5_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 516
  2⤵
  - Program crash
  PID:1888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 376 -ip 376
1⤵
PID:3308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4984 -ip 4984
1⤵
PID:3240

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\qfsoazse.exe

Filesize
11.3MB

MD5
fd04c66608a44f4979c17f7aa2b7b6f6

SHA1
903d6c81f2dcf3a4f5ab86389aa5ddd8b809ca20

SHA256
2e18a69132230cd24795c4b2a812cf5b7d8e6051918998777ba558268d9bbb65

SHA512
87e9d678ded130353291d6e8c2910648a53d17905a14856122a402187ee3e8ce9471b7a5c1b7ad59c343a8673c6a14bca75c5f83c5956e981f1e5ddcbda1bf4b

Download Submit
memory/376-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/376-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/376-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/376-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/376-9-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/376-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/1720-14-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/1720-16-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/1720-17-0x0000000000B70000-0x0000000000B85000-memory.dmp

Filesize
84KB

Download
memory/4984-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4984-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4984-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4984-19-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads