tofsee | b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00

General

Target

JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe
Size

188KB
MD5

b902bbf8979f1a374cf1bac4e0be9767
SHA1

01f9cdfc71e798acdab741c4b702abdbc4561348
SHA256

b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00
SHA512

0edd6331d158f267ae081e075b3256c600655c9b0afd6c669baa1a8b72a5b51fc54567ca4911c6fb60c715588717590fe8d6c0a0e311e15b4bdf1184c3f68784
SSDEEP

3072:x17s49QB1NQWpUsMYvHaa9wLMZHHtpZa9uD6Vdyhkf:x59QB1NQWp1bH2MBtwVf

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
4856	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\dgkybgbs\ImagePath = "C:\\Windows\\SysWOW64\\dgkybgbs\\xztieawn.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe

Deletes itself 1 IoCs

pid	Process
2436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5040	xztieawn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 2436	5040	xztieawn.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
4580	sc.exe
4168	sc.exe
2544	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xztieawn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 4860	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	85
PID 2500 wrote to memory of 4860	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	85
PID 2500 wrote to memory of 4860	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	85
PID 2500 wrote to memory of 880	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	87
PID 2500 wrote to memory of 880	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	87
PID 2500 wrote to memory of 880	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	87
PID 2500 wrote to memory of 2544	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	89
PID 2500 wrote to memory of 2544	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	89
PID 2500 wrote to memory of 2544	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	89
PID 2500 wrote to memory of 4580	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	91
PID 2500 wrote to memory of 4580	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	91
PID 2500 wrote to memory of 4580	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	91
PID 2500 wrote to memory of 4168	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	94
PID 2500 wrote to memory of 4168	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	94
PID 2500 wrote to memory of 4168	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	94
PID 2500 wrote to memory of 4856	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	97
PID 2500 wrote to memory of 4856	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	97
PID 2500 wrote to memory of 4856	2500	JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe	97
PID 5040 wrote to memory of 2436	5040	xztieawn.exe	99
PID 5040 wrote to memory of 2436	5040	xztieawn.exe	99
PID 5040 wrote to memory of 2436	5040	xztieawn.exe	99
PID 5040 wrote to memory of 2436	5040	xztieawn.exe	99
PID 5040 wrote to memory of 2436	5040	xztieawn.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dgkybgbs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xztieawn.exe" C:\Windows\SysWOW64\dgkybgbs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dgkybgbs binPath= "C:\Windows\SysWOW64\dgkybgbs\xztieawn.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2544
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dgkybgbs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4580
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dgkybgbs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4168
- 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:4856

C:\Windows\SysWOW64\dgkybgbs\xztieawn.exe
C:\Windows\SysWOW64\dgkybgbs\xztieawn.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b40f20aabb552499cf84c49b51d331125f2ac81fea0388c928ab47a1ab206a00.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2436

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\xztieawn.exe

Filesize
10.0MB

MD5
46d4557bfa2dffd8dab703cd87a9a29a

SHA1
d33cb2680336d25d6d42552883e8dabcaa376a80

SHA256
9afcaf333d68e875d0d3e792095b40c8352efaa93c280b5e71270caa85ef7f53

SHA512
86b593e4c8481a2d20651284c48097140221dca344171615be7acc3fc029898e1c4244a42b933df930eca51bee958c0e0b209d00bededdd2a9cd39b318c5f0f5

Download Submit
memory/2436-15-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2436-18-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2436-13-0x0000000000550000-0x0000000000565000-memory.dmp

Filesize
84KB

Download
memory/2500-7-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2500-8-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/2500-0-0x0000000002180000-0x000000000218D000-memory.dmp

Filesize
52KB

Download
memory/2500-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2500-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2500-1-0x0000000002190000-0x00000000021A3000-memory.dmp

Filesize
76KB

Download
memory/5040-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5040-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5040-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5040-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads