tofsee | d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974

General

Target

JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe
Size

10.9MB
MD5

00648d8195f97b68fb658c75f256f2b4
SHA1

e45eb357905049dbfe81ad64a87fe4158392aeab
SHA256

d572033c59d050ae0a7b6cafa3728a7675721bff18f4087fee4e8d8692c0a974
SHA512

d70b12a153aa790925c134c638a522190930fc701d6cd45aff119a292d4657c4084fcafb424093d248421e26f2dd728526759e7f93a49147fdec937f7c86923d
SSDEEP

196608:ITTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTX:

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
1156	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\vnzqaohm\ImagePath = "C:\\Windows\\SysWOW64\\vnzqaohm\\iettyflc.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe

Deletes itself 1 IoCs

pid	Process
556	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1772	iettyflc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 556	1772	iettyflc.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3804	sc.exe
4936	sc.exe
2156	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
2720	2880	WerFault.exe	82
2004	1772	WerFault.exe	95

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	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iettyflc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 4008	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	83
PID 2880 wrote to memory of 4008	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	83
PID 2880 wrote to memory of 4008	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	83
PID 2880 wrote to memory of 1792	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	85
PID 2880 wrote to memory of 1792	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	85
PID 2880 wrote to memory of 1792	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	85
PID 2880 wrote to memory of 3804	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	88
PID 2880 wrote to memory of 3804	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	88
PID 2880 wrote to memory of 3804	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	88
PID 2880 wrote to memory of 4936	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	91
PID 2880 wrote to memory of 4936	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	91
PID 2880 wrote to memory of 4936	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	91
PID 2880 wrote to memory of 2156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	93
PID 2880 wrote to memory of 2156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	93
PID 2880 wrote to memory of 2156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	93
PID 2880 wrote to memory of 1156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	96
PID 2880 wrote to memory of 1156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	96
PID 2880 wrote to memory of 1156	2880	JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe	96
PID 1772 wrote to memory of 556	1772	iettyflc.exe	102
PID 1772 wrote to memory of 556	1772	iettyflc.exe	102
PID 1772 wrote to memory of 556	1772	iettyflc.exe	102
PID 1772 wrote to memory of 556	1772	iettyflc.exe	102
PID 1772 wrote to memory of 556	1772	iettyflc.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vnzqaohm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iettyflc.exe" C:\Windows\SysWOW64\vnzqaohm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vnzqaohm binPath= "C:\Windows\SysWOW64\vnzqaohm\iettyflc.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vnzqaohm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vnzqaohm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2156
- 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:1156
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 1188
  2⤵
  - Program crash
  PID:2720

C:\Windows\SysWOW64\vnzqaohm\iettyflc.exe
C:\Windows\SysWOW64\vnzqaohm\iettyflc.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00648d8195f97b68fb658c75f256f2b4.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 520
  2⤵
  - Program crash
  PID:2004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2880 -ip 2880
1⤵
PID:4268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1772 -ip 1772
1⤵
PID:3964

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\iettyflc.exe

Filesize
11.9MB

MD5
22b3ddb7f2824110ec201f3ae951f273

SHA1
c34d5a516b5cab6d0dbfe71e9dfae6dabc1cdcde

SHA256
ab4230459e63dd0bda95c19d4fe5dc3d939bf3a644f15950b79b1d98090da59d

SHA512
42e4faf065870709d6fa907421272baf126514cbf2bfccc95a83f07bbb75c8824c384697660fdd1c29fb5ac772e2b75ba60afd7c46cf5b0991ffc16cf6f9d89c

Download Submit
memory/556-11-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/556-14-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/556-15-0x00000000005D0000-0x00000000005E5000-memory.dmp

Filesize
84KB

Download
memory/1772-12-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/1772-17-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download
memory/2880-1-0x00000000017C0000-0x00000000018C0000-memory.dmp

Filesize
1024KB

Download
memory/2880-2-0x0000000001760000-0x0000000001773000-memory.dmp

Filesize
76KB

Download
memory/2880-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2880-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2880-9-0x0000000001760000-0x0000000001773000-memory.dmp

Filesize
76KB

Download
memory/2880-8-0x0000000000400000-0x00000000016BD000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads