tofsee | ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f

General

Target

JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe
Size

328KB
MD5

a73c813fc82d9241239cce8bcb32ec7c
SHA1

dcac6a0e5617e9370d80abc63f1c7322b5e0326c
SHA256

ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f
SHA512

a816ddf984550d3b19c3c42d0c620f6017a4793869914b33357a7d8b4fcec54edfe8d250ca04a64af2a686241af536a6ca42f3d3c78634244209116f9f37d23c
SSDEEP

6144:w3VYRDgJ9dCwbNAJIZMVfwoi4YnbL+lKf7xUsDYXboo:oV0sY2fnbL+lKtUyYv

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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
4428	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\typhdsvo\ImagePath = "C:\\Windows\\SysWOW64\\typhdsvo\\zfadmvvq.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe

Deletes itself 1 IoCs

pid	Process
4516	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3300	zfadmvvq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3300 set thread context of 4516	3300	zfadmvvq.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4848	sc.exe
2096	sc.exe
2744	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
2132	1952	WerFault.exe	81
2040	3300	WerFault.exe	92

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zfadmvvq.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 3320	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	82
PID 1952 wrote to memory of 3320	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	82
PID 1952 wrote to memory of 3320	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	82
PID 1952 wrote to memory of 2940	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	84
PID 1952 wrote to memory of 2940	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	84
PID 1952 wrote to memory of 2940	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	84
PID 1952 wrote to memory of 4848	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	86
PID 1952 wrote to memory of 4848	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	86
PID 1952 wrote to memory of 4848	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	86
PID 1952 wrote to memory of 2096	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	88
PID 1952 wrote to memory of 2096	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	88
PID 1952 wrote to memory of 2096	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	88
PID 1952 wrote to memory of 2744	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	90
PID 1952 wrote to memory of 2744	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	90
PID 1952 wrote to memory of 2744	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	90
PID 1952 wrote to memory of 4428	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	93
PID 1952 wrote to memory of 4428	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	93
PID 1952 wrote to memory of 4428	1952	JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe	93
PID 3300 wrote to memory of 4516	3300	zfadmvvq.exe	98
PID 3300 wrote to memory of 4516	3300	zfadmvvq.exe	98
PID 3300 wrote to memory of 4516	3300	zfadmvvq.exe	98
PID 3300 wrote to memory of 4516	3300	zfadmvvq.exe	98
PID 3300 wrote to memory of 4516	3300	zfadmvvq.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\typhdsvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zfadmvvq.exe" C:\Windows\SysWOW64\typhdsvo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create typhdsvo binPath= "C:\Windows\SysWOW64\typhdsvo\zfadmvvq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description typhdsvo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start typhdsvo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2744
- 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:4428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 652
  2⤵
  - Program crash
  PID:2132

C:\Windows\SysWOW64\typhdsvo\zfadmvvq.exe
C:\Windows\SysWOW64\typhdsvo\zfadmvvq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ac4b01f7584ce24c3e53d9b67355d4492837efb70c46fea6bb1b283c0bbf3c8f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3300 -s 552
  2⤵
  - Program crash
  PID:2040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1952 -ip 1952
1⤵
PID:2104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3300 -ip 3300
1⤵
PID:5032

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\zfadmvvq.exe

Filesize
11.3MB

MD5
6afe6687dbd0861e40de14375560bd42

SHA1
33da55860c1bf3714e99e21d3733b739ac4d5ca8

SHA256
e51fd7c7453f18737fd9880040aa9374bdf81993c615153a9300b2f95e18dcb2

SHA512
048e2e7eb829e7c622900790d9dd961d439ed8b5342eb4a3f2f7355d86ae07815d9d58cb9dc02d0fa06b4a7aaa723cd25f1bc03f218e2932e4d9cc2f074a9b7f

Download Submit
memory/1952-1-0x0000000002530000-0x0000000002630000-memory.dmp

Filesize
1024KB

Download
memory/1952-2-0x0000000004120000-0x0000000004133000-memory.dmp

Filesize
76KB

Download
memory/1952-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1952-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1952-8-0x0000000004120000-0x0000000004133000-memory.dmp

Filesize
76KB

Download
memory/1952-7-0x0000000000400000-0x00000000023A8000-memory.dmp

Filesize
31.7MB

Download
memory/3300-15-0x0000000000400000-0x00000000023A8000-memory.dmp

Filesize
31.7MB

Download
memory/4516-13-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/4516-11-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download
memory/4516-14-0x0000000000770000-0x0000000000785000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads