tofsee | 39177e8c1255444d714f716028f324d346c3f9ce13e99554ef9a56a9094bdf58

Analysis

max time kernel
148s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 14:27

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General

Target

5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe
Size

14.7MB
MD5

5d1470caf0cf10f682be43586f909f62
SHA1

8b8e686d21ff3277ce86d9b5f9475eff108875ff
SHA256

39177e8c1255444d714f716028f324d346c3f9ce13e99554ef9a56a9094bdf58
SHA512

c265fee6d74bfaaacd05f790e2f6863362be0f112b2d6deb58803502500a536b5b6ef24b90b8d30732acb4f3f635c69d1ea38282d900d7422cf7b6f1c6e4d174
SSDEEP

24576:Pgdy5yNM4444444444444444444444444444444444444444444444444444444g:

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\kfsxgjqi = "0"	svchost.exe

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
2628	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\kfsxgjqi\ImagePath = "C:\\Windows\\SysWOW64\\kfsxgjqi\\reaqyfak.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
532	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2576	reaqyfak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2576 set thread context of 532	2576	reaqyfak.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2312	sc.exe
2884	sc.exe
2784	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

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	cmd.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	reaqyfak.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d1470caf0cf10f682be43586f909f62_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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 2740	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2740	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2740	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2740	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	30
PID 2668 wrote to memory of 2812	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2812	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2812	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2812	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2312	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	34
PID 2668 wrote to memory of 2312	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	34
PID 2668 wrote to memory of 2312	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	34
PID 2668 wrote to memory of 2312	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	34
PID 2668 wrote to memory of 2884	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	36
PID 2668 wrote to memory of 2884	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	36
PID 2668 wrote to memory of 2884	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	36
PID 2668 wrote to memory of 2884	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	36
PID 2668 wrote to memory of 2784	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	38
PID 2668 wrote to memory of 2784	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	38
PID 2668 wrote to memory of 2784	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	38
PID 2668 wrote to memory of 2784	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	38
PID 2668 wrote to memory of 2628	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	41
PID 2668 wrote to memory of 2628	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	41
PID 2668 wrote to memory of 2628	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	41
PID 2668 wrote to memory of 2628	2668	5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe	41
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43
PID 2576 wrote to memory of 532	2576	reaqyfak.exe	43

C:\Users\Admin\AppData\Local\Temp\5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kfsxgjqi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\reaqyfak.exe" C:\Windows\SysWOW64\kfsxgjqi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kfsxgjqi binPath= "C:\Windows\SysWOW64\kfsxgjqi\reaqyfak.exe /d\"C:\Users\Admin\AppData\Local\Temp\5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kfsxgjqi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kfsxgjqi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- 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:2628

C:\Windows\SysWOW64\kfsxgjqi\reaqyfak.exe
C:\Windows\SysWOW64\kfsxgjqi\reaqyfak.exe /d"C:\Users\Admin\AppData\Local\Temp\5d1470caf0cf10f682be43586f909f62_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.5MB

MD5
4e86980d464f13753bbaf0d26fed7c38

SHA1
7dde6270f5bc84d176b58e01693b2dc59aee4c0a

SHA256
12a69496356682d1a84d1b4d249e3bbaf51f70ae06dfd72fe9d1fec50feaca5a

SHA512
2e7cb4530a3028e2acb54701fb13ac33a2dbd64add330d25bd539a1d8bd020fe7380e7c79114c6a98b38c106224f65bfd9b2365a5fb7246c29473411cb4a4f93

Download Submit
memory/532-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/532-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/532-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/532-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/532-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-17-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2668-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2668-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2668-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2668-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2668-8-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2668-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads