tofsee | caa453134185027742560d6e155b609fda7072e1418dcb815ad3b72e688fd818

General

Target

JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe
Size

13.6MB
MD5

7065a2071418085cb5ee25da958c0373
SHA1

b1ebe8f969ae2b74c7e4a8f8425b40405aa9fe69
SHA256

caa453134185027742560d6e155b609fda7072e1418dcb815ad3b72e688fd818
SHA512

d2b87b104b020277e1c06cb08323a147b07ba7cc617a9087ac60bd3e0e82f62b6c0dd88876cbde8a11b5a1a83660ddce66daa667c95ccaf0e7f0c63f6082844c
SSDEEP

3072:L0dYxvqagQYPbb1gFlSLMU+++++++++++++++++++++++++++++++++++++++++3:4dYrYP1gjSI

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
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
2892	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\misccyyb\ImagePath = "C:\\Windows\\SysWOW64\\misccyyb\\tbquhfoo.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe

Deletes itself 1 IoCs

pid	Process
1224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3424	tbquhfoo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3424 set thread context of 1224	3424	tbquhfoo.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
3572	sc.exe
956	sc.exe
4848	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tbquhfoo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7065a2071418085cb5ee25da958c0373.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 2704	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	82
PID 4564 wrote to memory of 2704	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	82
PID 4564 wrote to memory of 2704	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	82
PID 4564 wrote to memory of 4244	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	84
PID 4564 wrote to memory of 4244	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	84
PID 4564 wrote to memory of 4244	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	84
PID 4564 wrote to memory of 3572	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	86
PID 4564 wrote to memory of 3572	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	86
PID 4564 wrote to memory of 3572	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	86
PID 4564 wrote to memory of 956	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	88
PID 4564 wrote to memory of 956	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	88
PID 4564 wrote to memory of 956	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	88
PID 4564 wrote to memory of 4848	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	90
PID 4564 wrote to memory of 4848	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	90
PID 4564 wrote to memory of 4848	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	90
PID 4564 wrote to memory of 2892	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	93
PID 4564 wrote to memory of 2892	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	93
PID 4564 wrote to memory of 2892	4564	JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe	93
PID 3424 wrote to memory of 1224	3424	tbquhfoo.exe	99
PID 3424 wrote to memory of 1224	3424	tbquhfoo.exe	99
PID 3424 wrote to memory of 1224	3424	tbquhfoo.exe	99
PID 3424 wrote to memory of 1224	3424	tbquhfoo.exe	99
PID 3424 wrote to memory of 1224	3424	tbquhfoo.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\misccyyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tbquhfoo.exe" C:\Windows\SysWOW64\misccyyb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create misccyyb binPath= "C:\Windows\SysWOW64\misccyyb\tbquhfoo.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description misccyyb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start misccyyb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4848
- 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:2892

C:\Windows\SysWOW64\misccyyb\tbquhfoo.exe
C:\Windows\SysWOW64\misccyyb\tbquhfoo.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7065a2071418085cb5ee25da958c0373.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1224

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\tbquhfoo.exe

Filesize
13.9MB

MD5
90e210f858e94737ab8a5026fb7c20bd

SHA1
009b18478e3bcdf1da336208066dfded1059094a

SHA256
b42effac943395191daab4bc024632c6b6cf091451753eb10dcdba03203fec55

SHA512
4656eb5897f76f7634ba6c51d7e01e3354f0101dbc3f8a61168aea9bf1236a9a6952f5ea5f5753d7dbf58a789eb5c9026c34d7f6de88805db324eae170ddad75

Download Submit
memory/1224-14-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/1224-19-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/1224-16-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/3424-12-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3424-11-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3424-13-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3424-18-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4564-8-0x0000000000480000-0x0000000000493000-memory.dmp

Filesize
76KB

Download
memory/4564-7-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4564-1-0x0000000000500000-0x0000000000600000-memory.dmp

Filesize
1024KB

Download
memory/4564-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-2-0x0000000000480000-0x0000000000493000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads