tofsee | ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a

General

Target

JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe
Size

291KB
MD5

75e6c2aff85d117e67665bbdb65135c2
SHA1

18a7e734c143851fe75be433ed801e0f723a069e
SHA256

ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a
SHA512

5c4966f063af976a7c844b1c161bca833737d2ef8bf5608e899ef774652f92e922097dda0a5713e37b8be37cf6b0ca238117c99b8e37fecab1bd6f2a91472ab4
SSDEEP

3072:f3fyrBNQ0SXhndx/y8rpdb0Pecqb04kFr+D7VYg0lg/y+3+N1LnBmFMRzGNtn7ff:vqQPFhxcqb044r65YZS7+vBs0w1CeoG

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
3984	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\lxikhqrf\ImagePath = "C:\\Windows\\SysWOW64\\lxikhqrf\\qvfvjo.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe

Deletes itself 1 IoCs

pid	Process
1088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3292	qvfvjo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3292 set thread context of 1088	3292	qvfvjo.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
5104	sc.exe
836	sc.exe
396	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
2548	4324	WerFault.exe	82
3672	3292	WerFault.exe	93

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	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	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qvfvjo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 1624	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	83
PID 4324 wrote to memory of 1624	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	83
PID 4324 wrote to memory of 1624	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	83
PID 4324 wrote to memory of 2192	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	85
PID 4324 wrote to memory of 2192	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	85
PID 4324 wrote to memory of 2192	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	85
PID 4324 wrote to memory of 5104	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	87
PID 4324 wrote to memory of 5104	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	87
PID 4324 wrote to memory of 5104	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	87
PID 4324 wrote to memory of 836	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	89
PID 4324 wrote to memory of 836	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	89
PID 4324 wrote to memory of 836	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	89
PID 4324 wrote to memory of 396	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	91
PID 4324 wrote to memory of 396	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	91
PID 4324 wrote to memory of 396	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	91
PID 4324 wrote to memory of 3984	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	94
PID 4324 wrote to memory of 3984	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	94
PID 4324 wrote to memory of 3984	4324	JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe	94
PID 3292 wrote to memory of 1088	3292	qvfvjo.exe	100
PID 3292 wrote to memory of 1088	3292	qvfvjo.exe	100
PID 3292 wrote to memory of 1088	3292	qvfvjo.exe	100
PID 3292 wrote to memory of 1088	3292	qvfvjo.exe	100
PID 3292 wrote to memory of 1088	3292	qvfvjo.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lxikhqrf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qvfvjo.exe" C:\Windows\SysWOW64\lxikhqrf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lxikhqrf binPath= "C:\Windows\SysWOW64\lxikhqrf\qvfvjo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lxikhqrf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lxikhqrf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:396
- 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:3984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 788
  2⤵
  - Program crash
  PID:2548

C:\Windows\SysWOW64\lxikhqrf\qvfvjo.exe
C:\Windows\SysWOW64\lxikhqrf\qvfvjo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ee5aa1555ccc472a4d5e8e6f34d9b527cd87db85f7c6c2f37148cf3ea422870a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3292 -s 512
  2⤵
  - Program crash
  PID:3672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4324 -ip 4324
1⤵
PID:2928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3292 -ip 3292
1⤵
PID:4000

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\qvfvjo.exe

Filesize
14.0MB

MD5
c9bca5b92c5ff0ccd90552b1ac80b587

SHA1
b10a86a418a34c78d7d103a9e2e172e1be8430ed

SHA256
cf49f576573edc0a5d0291bc2fcd31e222f4f0935a0e4168b5842f72bf913370

SHA512
d04925b6b28ba4c26480a1b3455b46340c7e707273dfce55375e1a43bc71d63a80567d59c06dcba7356dfd162e03d6f6b0a146aa82e487ffb0d91e8b0962ab61

Download Submit
memory/1088-11-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/1088-13-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/1088-14-0x00000000010C0000-0x00000000010D5000-memory.dmp

Filesize
84KB

Download
memory/3292-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/4324-1-0x0000000000B10000-0x0000000000C10000-memory.dmp

Filesize
1024KB

Download
memory/4324-2-0x0000000000A50000-0x0000000000A63000-memory.dmp

Filesize
76KB

Download
memory/4324-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4324-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4324-8-0x0000000000A50000-0x0000000000A63000-memory.dmp

Filesize
76KB

Download
memory/4324-7-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads