tofsee | 9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212

General

Target

JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe
Size

316KB
MD5

87a58dc8ac5becd9f987e106a98965df
SHA1

d8f43dc14b3947098acec7a6252dc559324acf00
SHA256

9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212
SHA512

2b024787793cd31a8b0cf8bdd83c3b3bc7534f6bb0cbb110d9a2b2253dfc14de45b5a7cb051d4befea4daf0e83e6f267828c48a54c66b411468b4518d1bc445a
SSDEEP

6144:gVhnD8gVlE30L2ybuj67CZ0jGv2Dq31jsoQK7k:0E30L2ybuj67CZ0jGv2Ijs1K4

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
3852	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\fgswhjfe\ImagePath = "C:\\Windows\\SysWOW64\\fgswhjfe\\dstzmxrq.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe

Deletes itself 1 IoCs

pid	Process
1868	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2000	dstzmxrq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 1868	2000	dstzmxrq.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4804	sc.exe
4816	sc.exe
2184	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
2480	1516	WerFault.exe	83
4532	2000	WerFault.exe	94

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.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	dstzmxrq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 3288	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	84
PID 1516 wrote to memory of 3288	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	84
PID 1516 wrote to memory of 3288	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	84
PID 1516 wrote to memory of 772	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	86
PID 1516 wrote to memory of 772	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	86
PID 1516 wrote to memory of 772	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	86
PID 1516 wrote to memory of 4804	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	88
PID 1516 wrote to memory of 4804	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	88
PID 1516 wrote to memory of 4804	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	88
PID 1516 wrote to memory of 4816	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	90
PID 1516 wrote to memory of 4816	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	90
PID 1516 wrote to memory of 4816	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	90
PID 1516 wrote to memory of 2184	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	92
PID 1516 wrote to memory of 2184	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	92
PID 1516 wrote to memory of 2184	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	92
PID 1516 wrote to memory of 3852	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	95
PID 1516 wrote to memory of 3852	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	95
PID 1516 wrote to memory of 3852	1516	JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe	95
PID 2000 wrote to memory of 1868	2000	dstzmxrq.exe	100
PID 2000 wrote to memory of 1868	2000	dstzmxrq.exe	100
PID 2000 wrote to memory of 1868	2000	dstzmxrq.exe	100
PID 2000 wrote to memory of 1868	2000	dstzmxrq.exe	100
PID 2000 wrote to memory of 1868	2000	dstzmxrq.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fgswhjfe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dstzmxrq.exe" C:\Windows\SysWOW64\fgswhjfe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fgswhjfe binPath= "C:\Windows\SysWOW64\fgswhjfe\dstzmxrq.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fgswhjfe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fgswhjfe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2184
- 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:3852
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1236
  2⤵
  - Program crash
  PID:2480

C:\Windows\SysWOW64\fgswhjfe\dstzmxrq.exe
C:\Windows\SysWOW64\fgswhjfe\dstzmxrq.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9c4dd198c1fcf7dac80b64a82f4c5b72f83441847ee772de5016d634154b4212.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 512
  2⤵
  - Program crash
  PID:4532

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1516 -ip 1516
1⤵
PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2000 -ip 2000
1⤵
PID:4404

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\dstzmxrq.exe

Filesize
10.9MB

MD5
3be31128afc7a880d5f9ed651dc4856f

SHA1
39efb735df35445d9fb675fb33e662ccad574439

SHA256
b062d001dfb988428a52fa88237b8d072f1a22e9d6c79099219995f1b21d2dd3

SHA512
36824fe0469de684e055af462cda01eeb6be13b3fdca0459484b4b489731a47a4566e97f30f5b47109e35421b0871024adb4504e0b5845204f18a0e942c65e77

Download Submit
memory/1516-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

Filesize
1024KB

Download
memory/1516-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1516-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1516-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1516-8-0x0000000002CF0000-0x0000000002D03000-memory.dmp

Filesize
76KB

Download
memory/1516-7-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download
memory/1868-11-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/1868-13-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/1868-14-0x0000000000CC0000-0x0000000000CD5000-memory.dmp

Filesize
84KB

Download
memory/2000-15-0x0000000000400000-0x0000000002B46000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads