tofsee | b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959

General

Target

JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe
Size

211KB
MD5

9665aea33b898abe45a17f0a37ddada2
SHA1

a3fcb62d1007a17387827d5562c08defa2c2768d
SHA256

b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959
SHA512

6fd6d11effc468b4c25cb0dac504057ebb59219a51ff3dd6cc87ac599111b266f11f3cb3a736b4fa1afde2a71e4c9b6700914631b2a445b5e0a31b1418c1f524
SSDEEP

3072:3prJOGCT28OJwIvGvt1LpqC6mcLsRuR5WHeHruAZPwOxAV6fjMfvNZhgC:3prsoJwIvaLpqCIAKWHnALNjMfv5

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.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
3068	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\qtsaeeff\ImagePath = "C:\\Windows\\SysWOW64\\qtsaeeff\\bnifmllz.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe

Deletes itself 1 IoCs

pid	Process
5008	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2016	bnifmllz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2016 set thread context of 5008	2016	bnifmllz.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4336	sc.exe
4976	sc.exe
2424	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 1 IoCs

pid	pid_target	Process	procid_target
3828	1596	WerFault.exe	81

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	sc.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	bnifmllz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1088	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	82
PID 1596 wrote to memory of 1088	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	82
PID 1596 wrote to memory of 1088	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	82
PID 1596 wrote to memory of 1440	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	84
PID 1596 wrote to memory of 1440	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	84
PID 1596 wrote to memory of 1440	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	84
PID 1596 wrote to memory of 4336	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	86
PID 1596 wrote to memory of 4336	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	86
PID 1596 wrote to memory of 4336	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	86
PID 1596 wrote to memory of 4976	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	88
PID 1596 wrote to memory of 4976	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	88
PID 1596 wrote to memory of 4976	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	88
PID 1596 wrote to memory of 2424	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	90
PID 1596 wrote to memory of 2424	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	90
PID 1596 wrote to memory of 2424	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	90
PID 1596 wrote to memory of 3068	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	93
PID 1596 wrote to memory of 3068	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	93
PID 1596 wrote to memory of 3068	1596	JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe	93
PID 2016 wrote to memory of 5008	2016	bnifmllz.exe	98
PID 2016 wrote to memory of 5008	2016	bnifmllz.exe	98
PID 2016 wrote to memory of 5008	2016	bnifmllz.exe	98
PID 2016 wrote to memory of 5008	2016	bnifmllz.exe	98
PID 2016 wrote to memory of 5008	2016	bnifmllz.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qtsaeeff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1088
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bnifmllz.exe" C:\Windows\SysWOW64\qtsaeeff\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qtsaeeff binPath= "C:\Windows\SysWOW64\qtsaeeff\bnifmllz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qtsaeeff "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qtsaeeff
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- 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:3068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1596 -s 1044
  2⤵
  - Program crash
  PID:3828

C:\Windows\SysWOW64\qtsaeeff\bnifmllz.exe
C:\Windows\SysWOW64\qtsaeeff\bnifmllz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b795f0e271a1bd7fc188917caa65ea765c83ffa1ce5dd48d2a5ee3c036562959.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1596 -ip 1596
1⤵
PID:2560

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\bnifmllz.exe

Filesize
12.2MB

MD5
00b4456d2af6bcfb71b7d6194d316687

SHA1
fead6acc9db99f963053ded49441efa63256e6fb

SHA256
2543358efabd2dc79a198b5f8d48863bc60ad8b4c87e2ec8fe375d8f0ba40ba3

SHA512
dc895033a1e6ff60a0a05bc0ead538e99137f6bea922cb2dc8e351bd8973193beef8dc24261885a536c9489aaf1ef18aba19edf62c778f94546d8d92d86936ad

Download Submit
memory/1596-1-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/1596-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1596-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1596-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1596-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1596-8-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/2016-14-0x0000000000400000-0x0000000002B74000-memory.dmp

Filesize
39.5MB

Download
memory/5008-11-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download
memory/5008-13-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download
memory/5008-15-0x0000000000B20000-0x0000000000B35000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads