tofsee | 71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020

General

Target

JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe
Size

238KB
MD5

7ac48fea930450a7921154d8fce9af73
SHA1

7d5d237614902b12e9284a268cfec555ddce2c91
SHA256

71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020
SHA512

2aeba3519f28465b0b771e60f8dd786d37fb556810d92f0a15f38990aa597d24d7b93a0ad87e6cb700a84f2d587e369f94d016b788d570ee689ffce2ae4bca50
SSDEEP

6144:9X2ED6j2XfHNWY2CAhgfzoup0x17ITsq7igavwVf:9X246iXQzbGfcupk79

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
5108	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\khudiew\ImagePath = "C:\\Windows\\SysWOW64\\khudiew\\apuvpxat.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_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe

Deletes itself 1 IoCs

pid	Process
4084	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	apuvpxat.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 4084	2632	apuvpxat.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
816	sc.exe
3700	sc.exe
2428	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3648	3028	WerFault.exe	83
1632	2632	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	netsh.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	apuvpxat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2420	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	84
PID 3028 wrote to memory of 2420	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	84
PID 3028 wrote to memory of 2420	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	84
PID 3028 wrote to memory of 1084	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	86
PID 3028 wrote to memory of 1084	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	86
PID 3028 wrote to memory of 1084	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	86
PID 3028 wrote to memory of 816	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	88
PID 3028 wrote to memory of 816	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	88
PID 3028 wrote to memory of 816	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	88
PID 3028 wrote to memory of 3700	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	90
PID 3028 wrote to memory of 3700	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	90
PID 3028 wrote to memory of 3700	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	90
PID 3028 wrote to memory of 2428	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	92
PID 3028 wrote to memory of 2428	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	92
PID 3028 wrote to memory of 2428	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	92
PID 3028 wrote to memory of 5108	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	95
PID 3028 wrote to memory of 5108	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	95
PID 3028 wrote to memory of 5108	3028	JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe	95
PID 2632 wrote to memory of 4084	2632	apuvpxat.exe	100
PID 2632 wrote to memory of 4084	2632	apuvpxat.exe	100
PID 2632 wrote to memory of 4084	2632	apuvpxat.exe	100
PID 2632 wrote to memory of 4084	2632	apuvpxat.exe	100
PID 2632 wrote to memory of 4084	2632	apuvpxat.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\khudiew\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\apuvpxat.exe" C:\Windows\SysWOW64\khudiew\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create khudiew binPath= "C:\Windows\SysWOW64\khudiew\apuvpxat.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description khudiew "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start khudiew
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2428
- 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:5108
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 1096
  2⤵
  - Program crash
  PID:3648

C:\Windows\SysWOW64\khudiew\apuvpxat.exe
C:\Windows\SysWOW64\khudiew\apuvpxat.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_71aac11a291af42dfe2de42ae6523b9c1c8a08d1335d4e41ff37a8c2a3f5a020.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2632 -s 552
  2⤵
  - Program crash
  PID:1632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3028 -ip 3028
1⤵
PID:4600

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2632 -ip 2632
1⤵
PID:2404

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\apuvpxat.exe

Filesize
12.6MB

MD5
51ba1e2ad93535683968794465f859b6

SHA1
dc749dc086588505cff32d8e91e95509d38bcd36

SHA256
f3bf97b4eac9963e9f5bd4f4031abebebe404e146dd9d6c736880be9d0a7c4ed

SHA512
2e30573427804212cb0a822a125be96b8ea273aa728860fd0af27be4e77c53772374d36b71b712357d0c8eb585565eec4a5a7084bcc26326a0c2a5b534ef1aab

Download Submit
memory/2632-11-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2632-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2632-17-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3028-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-1-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/3028-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3028-8-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/3028-7-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/3028-6-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3028-0-0x0000000002190000-0x000000000219D000-memory.dmp

Filesize
52KB

Download
memory/4084-12-0x0000000000500000-0x0000000000515000-memory.dmp

Filesize
84KB

Download
memory/4084-14-0x0000000000500000-0x0000000000515000-memory.dmp

Filesize
84KB

Download
memory/4084-15-0x0000000000500000-0x0000000000515000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads