tofsee | ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72

General

Target

JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe
Size

240KB
MD5

e18f55416688875bd059aa78bad93fc5
SHA1

4b3c98a0eede1f6d9c3641f41ad5bcdef901430f
SHA256

ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72
SHA512

6eda58d760b9cf68dc61441899bf3a7427c3eda588d18db1b27fba90536d69c0b3b19c66221a43c2097b6bb58bfd5a8a3bce695d62dfee5f76f5ad588b89a6a7
SSDEEP

3072:kItj9qmR1YGra4etPzs+0aIC7yKzbaBwNrrFpxf8cd/J5obromE9QsPB:kgJFYGrTwzsyKwhFpxfLFH9rP

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
4836	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\ufdowymo\ImagePath = "C:\\Windows\\SysWOW64\\ufdowymo\\bzoauqbr.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_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe

Deletes itself 1 IoCs

pid	Process
2936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3468	bzoauqbr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3468 set thread context of 2936	3468	bzoauqbr.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4156	sc.exe
1336	sc.exe
4884	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
4936	4868	WerFault.exe	84
3228	3468	WerFault.exe	96

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	bzoauqbr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4868 wrote to memory of 3616	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	85
PID 4868 wrote to memory of 3616	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	85
PID 4868 wrote to memory of 3616	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	85
PID 4868 wrote to memory of 5060	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	87
PID 4868 wrote to memory of 5060	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	87
PID 4868 wrote to memory of 5060	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	87
PID 4868 wrote to memory of 1336	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	89
PID 4868 wrote to memory of 1336	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	89
PID 4868 wrote to memory of 1336	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	89
PID 4868 wrote to memory of 4884	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	92
PID 4868 wrote to memory of 4884	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	92
PID 4868 wrote to memory of 4884	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	92
PID 4868 wrote to memory of 4156	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	94
PID 4868 wrote to memory of 4156	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	94
PID 4868 wrote to memory of 4156	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	94
PID 4868 wrote to memory of 4836	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	97
PID 4868 wrote to memory of 4836	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	97
PID 4868 wrote to memory of 4836	4868	JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe	97
PID 3468 wrote to memory of 2936	3468	bzoauqbr.exe	103
PID 3468 wrote to memory of 2936	3468	bzoauqbr.exe	103
PID 3468 wrote to memory of 2936	3468	bzoauqbr.exe	103
PID 3468 wrote to memory of 2936	3468	bzoauqbr.exe	103
PID 3468 wrote to memory of 2936	3468	bzoauqbr.exe	103

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ufdowymo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bzoauqbr.exe" C:\Windows\SysWOW64\ufdowymo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ufdowymo binPath= "C:\Windows\SysWOW64\ufdowymo\bzoauqbr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ufdowymo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ufdowymo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4156
- 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:4836
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 680
  2⤵
  - Program crash
  PID:4936

C:\Windows\SysWOW64\ufdowymo\bzoauqbr.exe
C:\Windows\SysWOW64\ufdowymo\bzoauqbr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ba34518dee7609ea2c21e2f7ff7a7f486ff2fadc8a16bbba0b1df035f4ae4a72.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3468 -s 532
  2⤵
  - Program crash
  PID:3228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4868 -ip 4868
1⤵
PID:3620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3468 -ip 3468
1⤵
PID:740

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\bzoauqbr.exe

Filesize
10.0MB

MD5
db0d733bc6f6579dcf5126a90bb1a980

SHA1
e27346bc7cbe4c193d5f000e3fa5cb2ad72abff5

SHA256
2a1f1d1c410649f65a356381d6751674c9c5592789ae401d74bba09e7ce3d2a0

SHA512
3b6d1b92e828a23f8e6d13d96d3046c530276ba3a9d2a2c3e75b34c0ba7b2b57dd005997fc48859dfc7adc0c2d1445df0ab158657c8b97d6a8ed0ce5e46f743d

Download Submit
memory/2936-13-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/2936-15-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/2936-16-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

Filesize
84KB

Download
memory/3468-11-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3468-12-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/3468-18-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/4868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4868-2-0x00000000009F0000-0x0000000000A03000-memory.dmp

Filesize
76KB

Download
memory/4868-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4868-9-0x00000000009F0000-0x0000000000A03000-memory.dmp

Filesize
76KB

Download
memory/4868-8-0x0000000000400000-0x000000000086C000-memory.dmp

Filesize
4.4MB

Download
memory/4868-1-0x0000000000B90000-0x0000000000C90000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads