tofsee | 8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d

Analysis

max time kernel
148s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 03:09

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General

Target

JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe
Size

146KB
MD5

c0cf86699b57c1a4e817c65f08a25f69
SHA1

727e999c5d2e9993a7bd1370b927dd45875ea1de
SHA256

8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d
SHA512

aa150c368aee29572b80a98adbb4a37cf6840584c1f33a46527cd86fd8801f9bd1597c7f82df59d25ee504fbd6dea58ae1c1d3c19a18587ea9d42069485c38d6
SSDEEP

3072:We68IejRUebctwq67oI2K9HJ96xBXE8qfPuml+n8z:We2eGebctwtoI2ggqf2ml+nu

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\eypithmb = "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
2736	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\eypithmb\ImagePath = "C:\\Windows\\SysWOW64\\eypithmb\\tayjojxl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2784	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2380	tayjojxl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2784	2380	tayjojxl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2364	sc.exe
1244	sc.exe
2916	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_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.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	tayjojxl.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2452	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	30
PID 2708 wrote to memory of 2452	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	30
PID 2708 wrote to memory of 2452	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	30
PID 2708 wrote to memory of 2452	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	30
PID 2708 wrote to memory of 2312	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	32
PID 2708 wrote to memory of 2312	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	32
PID 2708 wrote to memory of 2312	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	32
PID 2708 wrote to memory of 2312	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	32
PID 2708 wrote to memory of 2364	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	34
PID 2708 wrote to memory of 2364	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	34
PID 2708 wrote to memory of 2364	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	34
PID 2708 wrote to memory of 2364	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	34
PID 2708 wrote to memory of 1244	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	36
PID 2708 wrote to memory of 1244	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	36
PID 2708 wrote to memory of 1244	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	36
PID 2708 wrote to memory of 1244	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	36
PID 2708 wrote to memory of 2916	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	38
PID 2708 wrote to memory of 2916	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	38
PID 2708 wrote to memory of 2916	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	38
PID 2708 wrote to memory of 2916	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	38
PID 2708 wrote to memory of 2736	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	41
PID 2708 wrote to memory of 2736	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	41
PID 2708 wrote to memory of 2736	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	41
PID 2708 wrote to memory of 2736	2708	JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe	41
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43
PID 2380 wrote to memory of 2784	2380	tayjojxl.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eypithmb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tayjojxl.exe" C:\Windows\SysWOW64\eypithmb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eypithmb binPath= "C:\Windows\SysWOW64\eypithmb\tayjojxl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eypithmb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eypithmb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2916
- 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:2736

C:\Windows\SysWOW64\eypithmb\tayjojxl.exe
C:\Windows\SysWOW64\eypithmb\tayjojxl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8dfc923084eb00656602132b076cbde3910210b2fb85be30074b1539105c854d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- 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:2784

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\tayjojxl.exe

Filesize
11.3MB

MD5
9256dca9f4f3e3c5d3a1773834442008

SHA1
37ae251ab114398bab40ca9693031c870e3a4779

SHA256
965d0d136a53a1ef1f4f0ca87c3c6e4e70e9dec712b5cd4baabb3cace98f5a6a

SHA512
ba09009b8c3b9bd571e52cb6d19de24f575562db77fe92bcf3f6b92934c8e51db086526603e05c82d4c7c4bc26eb49a630e397d92a0bea895fb4d59734e7a31b

Download Submit
memory/2380-15-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2708-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2708-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-4-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2708-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-9-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/2784-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads