tofsee | a2dd70f6f376f77f914c80c9023f60c19c3ee7ab60ceb582cb9e3a4986ea99b4

General

Target

JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe
Size

10.4MB
MD5

ad9879b4dee92bea323e942a7aee0a4f
SHA1

fe954e83ce4ffcf80ccea1f56d06ee0e3ceb4b49
SHA256

a2dd70f6f376f77f914c80c9023f60c19c3ee7ab60ceb582cb9e3a4986ea99b4
SHA512

a821e50da95d0a8dca3059005f70b49e970863fc50122e3a6239a80eb48cba9ed776b99adbbd608b5572818f4930784bafca94b38474609096a7f58ec1960a3e
SSDEEP

49152:ovqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqv:o

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
3176	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\keqqotx\ImagePath = "C:\\Windows\\SysWOW64\\keqqotx\\cumtsjub.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe

Deletes itself 1 IoCs

pid	Process
4468	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	cumtsjub.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 4468	2848	cumtsjub.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1108	sc.exe
2388	sc.exe
2408	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4984	5004	WerFault.exe	82
2240	2848	WerFault.exe	94

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	cumtsjub.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	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_ad9879b4dee92bea323e942a7aee0a4f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 4896	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	83
PID 5004 wrote to memory of 4896	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	83
PID 5004 wrote to memory of 4896	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	83
PID 5004 wrote to memory of 4448	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	85
PID 5004 wrote to memory of 4448	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	85
PID 5004 wrote to memory of 4448	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	85
PID 5004 wrote to memory of 1108	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	87
PID 5004 wrote to memory of 1108	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	87
PID 5004 wrote to memory of 1108	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	87
PID 5004 wrote to memory of 2388	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	90
PID 5004 wrote to memory of 2388	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	90
PID 5004 wrote to memory of 2388	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	90
PID 5004 wrote to memory of 2408	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	92
PID 5004 wrote to memory of 2408	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	92
PID 5004 wrote to memory of 2408	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	92
PID 5004 wrote to memory of 3176	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	95
PID 5004 wrote to memory of 3176	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	95
PID 5004 wrote to memory of 3176	5004	JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe	95
PID 2848 wrote to memory of 4468	2848	cumtsjub.exe	101
PID 2848 wrote to memory of 4468	2848	cumtsjub.exe	101
PID 2848 wrote to memory of 4468	2848	cumtsjub.exe	101
PID 2848 wrote to memory of 4468	2848	cumtsjub.exe	101
PID 2848 wrote to memory of 4468	2848	cumtsjub.exe	101

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\keqqotx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cumtsjub.exe" C:\Windows\SysWOW64\keqqotx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create keqqotx binPath= "C:\Windows\SysWOW64\keqqotx\cumtsjub.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description keqqotx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start keqqotx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- 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:3176
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 1208
  2⤵
  - Program crash
  PID:4984

C:\Windows\SysWOW64\keqqotx\cumtsjub.exe
C:\Windows\SysWOW64\keqqotx\cumtsjub.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ad9879b4dee92bea323e942a7aee0a4f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 512
  2⤵
  - Program crash
  PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5004 -ip 5004
1⤵
PID:1952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2848 -ip 2848
1⤵
PID:4168

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cumtsjub.exe

Filesize
11.0MB

MD5
7cd9c7c317e52a15ca8a018fc8a38a6b

SHA1
7da042acf0e08cbf93fa43fa1118b91939d2d28d

SHA256
49322669fa96fa363888624509e7d23896d8927618ac14cdee1d008ea61c8a21

SHA512
7a1bdb1cc004d0d834f38e04d3abe3ab808078efd2713a38df27d11d464a7af83e5165b95b6d07b25a091cd30ea2ed15fe9b83904bcaae9e81ec5bd8d5a45088

Download Submit
memory/2848-14-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/2848-17-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download
memory/4468-11-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4468-13-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/4468-15-0x0000000000C60000-0x0000000000C75000-memory.dmp

Filesize
84KB

Download
memory/5004-1-0x0000000001980000-0x0000000001A80000-memory.dmp

Filesize
1024KB

Download
memory/5004-2-0x0000000001810000-0x0000000001823000-memory.dmp

Filesize
76KB

Download
memory/5004-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/5004-9-0x0000000001810000-0x0000000001823000-memory.dmp

Filesize
76KB

Download
memory/5004-8-0x0000000000400000-0x00000000016BC000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads