tofsee | 704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2

General

Target

JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe
Size

299KB
MD5

a31d942ddc979a8c1d46608d5aa428ef
SHA1

ddf40346d87a918d13bfe5f378a389c100538c59
SHA256

704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2
SHA512

3ca502da4715b3bb6dc2e3191a87e6d5f89cd4d64fcd4d4c25650b2f554724f60549aab01e3ec15fda6e86b797322077e9663e90bbe0367c91d5238db568ceb0
SSDEEP

6144:rcjMScmcUfbnJRoc904tsKZ4g+8IvhGDNGxty:rcjXf3V04tsKW78ShKGe

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

parubey.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
812	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\lytlksbz\ImagePath = "C:\\Windows\\SysWOW64\\lytlksbz\\biduzeqx.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe

Deletes itself 1 IoCs

pid	Process
4596	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2296	biduzeqx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2296 set thread context of 4596	2296	biduzeqx.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
1008	sc.exe
1388	sc.exe
1748	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
548	2296	WerFault.exe	94
3452	4312	WerFault.exe	83

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biduzeqx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 2308	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	84
PID 4312 wrote to memory of 2308	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	84
PID 4312 wrote to memory of 2308	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	84
PID 4312 wrote to memory of 228	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	86
PID 4312 wrote to memory of 228	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	86
PID 4312 wrote to memory of 228	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	86
PID 4312 wrote to memory of 1008	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	88
PID 4312 wrote to memory of 1008	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	88
PID 4312 wrote to memory of 1008	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	88
PID 4312 wrote to memory of 1388	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	90
PID 4312 wrote to memory of 1388	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	90
PID 4312 wrote to memory of 1388	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	90
PID 4312 wrote to memory of 1748	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	92
PID 4312 wrote to memory of 1748	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	92
PID 4312 wrote to memory of 1748	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	92
PID 4312 wrote to memory of 812	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	95
PID 4312 wrote to memory of 812	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	95
PID 4312 wrote to memory of 812	4312	JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe	95
PID 2296 wrote to memory of 4596	2296	biduzeqx.exe	99
PID 2296 wrote to memory of 4596	2296	biduzeqx.exe	99
PID 2296 wrote to memory of 4596	2296	biduzeqx.exe	99
PID 2296 wrote to memory of 4596	2296	biduzeqx.exe	99
PID 2296 wrote to memory of 4596	2296	biduzeqx.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lytlksbz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\biduzeqx.exe" C:\Windows\SysWOW64\lytlksbz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:228
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lytlksbz binPath= "C:\Windows\SysWOW64\lytlksbz\biduzeqx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lytlksbz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lytlksbz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1748
- 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:812
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 1164
  2⤵
  - Program crash
  PID:3452

C:\Windows\SysWOW64\lytlksbz\biduzeqx.exe
C:\Windows\SysWOW64\lytlksbz\biduzeqx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_704f5e94f68cb6eab31620994c481bdcc2f99ab2976be6adeabf62900b7e32d2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4596
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2296 -s 520
  2⤵
  - Program crash
  PID:548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4312 -ip 4312
1⤵
PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2296 -ip 2296
1⤵
PID:3468

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\biduzeqx.exe

Filesize
10.3MB

MD5
c68dd5b7e9c0b13d913258b57a98bc70

SHA1
1fa6ca4bb728dbe70dae4970959451713d62fe3e

SHA256
3f56197ac6c37d7530f121d9add45f19348b4c533c443e032f6b774d4b98a68b

SHA512
5976c388fcdebd9564f6cc3e5ae351d7ebc013e8e52c0ce23e5102cc78fb7bfc49ae25d934e576cb41550b1d41056d0143fe81f3f8feb4a49872f2c6481c0bf0

Download Submit
memory/2296-8-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2296-16-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2296-12-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/2296-9-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/4312-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4312-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4312-17-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download
memory/4312-18-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4312-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/4596-14-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4596-10-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4596-20-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4596-21-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download
memory/4596-22-0x00000000005E0000-0x00000000005F5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads