tofsee | 9bf45c2ab9d677b2db24bd0c6d53fe037aec876261903f64e2ed10424bd2c9e2

General

Target

JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe
Size

14.5MB
MD5

1c095dacf9f4235ea32633b2c32812f8
SHA1

45aca75338e06d355829f0db5a14860892c4f5d6
SHA256

9bf45c2ab9d677b2db24bd0c6d53fe037aec876261903f64e2ed10424bd2c9e2
SHA512

3ac730faff36b4d2d7778f9c2409df4e15f5b4124bb89d20fc70066d816bb5f343535c101a84779081c43eff09ea240ab0bc6479f9acc27a57314fb6cddd88fc
SSDEEP

196608:gOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO/:

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
1520	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\xnracghn\ImagePath = "C:\\Windows\\SysWOW64\\xnracghn\\cumtsjub.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe

Deletes itself 1 IoCs

pid	Process
3092	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3796	cumtsjub.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3796 set thread context of 3092	3796	cumtsjub.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
396	sc.exe
3468	sc.exe
2708	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
1572	2404	WerFault.exe	82
4624	3796	WerFault.exe	94

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	cumtsjub.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.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

description	pid	Process	procid_target
PID 2404 wrote to memory of 4616	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	83
PID 2404 wrote to memory of 4616	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	83
PID 2404 wrote to memory of 4616	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	83
PID 2404 wrote to memory of 4848	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	86
PID 2404 wrote to memory of 4848	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	86
PID 2404 wrote to memory of 4848	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	86
PID 2404 wrote to memory of 2708	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	88
PID 2404 wrote to memory of 2708	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	88
PID 2404 wrote to memory of 2708	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	88
PID 2404 wrote to memory of 396	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	90
PID 2404 wrote to memory of 396	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	90
PID 2404 wrote to memory of 396	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	90
PID 2404 wrote to memory of 3468	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	92
PID 2404 wrote to memory of 3468	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	92
PID 2404 wrote to memory of 3468	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	92
PID 2404 wrote to memory of 1520	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	95
PID 2404 wrote to memory of 1520	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	95
PID 2404 wrote to memory of 1520	2404	JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe	95
PID 3796 wrote to memory of 3092	3796	cumtsjub.exe	101
PID 3796 wrote to memory of 3092	3796	cumtsjub.exe	101
PID 3796 wrote to memory of 3092	3796	cumtsjub.exe	101
PID 3796 wrote to memory of 3092	3796	cumtsjub.exe	101
PID 3796 wrote to memory of 3092	3796	cumtsjub.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xnracghn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cumtsjub.exe" C:\Windows\SysWOW64\xnracghn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xnracghn binPath= "C:\Windows\SysWOW64\xnracghn\cumtsjub.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xnracghn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:396
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xnracghn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3468
- 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:1520
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 1040
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\xnracghn\cumtsjub.exe
C:\Windows\SysWOW64\xnracghn\cumtsjub.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1c095dacf9f4235ea32633b2c32812f8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3796
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3796 -s 512
  2⤵
  - Program crash
  PID:4624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2404 -ip 2404
1⤵
PID:3964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3796 -ip 3796
1⤵
PID:3024

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\cumtsjub.exe

Filesize
12.0MB

MD5
59ce71865386ffa41acdaefae0a661ed

SHA1
14a4a158d2f52278a9cb4440d6f9326c8d54f51a

SHA256
be7d6f798d08ffa0f761ff131988796a58cf6a20aed8d2b63e442f5377de63b7

SHA512
1cb0e1ded0722b63ba5f8117aecb6ed0b2a72dbd4bf9ba4b29bd99afbef4b758bb56af73c3391811b7ce5dcfe205065dbf9bdab6146d7a818fc3571dab051b64

Download Submit
memory/2404-1-0x0000000002F50000-0x0000000003050000-memory.dmp

Filesize
1024KB

Download
memory/2404-2-0x0000000004C70000-0x0000000004C83000-memory.dmp

Filesize
76KB

Download
memory/2404-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2404-9-0x0000000004C70000-0x0000000004C83000-memory.dmp

Filesize
76KB

Download
memory/2404-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2404-8-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download
memory/3092-11-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3092-13-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3092-14-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3796-15-0x0000000000400000-0x0000000002F11000-memory.dmp

Filesize
43.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads