tofsee | 53334a426525497e8cb6ffff44e8b29cbfda8b1e6bfa3041604b272211b2f6e5

General

Target

c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe
Size

13.4MB
MD5

c7e3c29a30cffbdc9a1c8b20f8d49ba0
SHA1

196e02f66bd9281f79e364bd553926dff2a36559
SHA256

53334a426525497e8cb6ffff44e8b29cbfda8b1e6bfa3041604b272211b2f6e5
SHA512

5483e6be0c230aea680abfbeb2751e529fb77f82e7507ab9e8c56a13ce859df18f7f2b2686a3314728fb5eb6b2e9f81306b4fb8cce4bf4f4d12c27baed0024d3
SSDEEP

24576:sE2llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllB:sE

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
3236	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\qbkcmfxp\ImagePath = "C:\\Windows\\SysWOW64\\qbkcmfxp\\fdseyufv.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3992	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1732	fdseyufv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1732 set thread context of 3992	1732	fdseyufv.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4692	sc.exe
4688	sc.exe
4108	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c7e3c29a30cffbdc9a1c8b20f8d49ba0_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	fdseyufv.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 2076	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	83
PID 3396 wrote to memory of 2076	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	83
PID 3396 wrote to memory of 2076	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	83
PID 3396 wrote to memory of 4468	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	85
PID 3396 wrote to memory of 4468	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	85
PID 3396 wrote to memory of 4468	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	85
PID 3396 wrote to memory of 4692	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	89
PID 3396 wrote to memory of 4692	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	89
PID 3396 wrote to memory of 4692	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	89
PID 3396 wrote to memory of 4688	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	91
PID 3396 wrote to memory of 4688	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	91
PID 3396 wrote to memory of 4688	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	91
PID 3396 wrote to memory of 4108	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	97
PID 3396 wrote to memory of 4108	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	97
PID 3396 wrote to memory of 4108	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	97
PID 3396 wrote to memory of 3236	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	100
PID 3396 wrote to memory of 3236	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	100
PID 3396 wrote to memory of 3236	3396	c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe	100
PID 1732 wrote to memory of 3992	1732	fdseyufv.exe	105
PID 1732 wrote to memory of 3992	1732	fdseyufv.exe	105
PID 1732 wrote to memory of 3992	1732	fdseyufv.exe	105
PID 1732 wrote to memory of 3992	1732	fdseyufv.exe	105
PID 1732 wrote to memory of 3992	1732	fdseyufv.exe	105

C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qbkcmfxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdseyufv.exe" C:\Windows\SysWOW64\qbkcmfxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qbkcmfxp binPath= "C:\Windows\SysWOW64\qbkcmfxp\fdseyufv.exe /d\"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qbkcmfxp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qbkcmfxp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4108
- 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:3236

C:\Windows\SysWOW64\qbkcmfxp\fdseyufv.exe
C:\Windows\SysWOW64\qbkcmfxp\fdseyufv.exe /d"C:\Users\Admin\AppData\Local\Temp\c7e3c29a30cffbdc9a1c8b20f8d49ba0_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3992

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\fdseyufv.exe

Filesize
10.8MB

MD5
ade51ac761d4b703954623e6ae83d7d7

SHA1
8945c4178f923472a27b0c0c98fd95b16734c2c0

SHA256
612bef0c8974b5ad775215978f407c11f1bf5d48f50334bdd7ce88563223b4dc

SHA512
378b6ba397f302eced7c51759c5e7394353120bb79ca3196270f183fe8aa9b0f056b6843eae3de5ee090a2a43f921227e2cd3ff3f3c07abfbba26933abc9fa87

Download Submit
memory/1732-11-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1732-13-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1732-12-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/1732-17-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3396-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3396-2-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/3396-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3396-9-0x00000000021F0000-0x0000000002203000-memory.dmp

Filesize
76KB

Download
memory/3396-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/3396-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/3992-14-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/3992-18-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/3992-19-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads