tofsee | 807c0b3795e7c29931bfdec2779743155c676500793dee9fe7412fc9f1892552

General

Target

207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe
Size

12.4MB
MD5

207f80d8aecae948ddfcecd954a9f645
SHA1

6805e7fa9d8dd810ba2a2e017b9a1c46fb5164e9
SHA256

807c0b3795e7c29931bfdec2779743155c676500793dee9fe7412fc9f1892552
SHA512

ef86d35a0b7034ceda9a32c00a68dde04ea9f53a8a3e1f26bf0a677fbb058c62b4f8dac86f24ba290a3cc34683bb4b282151e8887dc4744d8c29a109a6f834ee
SSDEEP

24576:HUqa71YB5DHlommmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmG:HF15

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
972	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

mvlzaodj.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\tawaqqfm\ImagePath = "C:\\Windows\\SysWOW64\\tawaqqfm\\mvlzaodj.exe"	mvlzaodj.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:

207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
4408	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

mvlzaodj.exe

pid	Process
1336	mvlzaodj.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

mvlzaodj.exe

description	pid	Process	procid_target
PID 1336 set thread context of 4408	1336	mvlzaodj.exe	103

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
4624	sc.exe
4644	sc.exe
3812	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

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	procid_target
1672	5116	WerFault.exe	82
3208	1336	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

Processes:

netsh.exesc.exesc.exesc.exemvlzaodj.exesvchost.exe207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.execmd.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	sc.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	mvlzaodj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exemvlzaodj.exe

description	pid	Process	procid_target
PID 5116 wrote to memory of 4928	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	86
PID 5116 wrote to memory of 4928	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	86
PID 5116 wrote to memory of 4928	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	86
PID 5116 wrote to memory of 828	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	88
PID 5116 wrote to memory of 828	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	88
PID 5116 wrote to memory of 828	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	88
PID 5116 wrote to memory of 4624	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	90
PID 5116 wrote to memory of 4624	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	90
PID 5116 wrote to memory of 4624	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	90
PID 5116 wrote to memory of 4644	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	92
PID 5116 wrote to memory of 4644	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	92
PID 5116 wrote to memory of 4644	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	92
PID 5116 wrote to memory of 3812	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	94
PID 5116 wrote to memory of 3812	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	94
PID 5116 wrote to memory of 3812	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	94
PID 5116 wrote to memory of 972	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	97
PID 5116 wrote to memory of 972	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	97
PID 5116 wrote to memory of 972	5116	207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe	97
PID 1336 wrote to memory of 4408	1336	mvlzaodj.exe	103
PID 1336 wrote to memory of 4408	1336	mvlzaodj.exe	103
PID 1336 wrote to memory of 4408	1336	mvlzaodj.exe	103
PID 1336 wrote to memory of 4408	1336	mvlzaodj.exe	103
PID 1336 wrote to memory of 4408	1336	mvlzaodj.exe	103

C:\Users\Admin\AppData\Local\Temp\207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tawaqqfm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvlzaodj.exe" C:\Windows\SysWOW64\tawaqqfm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:828
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tawaqqfm binPath= "C:\Windows\SysWOW64\tawaqqfm\mvlzaodj.exe /d\"C:\Users\Admin\AppData\Local\Temp\207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tawaqqfm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4644
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tawaqqfm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3812
- 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:972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 1040
  2⤵
  - Program crash
  PID:1672

C:\Windows\SysWOW64\tawaqqfm\mvlzaodj.exe
C:\Windows\SysWOW64\tawaqqfm\mvlzaodj.exe /d"C:\Users\Admin\AppData\Local\Temp\207f80d8aecae948ddfcecd954a9f645_JaffaCakes118.exe"
1⤵
- Sets service image path in registry
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1336 -s 516
  2⤵
  - Program crash
  PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 5116 -ip 5116
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1336 -ip 1336
1⤵
PID:5096

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\mvlzaodj.exe

Filesize
13.2MB

MD5
db7af643b93deae26b7a165b9354537c

SHA1
45f31f72a213e2a66080074fad3f70742d846e0d

SHA256
4676190eaae85fdc71bb21c1c6af7336addd9b623d19a6505739f1254ad62fae

SHA512
e7b8c3fd77ef286d41bf7025616ab6c2e7187435504530c75f9c7ffdd3f990e886af912923417f6d3d1dbe9dfc14b05947f0ac69dc5ebaca57190f5e753b9ac2

Download Submit
memory/1336-13-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1336-11-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1336-12-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1336-18-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/4408-14-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/4408-16-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/4408-17-0x0000000000D70000-0x0000000000D85000-memory.dmp

Filesize
84KB

Download
memory/5116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5116-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/5116-9-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download
memory/5116-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5116-8-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/5116-2-0x00000000021B0000-0x00000000021C3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads