tofsee | c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339

General

Target

JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe
Size

291KB
MD5

a9b53db0d8fa7e204383d8bb1ea6d8e9
SHA1

38598c9ea697fe0d3f1f4b75c366ea96b533f44a
SHA256

c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339
SHA512

355a1350ca0a097dbcf95b5ab87e5eef69df1e9b491b7d48de0d6ff0c1c3277f94940d06c62a0c67e19110c4d67002800bda85005e48b07de44cb3712ad2ef53
SSDEEP

6144:v1Qkl7WtXbo6dYV04w7Y3YNM9bAkPXWANLd:vCkl7W7dOJw7Y3YNM9bAbELd

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
1528	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\kgotkhxa\ImagePath = "C:\\Windows\\SysWOW64\\kgotkhxa\\qvusioxm.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe

Deletes itself 1 IoCs

pid	Process
3196	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1640	qvusioxm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1640 set thread context of 3196	1640	qvusioxm.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
908	sc.exe
772	sc.exe
2652	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2304	4152	WerFault.exe	82
2728	1640	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qvusioxm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 4040	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	83
PID 4152 wrote to memory of 4040	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	83
PID 4152 wrote to memory of 4040	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	83
PID 4152 wrote to memory of 2532	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	85
PID 4152 wrote to memory of 2532	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	85
PID 4152 wrote to memory of 2532	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	85
PID 4152 wrote to memory of 908	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	87
PID 4152 wrote to memory of 908	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	87
PID 4152 wrote to memory of 908	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	87
PID 4152 wrote to memory of 772	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	89
PID 4152 wrote to memory of 772	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	89
PID 4152 wrote to memory of 772	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	89
PID 4152 wrote to memory of 2652	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	91
PID 4152 wrote to memory of 2652	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	91
PID 4152 wrote to memory of 2652	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	91
PID 4152 wrote to memory of 1528	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	94
PID 4152 wrote to memory of 1528	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	94
PID 4152 wrote to memory of 1528	4152	JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe	94
PID 1640 wrote to memory of 3196	1640	qvusioxm.exe	100
PID 1640 wrote to memory of 3196	1640	qvusioxm.exe	100
PID 1640 wrote to memory of 3196	1640	qvusioxm.exe	100
PID 1640 wrote to memory of 3196	1640	qvusioxm.exe	100
PID 1640 wrote to memory of 3196	1640	qvusioxm.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kgotkhxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qvusioxm.exe" C:\Windows\SysWOW64\kgotkhxa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kgotkhxa binPath= "C:\Windows\SysWOW64\kgotkhxa\qvusioxm.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kgotkhxa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kgotkhxa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2652
- 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:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4152 -s 1044
  2⤵
  - Program crash
  PID:2304

C:\Windows\SysWOW64\kgotkhxa\qvusioxm.exe
C:\Windows\SysWOW64\kgotkhxa\qvusioxm.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c93db7852cefef285a014a3273d9769ded1f77326b410e90bec25228c243a339.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1640 -s 516
  2⤵
  - Program crash
  PID:2728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4152 -ip 4152
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1640 -ip 1640
1⤵
PID:1336

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\qvusioxm.exe

Filesize
14.2MB

MD5
230c50a72db858ffd2d26db6741894b9

SHA1
65969e279654ab3350ce80d04b1b0000c761ef49

SHA256
12b9da1caa5b87f13e983269ab837d7bab3357a657a1c58540fabac2d902b876

SHA512
96cba99ec6338a3cf0265a98a615339c26ad973224a146670f7e1e69097a94f5d2eb52a9178daa1a950df115ee8a446eb785f2b536f41ba137d309286995dfda

Download Submit
memory/1640-15-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download
memory/3196-11-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/3196-13-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/3196-14-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/4152-1-0x0000000000B60000-0x0000000000C60000-memory.dmp

Filesize
1024KB

Download
memory/4152-2-0x0000000000A90000-0x0000000000AA3000-memory.dmp

Filesize
76KB

Download
memory/4152-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4152-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4152-8-0x0000000000A90000-0x0000000000AA3000-memory.dmp

Filesize
76KB

Download
memory/4152-7-0x0000000000400000-0x00000000008ED000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads