tofsee | d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917

General

Target

JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe
Size

188KB
MD5

1f855ad0630354c9b8e575d15d289fad
SHA1

6baaa9ce196472a74463d7dbe2a05a4433c81146
SHA256

d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917
SHA512

d2b3068c3f75897dd4952b8ea6634c0079f298c3dd93f4a0e539603314e089bd12c7ef8f93308c53031c3352afdbb91cc2ad7508672b23701262a3f6ad4ddaf6
SSDEEP

3072:xE7PxL7B9burFSv5ucLkCI6Hyxo1+d9RDpZa9uD6Vdyhkx:x0L7BRc65JYCdyNDwVf

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
1900	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\sxbrafqr\ImagePath = "C:\\Windows\\SysWOW64\\sxbrafqr\\tmhtxmx.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe

Deletes itself 1 IoCs

pid	Process
3016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1632	tmhtxmx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 3016	1632	tmhtxmx.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3692	sc.exe
3156	sc.exe
3624	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
2280	2312	WerFault.exe	80
3900	1632	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	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	tmhtxmx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1528	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	82
PID 2312 wrote to memory of 1528	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	82
PID 2312 wrote to memory of 1528	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	82
PID 2312 wrote to memory of 2160	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	84
PID 2312 wrote to memory of 2160	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	84
PID 2312 wrote to memory of 2160	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	84
PID 2312 wrote to memory of 3692	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	86
PID 2312 wrote to memory of 3692	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	86
PID 2312 wrote to memory of 3692	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	86
PID 2312 wrote to memory of 3156	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	88
PID 2312 wrote to memory of 3156	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	88
PID 2312 wrote to memory of 3156	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	88
PID 2312 wrote to memory of 3624	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	90
PID 2312 wrote to memory of 3624	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	90
PID 2312 wrote to memory of 3624	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	90
PID 2312 wrote to memory of 1900	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	93
PID 2312 wrote to memory of 1900	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	93
PID 2312 wrote to memory of 1900	2312	JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe	93
PID 1632 wrote to memory of 3016	1632	tmhtxmx.exe	98
PID 1632 wrote to memory of 3016	1632	tmhtxmx.exe	98
PID 1632 wrote to memory of 3016	1632	tmhtxmx.exe	98
PID 1632 wrote to memory of 3016	1632	tmhtxmx.exe	98
PID 1632 wrote to memory of 3016	1632	tmhtxmx.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\sxbrafqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tmhtxmx.exe" C:\Windows\SysWOW64\sxbrafqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2160
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create sxbrafqr binPath= "C:\Windows\SysWOW64\sxbrafqr\tmhtxmx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description sxbrafqr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3156
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start sxbrafqr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3624
- 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:1900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2312 -s 1036
  2⤵
  - Program crash
  PID:2280

C:\Windows\SysWOW64\sxbrafqr\tmhtxmx.exe
C:\Windows\SysWOW64\sxbrafqr\tmhtxmx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d9d85ca93b32fa124f373a5c3cdb9afecd62769badd6bf3e87f32435cf6fd917.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 512
  2⤵
  - Program crash
  PID:3900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2312 -ip 2312
1⤵
PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1632 -ip 1632
1⤵
PID:2204

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\tmhtxmx.exe

Filesize
11.9MB

MD5
89ccdb3266552e5a20c09fc27645462d

SHA1
b308b56d1de0dfdeae9ba75419d5ebfef859ba1c

SHA256
94b537c3685d3b99c80087cde3a072c13b1b3992a6a5d3685ebee338ec872ccd

SHA512
724b6851c2f39e6483bc799ca3795c176288589459bba22fc1d09aee103b7560ecd53db421ca7fca81ffa57384b40618807aab537db69db16a87a6a1027c4ca0

Download Submit
memory/1632-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1632-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1632-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2312-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2312-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2312-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-8-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2312-7-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2312-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/3016-12-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/3016-14-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download
memory/3016-15-0x0000000000720000-0x0000000000735000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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