tofsee | 090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24

General

Target

JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe
Size

147KB
MD5

1396631f611f0b34bfa14e49f3774c72
SHA1

cd9a713144a06aae7b0050b6bf63362035fcd763
SHA256

090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24
SHA512

130961929d17400c5e9c2d26b6052847506c634460284dd29456c150c90df9d186edca1988fc9bd7fdfc8c8265a233b2fed65be9816c18b8f52e56a45fea348c
SSDEEP

1536:MfISSdp/jPGOEuP7Wvo1xhY15T+ijyP5+WiTHzf0cGNIk6h3uJp+Q7Jgz70Of+RR:MFYpxPkoBSVj+5IXf0cYIkwqfPLRJDz

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
2364	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\ejgdzljx\ImagePath = "C:\\Windows\\SysWOW64\\ejgdzljx\\hoanwjke.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_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe

Deletes itself 1 IoCs

pid	Process
3680	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4640	hoanwjke.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4640 set thread context of 3680	4640	hoanwjke.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
752	sc.exe
1720	sc.exe
956	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
4360	1996	WerFault.exe	82
468	4640	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hoanwjke.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	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 4800	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	83
PID 1996 wrote to memory of 4800	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	83
PID 1996 wrote to memory of 4800	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	83
PID 1996 wrote to memory of 2084	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	85
PID 1996 wrote to memory of 2084	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	85
PID 1996 wrote to memory of 2084	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	85
PID 1996 wrote to memory of 752	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	87
PID 1996 wrote to memory of 752	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	87
PID 1996 wrote to memory of 752	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	87
PID 1996 wrote to memory of 1720	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	89
PID 1996 wrote to memory of 1720	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	89
PID 1996 wrote to memory of 1720	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	89
PID 1996 wrote to memory of 956	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	91
PID 1996 wrote to memory of 956	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	91
PID 1996 wrote to memory of 956	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	91
PID 1996 wrote to memory of 2364	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	94
PID 1996 wrote to memory of 2364	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	94
PID 1996 wrote to memory of 2364	1996	JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe	94
PID 4640 wrote to memory of 3680	4640	hoanwjke.exe	100
PID 4640 wrote to memory of 3680	4640	hoanwjke.exe	100
PID 4640 wrote to memory of 3680	4640	hoanwjke.exe	100
PID 4640 wrote to memory of 3680	4640	hoanwjke.exe	100
PID 4640 wrote to memory of 3680	4640	hoanwjke.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ejgdzljx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hoanwjke.exe" C:\Windows\SysWOW64\ejgdzljx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ejgdzljx binPath= "C:\Windows\SysWOW64\ejgdzljx\hoanwjke.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ejgdzljx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1720
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ejgdzljx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:956
- 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:2364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 1044
  2⤵
  - Program crash
  PID:4360

C:\Windows\SysWOW64\ejgdzljx\hoanwjke.exe
C:\Windows\SysWOW64\ejgdzljx\hoanwjke.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_090d1c667392de95141f6de35994eafe1b37e4e7bdca53d771fd0daf835fed24.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3680
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 508
  2⤵
  - Program crash
  PID:468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1996 -ip 1996
1⤵
PID:3780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4640 -ip 4640
1⤵
PID:3172

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\hoanwjke.exe

Filesize
10.2MB

MD5
e2b98647cd84b9cf01f736ede50d8881

SHA1
6ae70507f463ef239c56220b74b6fe9c5cc37bf3

SHA256
572a60e454641cb5bb3e7d81da7fa42e4a9dd33ba9f94496fed9f84ca4d92709

SHA512
5b80e699ad4d411f128c1a3ac0173044077d637fa0d12e3fc4ac5458cddd318d84994a4fb45e9cecef3c26effa27ed702ce9dc52f41ba86c932d5c774aceddd5

Download Submit
memory/1996-8-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/1996-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-2-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/1996-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1996-9-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/1996-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/3680-14-0x00000000010D0000-0x00000000010E5000-memory.dmp

Filesize
84KB

Download
memory/3680-16-0x00000000010D0000-0x00000000010E5000-memory.dmp

Filesize
84KB

Download
memory/3680-17-0x00000000010D0000-0x00000000010E5000-memory.dmp

Filesize
84KB

Download
memory/4640-12-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4640-11-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4640-13-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4640-18-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads