tofsee | e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 11:50

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General

Target

JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe
Size

243KB
MD5

efb9c0c07fd0dac85d7d7f2366c1cd94
SHA1

92e07b8e7566aa83a096f566070dd5a9d0469b1a
SHA256

e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87
SHA512

360c1a9b5261fdc3088da3feb28df8866b7f4a5e09ea9e5b66362bee0bc3858620ddeebf0c0f04e3c6fe90068945eab513ff21e6113302363139197bac20325a
SSDEEP

6144:pnZQZPsbbeUbJ676nG7zMjAcuLngy0sXt4Q7Gk:JZTbeUbJ6mAMjT3y0sXKQ

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
Tofsee family
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\rtprhzkf = "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
2768	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\rtprhzkf\ImagePath = "C:\\Windows\\SysWOW64\\rtprhzkf\\iupmtssg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	iupmtssg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2880	2852	iupmtssg.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2384	sc.exe
2500	sc.exe
2816	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iupmtssg.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2576	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	30
PID 2536 wrote to memory of 2576	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	30
PID 2536 wrote to memory of 2576	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	30
PID 2536 wrote to memory of 2576	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	30
PID 2536 wrote to memory of 2696	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	32
PID 2536 wrote to memory of 2696	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	32
PID 2536 wrote to memory of 2696	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	32
PID 2536 wrote to memory of 2696	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	32
PID 2536 wrote to memory of 2384	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	34
PID 2536 wrote to memory of 2384	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	34
PID 2536 wrote to memory of 2384	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	34
PID 2536 wrote to memory of 2384	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	34
PID 2536 wrote to memory of 2500	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	36
PID 2536 wrote to memory of 2500	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	36
PID 2536 wrote to memory of 2500	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	36
PID 2536 wrote to memory of 2500	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	36
PID 2536 wrote to memory of 2816	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	38
PID 2536 wrote to memory of 2816	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	38
PID 2536 wrote to memory of 2816	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	38
PID 2536 wrote to memory of 2816	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	38
PID 2536 wrote to memory of 2768	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	41
PID 2536 wrote to memory of 2768	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	41
PID 2536 wrote to memory of 2768	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	41
PID 2536 wrote to memory of 2768	2536	JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe	41
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43
PID 2852 wrote to memory of 2880	2852	iupmtssg.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rtprhzkf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iupmtssg.exe" C:\Windows\SysWOW64\rtprhzkf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rtprhzkf binPath= "C:\Windows\SysWOW64\rtprhzkf\iupmtssg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rtprhzkf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rtprhzkf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- 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:2768

C:\Windows\SysWOW64\rtprhzkf\iupmtssg.exe
C:\Windows\SysWOW64\rtprhzkf\iupmtssg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e363711ac1b9775290bd77d2194c0a4da0bea97397ace5db5e6749b4bb0b6b87.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2880

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\iupmtssg.exe

Filesize
14.7MB

MD5
b7d55e8645bab3d7f83b6c0cc86ba9d0

SHA1
a6f96d8a66ca1e9760e7a77e52773df7745dcc82

SHA256
245a842c6f105178a6eb0189b5906cee4502f990e3adeddc3cf733caf5c606b6

SHA512
47c502b4b7454cda9cc04b87f45f77bcc22c98a98e902e78e1b7451862873ae32ffe0937b490b4d745658eb8bc8ce93e6c4a9a3b7427b8ce25575e158f4daa67

Download Submit
memory/2536-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2536-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2536-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2536-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2536-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2852-16-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2880-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads