tofsee | ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411

General

Target

JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe
Size

14.3MB
MD5

2d357e20218ecce7a188d34e2163ac1c
SHA1

1a5bf816db5c146b3b685fdb28c3761608fdfef4
SHA256

ed38d0a2443e4c2ea2ccb9c381f06aa11380c1c51117ef3eb9f327e9bca88411
SHA512

59d6d72c15003acd59936ad400a1d1d465c1d109e9c7360f14603c709679e1fddabfae87252fbb0829fad05fa668deca594715d4775bb2fa9b04af776a7fb182
SSDEEP

6144:uM0Em6Qk5N3Sccccccccccccccccccccccccccccccccccccccccccccccccccc8:oEma

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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
700	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\sbmdobvp\ImagePath = "C:\\Windows\\SysWOW64\\sbmdobvp\\bwdazwst.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe

Deletes itself 1 IoCs

pid	Process
4856	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5024	bwdazwst.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5024 set thread context of 4856	5024	bwdazwst.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
2776	sc.exe
2396	sc.exe
740	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.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	bwdazwst.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 3492	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	83
PID 4016 wrote to memory of 3492	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	83
PID 4016 wrote to memory of 3492	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	83
PID 4016 wrote to memory of 2700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	85
PID 4016 wrote to memory of 2700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	85
PID 4016 wrote to memory of 2700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	85
PID 4016 wrote to memory of 2776	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	87
PID 4016 wrote to memory of 2776	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	87
PID 4016 wrote to memory of 2776	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	87
PID 4016 wrote to memory of 2396	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	89
PID 4016 wrote to memory of 2396	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	89
PID 4016 wrote to memory of 2396	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	89
PID 4016 wrote to memory of 740	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	91
PID 4016 wrote to memory of 740	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	91
PID 4016 wrote to memory of 740	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	91
PID 5024 wrote to memory of 4856	5024	bwdazwst.exe	94
PID 5024 wrote to memory of 4856	5024	bwdazwst.exe	94
PID 5024 wrote to memory of 4856	5024	bwdazwst.exe	94
PID 5024 wrote to memory of 4856	5024	bwdazwst.exe	94
PID 5024 wrote to memory of 4856	5024	bwdazwst.exe	94
PID 4016 wrote to memory of 700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	95
PID 4016 wrote to memory of 700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	95
PID 4016 wrote to memory of 700	4016	JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sbmdobvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bwdazwst.exe" C:\Windows\SysWOW64\sbmdobvp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sbmdobvp binPath= "C:\Windows\SysWOW64\sbmdobvp\bwdazwst.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sbmdobvp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sbmdobvp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:740
- 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:700

C:\Windows\SysWOW64\sbmdobvp\bwdazwst.exe
C:\Windows\SysWOW64\sbmdobvp\bwdazwst.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d357e20218ecce7a188d34e2163ac1c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4856

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\bwdazwst.exe

Filesize
10.8MB

MD5
c6d4998ae86cbb141aab144278b52ac8

SHA1
65ebf42c25a2835274a14cc9e8eec22a96cdae3e

SHA256
aa6add74c8b987343947ae920249e0ff7c11e61212dbf6614f9799346e62cb9e

SHA512
1b0805ab935c52874f41f9bdc689f1fe563bba0a9055759a72fc630ca0728432ad70ed06edb55e19144dbfc0cbbf923fc7d47c6f2cc322d4f818ae68a3dd7cbd

Download Submit
memory/4016-0-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/4016-1-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/4016-2-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4016-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4856-9-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/4856-14-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/4856-15-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/4856-16-0x0000000000960000-0x0000000000975000-memory.dmp

Filesize
84KB

Download
memory/5024-6-0x00000000004A0000-0x00000000004A1000-memory.dmp

Filesize
4KB

Download
memory/5024-8-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/5024-10-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads