tofsee | c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391

General

Target

JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe
Size

165KB
MD5

d5a681d05ff818203baa6089fd07136e
SHA1

ce8e81746a32507d44050cfaa65ed9740c81acdc
SHA256

c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391
SHA512

b84c65ec603656e5a369dc6129024e0436642c0f0837a4de665ed838bdbe5a8eab94b656edbd7bfcb177ba768b29c9fa2db91f6b6b3a613ac86694127759f076
SSDEEP

3072:iuerXeNjwshS8o15iZ9/D+3pCTMfsHY87+e2:SrXOjwshStiZo3Eas487+R

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

quadoil.ru

lakeflex.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
2888	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\vxffurx\ImagePath = "C:\\Windows\\SysWOW64\\vxffurx\\kpomcirg.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_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe

Executes dropped EXE 1 IoCs

pid	Process
5044	kpomcirg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5044 set thread context of 2712	5044	kpomcirg.exe	95

Launches sc.exe 3 IoCs

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

pid	Process
4832	sc.exe
4208	sc.exe
2960	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_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.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	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	kpomcirg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 1680	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	82
PID 1056 wrote to memory of 1680	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	82
PID 1056 wrote to memory of 1680	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	82
PID 1056 wrote to memory of 456	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	84
PID 1056 wrote to memory of 456	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	84
PID 1056 wrote to memory of 456	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	84
PID 1056 wrote to memory of 4832	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	86
PID 1056 wrote to memory of 4832	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	86
PID 1056 wrote to memory of 4832	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	86
PID 1056 wrote to memory of 4208	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	88
PID 1056 wrote to memory of 4208	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	88
PID 1056 wrote to memory of 4208	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	88
PID 1056 wrote to memory of 2960	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	90
PID 1056 wrote to memory of 2960	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	90
PID 1056 wrote to memory of 2960	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	90
PID 1056 wrote to memory of 2888	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	93
PID 1056 wrote to memory of 2888	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	93
PID 1056 wrote to memory of 2888	1056	JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe	93
PID 5044 wrote to memory of 2712	5044	kpomcirg.exe	95
PID 5044 wrote to memory of 2712	5044	kpomcirg.exe	95
PID 5044 wrote to memory of 2712	5044	kpomcirg.exe	95
PID 5044 wrote to memory of 2712	5044	kpomcirg.exe	95
PID 5044 wrote to memory of 2712	5044	kpomcirg.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vxffurx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kpomcirg.exe" C:\Windows\SysWOW64\vxffurx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:456
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vxffurx binPath= "C:\Windows\SysWOW64\vxffurx\kpomcirg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vxffurx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vxffurx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- 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:2888

C:\Windows\SysWOW64\vxffurx\kpomcirg.exe
C:\Windows\SysWOW64\vxffurx\kpomcirg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7fc4a06e62713e2e317edb8d4d7a16deab408763d8d2b9eb07cb00dfe4e5391.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - System Location Discovery: System Language Discovery
  PID:2712

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\kpomcirg.exe

Filesize
11.7MB

MD5
1a6b799bc27877add6c92912a82cb3b8

SHA1
5146de7bea8b7ebb5540e76b550a0a9707368962

SHA256
110497784acc7593dabc854029f183035874fdea6129e3558e0e21a95b015182

SHA512
25080a74f70c057f78e48e20518092bda7be764cec49849226128306997952712da7263150ecd5e2347d5ce8e986e229ad43d231022f2a5b1ac6494acf785808

Download Submit
memory/1056-8-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/1056-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-1-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/1056-0-0x00000000005D0000-0x00000000005DD000-memory.dmp

Filesize
52KB

Download
memory/1056-12-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/1056-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1056-14-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/2712-10-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2712-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2712-18-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/5044-6-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5044-7-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/5044-15-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads