tofsee | ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2

General

Target

JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe
Size

138KB
MD5

223b4026fb997a4de0d42991a3629e85
SHA1

0d03685aeae7b4e49068e3e84bc154be5fc1f8b6
SHA256

ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2
SHA512

28b9e376420562d2354b995d834cf25611c787aceaea0ec22a6f736ee6fe54717e98bfb031012130f254d0d599fc134c48eba824d42ef02ca6c51a97a0812429
SSDEEP

1536:QtZPAC2DLRaPLmePIWdy38y9Pk9HDQ21XNk+fMk5NjIOhY0U+j0n:XumeAD8vjnZPMk5mj0e

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
1876	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\zczbpyow\ImagePath = "C:\\Windows\\SysWOW64\\zczbpyow\\iubvagtb.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_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe

Deletes itself 1 IoCs

pid	Process
936	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4884	iubvagtb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 936	4884	iubvagtb.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
3920	sc.exe
244	sc.exe
2608	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

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	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.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	cmd.exe
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	iubvagtb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 5072	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	82
PID 2656 wrote to memory of 5072	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	82
PID 2656 wrote to memory of 5072	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	82
PID 2656 wrote to memory of 2384	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	84
PID 2656 wrote to memory of 2384	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	84
PID 2656 wrote to memory of 2384	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	84
PID 2656 wrote to memory of 3920	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	86
PID 2656 wrote to memory of 3920	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	86
PID 2656 wrote to memory of 3920	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	86
PID 2656 wrote to memory of 244	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	88
PID 2656 wrote to memory of 244	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	88
PID 2656 wrote to memory of 244	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	88
PID 2656 wrote to memory of 2608	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	90
PID 2656 wrote to memory of 2608	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	90
PID 2656 wrote to memory of 2608	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	90
PID 2656 wrote to memory of 1876	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	93
PID 2656 wrote to memory of 1876	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	93
PID 2656 wrote to memory of 1876	2656	JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe	93
PID 4884 wrote to memory of 936	4884	iubvagtb.exe	95
PID 4884 wrote to memory of 936	4884	iubvagtb.exe	95
PID 4884 wrote to memory of 936	4884	iubvagtb.exe	95
PID 4884 wrote to memory of 936	4884	iubvagtb.exe	95
PID 4884 wrote to memory of 936	4884	iubvagtb.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zczbpyow\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iubvagtb.exe" C:\Windows\SysWOW64\zczbpyow\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zczbpyow binPath= "C:\Windows\SysWOW64\zczbpyow\iubvagtb.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zczbpyow "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zczbpyow
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:1876

C:\Windows\SysWOW64\zczbpyow\iubvagtb.exe
C:\Windows\SysWOW64\zczbpyow\iubvagtb.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ff133f96c330a714e7fa30fa0744529db63e650fe9bad172f6d3e032ec2121c2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:936

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\iubvagtb.exe

Filesize
13.8MB

MD5
6795d8809e6a59635539abbc036dc3c8

SHA1
943c1ca64c9d7409be2ab364d7795f47fa5f938a

SHA256
7619f7d7244b46af7297ed037587aeff2712e93d24286a67d28d352c784524fe

SHA512
78005794c79b9f2e156fed36d16ddc9d6aae5ce70354616b3fe25bbbfa1f2df1dc262ad6c77ed197f380bc1241418d56cc60a668cf6addd05031edd29bc90a32

Download Submit
memory/936-16-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/936-14-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/936-19-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/2656-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-2-0x0000000000740000-0x0000000000753000-memory.dmp

Filesize
76KB

Download
memory/2656-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2656-9-0x0000000000740000-0x0000000000753000-memory.dmp

Filesize
76KB

Download
memory/2656-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2656-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/4884-11-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4884-12-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4884-18-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/4884-13-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads