tofsee | 72c549a180415c914d6ff4b0247f8a19904aacb08c4db4e24fd4e6f92af3d39c

General

Target

6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe
Size

11.7MB
MD5

6c479a3713975d2c9e5e8ebfb1d9ee78
SHA1

06475d07307cedd887d4792af33288ed7fe08524
SHA256

72c549a180415c914d6ff4b0247f8a19904aacb08c4db4e24fd4e6f92af3d39c
SHA512

f1e18ea6df202a7fc67470dea69a6fa275e85fbea297909b4816e01c65cb93116bb8fc1e0215e36a42d0a9d2b6ef33f7b7fa83e995157a8e0e247305b4754938
SSDEEP

98304:KYTPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPX:K

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.6

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

pid	Process
3828	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\wvfetzoq\ImagePath = "C:\\Windows\\SysWOW64\\wvfetzoq\\uuvdjegs.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4468	uuvdjegs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4468 set thread context of 4636	4468	uuvdjegs.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
1420	sc.exe
3808	sc.exe
1564	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6c479a3713975d2c9e5e8ebfb1d9ee78_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	uuvdjegs.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 1880	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	91
PID 2512 wrote to memory of 1880	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	91
PID 2512 wrote to memory of 1880	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	91
PID 2512 wrote to memory of 1860	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	93
PID 2512 wrote to memory of 1860	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	93
PID 2512 wrote to memory of 1860	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	93
PID 2512 wrote to memory of 1420	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	96
PID 2512 wrote to memory of 1420	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	96
PID 2512 wrote to memory of 1420	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	96
PID 2512 wrote to memory of 3808	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	99
PID 2512 wrote to memory of 3808	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	99
PID 2512 wrote to memory of 3808	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	99
PID 2512 wrote to memory of 1564	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	101
PID 2512 wrote to memory of 1564	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	101
PID 2512 wrote to memory of 1564	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	101
PID 2512 wrote to memory of 3828	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	104
PID 2512 wrote to memory of 3828	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	104
PID 2512 wrote to memory of 3828	2512	6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe	104
PID 4468 wrote to memory of 4636	4468	uuvdjegs.exe	107
PID 4468 wrote to memory of 4636	4468	uuvdjegs.exe	107
PID 4468 wrote to memory of 4636	4468	uuvdjegs.exe	107
PID 4468 wrote to memory of 4636	4468	uuvdjegs.exe	107
PID 4468 wrote to memory of 4636	4468	uuvdjegs.exe	107

C:\Users\Admin\AppData\Local\Temp\6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wvfetzoq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uuvdjegs.exe" C:\Windows\SysWOW64\wvfetzoq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wvfetzoq binPath= "C:\Windows\SysWOW64\wvfetzoq\uuvdjegs.exe /d\"C:\Users\Admin\AppData\Local\Temp\6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wvfetzoq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wvfetzoq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1564
- 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:3828

C:\Windows\SysWOW64\wvfetzoq\uuvdjegs.exe
C:\Windows\SysWOW64\wvfetzoq\uuvdjegs.exe /d"C:\Users\Admin\AppData\Local\Temp\6c479a3713975d2c9e5e8ebfb1d9ee78_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4636

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\uuvdjegs.exe

Filesize
11.9MB

MD5
eab0cbea7378665c69780742d6070adb

SHA1
267db0b7404883597cd2065636d93f3cf469cf11

SHA256
8dcef615fc9b42676cb97e0b957984ece8e05da1877b481ac44fcce5ad0d3248

SHA512
01234c40ca40127aad7a67c57297bef2aa9abe22131774c9b58260374b5dd9d9e66924a1dc3501f2666295cbf9a99042136a999375e065dc27b9f483fb593f4a

Download Submit
memory/2512-2-0x0000000000DC0000-0x0000000000DD3000-memory.dmp

Filesize
76KB

Download
memory/2512-1-0x0000000000E70000-0x0000000000F70000-memory.dmp

Filesize
1024KB

Download
memory/2512-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-7-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/2512-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2512-8-0x0000000000DC0000-0x0000000000DD3000-memory.dmp

Filesize
76KB

Download
memory/4468-12-0x0000000000400000-0x0000000000C17000-memory.dmp

Filesize
8.1MB

Download
memory/4636-11-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/4636-14-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/4636-15-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads