tofsee | b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b

General

Target

JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe
Size

263KB
MD5

c4d2d0ec862b673e31d2c1e60c6c07bf
SHA1

29bd47351d69565013ce75c7f3adcad7f62e68a8
SHA256

b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b
SHA512

25eac99833b31733e3e8c8f6b72ba8ef63d64e7465a947716e49ccdfa60e3347d3b970e6c660b3dbb9aab693b8df7de4a38a605aecc7c6c351a33746a987b0ea
SSDEEP

6144:uvxGxGgf8Ji8E7ZhHJB+Z/IaESeA5VsXhe0TQ2sc9hdShr:uZkff8JiV7ZhrwIaESBDsXUcQlOmJ

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
208	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\edpoyifw\ImagePath = "C:\\Windows\\SysWOW64\\edpoyifw\\glhzxam.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_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe

Deletes itself 1 IoCs

pid	Process
4468	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
940	glhzxam.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 940 set thread context of 4468	940	glhzxam.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1160	sc.exe
4232	sc.exe
3156	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
2768	1168	WerFault.exe	81
4104	940	WerFault.exe	92

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	glhzxam.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_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.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 1168 wrote to memory of 3392	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	82
PID 1168 wrote to memory of 3392	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	82
PID 1168 wrote to memory of 3392	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	82
PID 1168 wrote to memory of 3608	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	84
PID 1168 wrote to memory of 3608	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	84
PID 1168 wrote to memory of 3608	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	84
PID 1168 wrote to memory of 1160	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	86
PID 1168 wrote to memory of 1160	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	86
PID 1168 wrote to memory of 1160	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	86
PID 1168 wrote to memory of 4232	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	88
PID 1168 wrote to memory of 4232	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	88
PID 1168 wrote to memory of 4232	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	88
PID 1168 wrote to memory of 3156	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	90
PID 1168 wrote to memory of 3156	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	90
PID 1168 wrote to memory of 3156	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	90
PID 1168 wrote to memory of 208	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	93
PID 1168 wrote to memory of 208	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	93
PID 1168 wrote to memory of 208	1168	JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe	93
PID 940 wrote to memory of 4468	940	glhzxam.exe	98
PID 940 wrote to memory of 4468	940	glhzxam.exe	98
PID 940 wrote to memory of 4468	940	glhzxam.exe	98
PID 940 wrote to memory of 4468	940	glhzxam.exe	98
PID 940 wrote to memory of 4468	940	glhzxam.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\edpoyifw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\glhzxam.exe" C:\Windows\SysWOW64\edpoyifw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3608
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create edpoyifw binPath= "C:\Windows\SysWOW64\edpoyifw\glhzxam.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description edpoyifw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start edpoyifw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3156
- 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:208
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1168 -s 1036
  2⤵
  - Program crash
  PID:2768

C:\Windows\SysWOW64\edpoyifw\glhzxam.exe
C:\Windows\SysWOW64\edpoyifw\glhzxam.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3973e6ed16787cb2d51305422f4c17de632b5b341071e8de87076da33cd787b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 532
  2⤵
  - Program crash
  PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1168 -ip 1168
1⤵
PID:732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 940 -ip 940
1⤵
PID:3752

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\glhzxam.exe

Filesize
12.7MB

MD5
950129926d2163b6e647b62749e297b1

SHA1
70063177391539fb3d5524994a5c941dc6164c25

SHA256
3b4388956501d671753f7245473c26246e2cd85e257445b6ea2af370561644f9

SHA512
4cb4d53a96e79548fa930121c1a73597f215364d8294bc41a03bc7b0ebf3385b7bf46fcb99027598f2656574448de09070a63dbfaa59cd6888ee3ea736904e92

Download Submit
memory/940-11-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/940-17-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/940-12-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1168-9-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1168-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1168-1-0x0000000000C00000-0x0000000000D00000-memory.dmp

Filesize
1024KB

Download
memory/1168-8-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1168-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1168-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4468-13-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/4468-15-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download
memory/4468-16-0x0000000000370000-0x0000000000385000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads