tofsee | 24937b1c78e92abc361eeb03b2572d65ead8621f75449c0c6d2ad86f65acf3b7

General

Target

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe
Size

13.3MB
MD5

d0bd64760aa59cb9e2cdc6c98e34ae37
SHA1

72161e9916ea883db5dc06bbf4682b7c9394cd6f
SHA256

24937b1c78e92abc361eeb03b2572d65ead8621f75449c0c6d2ad86f65acf3b7
SHA512

01e6cfe3e5c2c259bf995a6d07cc45adf6786452efe37a13ebe450f794c62725c1e10f1fef671f8823b53f23eb375b474312428c4319bf45dc956c50c6404a6e
SSDEEP

6144:z5VCb4QuzFs9pIozzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzr:18NKFs9p

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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

Processes:

netsh.exe

pid	Process
5088	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\pmufonsn\ImagePath = "C:\\Windows\\SysWOW64\\pmufonsn\\auwtnjty.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

Processes:

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
4492	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

auwtnjty.exe

pid	Process
1480	auwtnjty.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

auwtnjty.exe

description	pid	Process	procid_target
PID 1480 set thread context of 4492	1480	auwtnjty.exe	98

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
3692	sc.exe
1484	sc.exe
2076	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

Processes:

netsh.exe

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

Processes:

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.execmd.exesc.exesc.exenetsh.execmd.exesc.exeauwtnjty.exesvchost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.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	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	auwtnjty.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exeauwtnjty.exe

description	pid	Process	procid_target
PID 3844 wrote to memory of 2140	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	86
PID 3844 wrote to memory of 2140	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	86
PID 3844 wrote to memory of 2140	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	86
PID 3844 wrote to memory of 1016	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	88
PID 3844 wrote to memory of 1016	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	88
PID 3844 wrote to memory of 1016	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	88
PID 3844 wrote to memory of 1484	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	90
PID 3844 wrote to memory of 1484	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	90
PID 3844 wrote to memory of 1484	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	90
PID 3844 wrote to memory of 2076	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	93
PID 3844 wrote to memory of 2076	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	93
PID 3844 wrote to memory of 2076	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	93
PID 3844 wrote to memory of 3692	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	95
PID 3844 wrote to memory of 3692	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	95
PID 3844 wrote to memory of 3692	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	95
PID 1480 wrote to memory of 4492	1480	auwtnjty.exe	98
PID 1480 wrote to memory of 4492	1480	auwtnjty.exe	98
PID 1480 wrote to memory of 4492	1480	auwtnjty.exe	98
PID 1480 wrote to memory of 4492	1480	auwtnjty.exe	98
PID 1480 wrote to memory of 4492	1480	auwtnjty.exe	98
PID 3844 wrote to memory of 5088	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	99
PID 3844 wrote to memory of 5088	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	99
PID 3844 wrote to memory of 5088	3844	d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe	99

C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pmufonsn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\auwtnjty.exe" C:\Windows\SysWOW64\pmufonsn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1016
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pmufonsn binPath= "C:\Windows\SysWOW64\pmufonsn\auwtnjty.exe /d\"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pmufonsn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pmufonsn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3692
- 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:5088

C:\Windows\SysWOW64\pmufonsn\auwtnjty.exe
C:\Windows\SysWOW64\pmufonsn\auwtnjty.exe /d"C:\Users\Admin\AppData\Local\Temp\d0bd64760aa59cb9e2cdc6c98e34ae37_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4492

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\auwtnjty.exe

Filesize
13.7MB

MD5
9e7389e9fb0a753a4e5bef9efee11546

SHA1
5411109a0dfb50ab7cc13a9f80ae7eb29f20e4ee

SHA256
94bded9a8b59e6d3f865d2fe85b8b582f0e75f5e220a345ef3d69db1e62d9d02

SHA512
400768f7d340da890a27b4b0fe0ebbdbd1964f053050b8e3c4b7bcdc09098e3f0e184a0d21950e6588c043d002b26f0299cf8e18012036c739c8f874e4dec544

Download Submit
memory/4492-3-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/4492-6-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/4492-7-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/4492-8-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download
memory/4492-9-0x00000000004B0000-0x00000000004C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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