tofsee | 74529db33360427d99adc6bf7612de131512a168d53545f358493792d5ee730b

General

Target

1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe
Size

13.2MB
MD5

1f6b89b430e231b22fcc8e9031cd0307
SHA1

e712dd589e73cf6ad5a6eb4d8afa9e84885a0983
SHA256

74529db33360427d99adc6bf7612de131512a168d53545f358493792d5ee730b
SHA512

3dbe60bb5bab9337b23f159b3553e6fe2cb17c292d8af06a13bb943b3a07ca100eaddc8f0ddd4826efde73185174de7d0caaee06966256b45f15d1e9d7b9da6e
SSDEEP

6144:BrZQVnJzxj5nP76vk7wQ6udJm1lzvGCUWlnpj:dZ2zxj5nPmRQ6QgjzOCnl

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

3284 netsh.exe

pid	process
3284	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\eueerqhv\ImagePath = "C:\\Windows\\SysWOW64\\eueerqhv\\qxvglgui.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:

1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4744 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

qxvglgui.exe

pid process

3588 qxvglgui.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

qxvglgui.exe

description pid process target process

PID 3588 set thread context of 4744 3588 qxvglgui.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

4128 sc.exe
5072 sc.exe
3164 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4744	svchost.exe

pid	process
3588	qxvglgui.exe

description	pid	process	target process
PID 3588 set thread context of 4744	3588	qxvglgui.exe	svchost.exe

pid	process
4128	sc.exe
5072	sc.exe
3164	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

1604 452 WerFault.exe 1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe
2704 3588 WerFault.exe qxvglgui.exe

pid	pid_target	process	target process
1604	452	WerFault.exe	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe
2704	3588	WerFault.exe	qxvglgui.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:

netsh.exeqxvglgui.exesvchost.exesc.exesc.execmd.exesc.exe1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qxvglgui.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exeqxvglgui.exe

description	pid	process	target process
PID 452 wrote to memory of 2988	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 2988	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 2988	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 2240	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 2240	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 2240	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	cmd.exe
PID 452 wrote to memory of 4128	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 4128	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 4128	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 5072	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 5072	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 5072	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 3164	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 3164	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 3164	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	sc.exe
PID 452 wrote to memory of 3284	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	netsh.exe
PID 452 wrote to memory of 3284	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	netsh.exe
PID 452 wrote to memory of 3284	452	1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe	netsh.exe
PID 3588 wrote to memory of 4744	3588	qxvglgui.exe	svchost.exe
PID 3588 wrote to memory of 4744	3588	qxvglgui.exe	svchost.exe
PID 3588 wrote to memory of 4744	3588	qxvglgui.exe	svchost.exe
PID 3588 wrote to memory of 4744	3588	qxvglgui.exe	svchost.exe
PID 3588 wrote to memory of 4744	3588	qxvglgui.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eueerqhv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe" C:\Windows\SysWOW64\eueerqhv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2240
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eueerqhv binPath= "C:\Windows\SysWOW64\eueerqhv\qxvglgui.exe /d\"C:\Users\Admin\AppData\Local\Temp\1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eueerqhv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eueerqhv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3164
- 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:3284
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 1160
  2⤵
  - Program crash
  PID:1604

C:\Windows\SysWOW64\eueerqhv\qxvglgui.exe
C:\Windows\SysWOW64\eueerqhv\qxvglgui.exe /d"C:\Users\Admin\AppData\Local\Temp\1f6b89b430e231b22fcc8e9031cd0307_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4744
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 528
  2⤵
  - Program crash
  PID:2704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 452 -ip 452
1⤵
PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3588 -ip 3588
1⤵
PID:4780

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\qxvglgui.exe

Filesize
11.6MB

MD5
15dc2352424404b3462287a72324fbbe

SHA1
6d1d44aa4ae2f663b0849359751ca833ddf13958

SHA256
1ac452ced7131ecdf789d7b2df67cdc826b9ab9cb2906d33f496434059797d12

SHA512
88bc4452fe68b0df40110439e2e9e6df3a88d9b8706d6017f56dc24c5b93f2f793ee717998d6276f33ca19a10163184a61d2b40f53439606e10e3f2b424da6a2

Download Submit
memory/452-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/452-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/452-2-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/452-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/452-9-0x0000000000580000-0x0000000000593000-memory.dmp

Filesize
76KB

Download
memory/452-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/3588-11-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3588-12-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3588-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/4744-13-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/4744-15-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download
memory/4744-16-0x0000000000590000-0x00000000005A5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads