tofsee | ebe61355e05f3920d077495ca302afbabcbbad760c13f14d3b3d1e8c8dedfaae

General

Target

JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe
Size

13.0MB
MD5

4b02b5efc37cca1c519ee86f00a210f7
SHA1

c15d7ee674c4373e5e8c517e581e5102c6cd4416
SHA256

ebe61355e05f3920d077495ca302afbabcbbad760c13f14d3b3d1e8c8dedfaae
SHA512

a219b35b48bc6bf452471d2b265eb59ad6b40f79dd7a265be8c1c99ea145dcc108aff2ec4908e586acb00473ea113cc8ce001ae3beac5e3db015b9f214bf1daa
SSDEEP

6144:fKP2GmiErAKEjgoUYRxiPnkIW2p6/hR6bPz/9hniF:OdEkf5UmiE2pagL9hi

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
1624	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\btlaicvw\ImagePath = "C:\\Windows\\SysWOW64\\btlaicvw\\lohpnpxh.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe

Deletes itself 1 IoCs

pid	Process
2404	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4792	lohpnpxh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4792 set thread context of 2404	4792	lohpnpxh.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
2840	sc.exe
4144	sc.exe
4372	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
2668	3060	WerFault.exe	82
4732	4792	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	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lohpnpxh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 408	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	83
PID 3060 wrote to memory of 408	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	83
PID 3060 wrote to memory of 408	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	83
PID 3060 wrote to memory of 1420	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	85
PID 3060 wrote to memory of 1420	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	85
PID 3060 wrote to memory of 1420	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	85
PID 3060 wrote to memory of 2840	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	87
PID 3060 wrote to memory of 2840	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	87
PID 3060 wrote to memory of 2840	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	87
PID 3060 wrote to memory of 4144	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	89
PID 3060 wrote to memory of 4144	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	89
PID 3060 wrote to memory of 4144	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	89
PID 3060 wrote to memory of 4372	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	91
PID 3060 wrote to memory of 4372	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	91
PID 3060 wrote to memory of 4372	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	91
PID 3060 wrote to memory of 1624	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	94
PID 3060 wrote to memory of 1624	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	94
PID 3060 wrote to memory of 1624	3060	JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe	94
PID 4792 wrote to memory of 2404	4792	lohpnpxh.exe	100
PID 4792 wrote to memory of 2404	4792	lohpnpxh.exe	100
PID 4792 wrote to memory of 2404	4792	lohpnpxh.exe	100
PID 4792 wrote to memory of 2404	4792	lohpnpxh.exe	100
PID 4792 wrote to memory of 2404	4792	lohpnpxh.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\btlaicvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:408
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lohpnpxh.exe" C:\Windows\SysWOW64\btlaicvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create btlaicvw binPath= "C:\Windows\SysWOW64\btlaicvw\lohpnpxh.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description btlaicvw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start btlaicvw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4372
- 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:1624
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 596
  2⤵
  - Program crash
  PID:2668

C:\Windows\SysWOW64\btlaicvw\lohpnpxh.exe
C:\Windows\SysWOW64\btlaicvw\lohpnpxh.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4b02b5efc37cca1c519ee86f00a210f7.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4792 -s 516
  2⤵
  - Program crash
  PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3060 -ip 3060
1⤵
PID:4396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4792 -ip 4792
1⤵
PID:4016

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\lohpnpxh.exe

Filesize
11.9MB

MD5
d6bf9bbbbbc6dafa674bb883a76a1abe

SHA1
ad7d8b0a25132737e55db15d218c29d8eb66cd60

SHA256
25302298a9ba79c5b2426d546c5e00863fedd4f763c8c3a72562f01c9c267a8f

SHA512
fc39b74c0e943665f74cbbdcb90492d2de51f109c334db1e955e2fa38d741ed73800fb6d9f9646d4be96840c4e6a1434a19d204ed55f403d6c0409e39838c611

Download Submit
memory/2404-14-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2404-16-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/2404-17-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3060-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3060-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3060-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3060-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3060-9-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/3060-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/4792-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4792-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4792-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4792-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads