tofsee | 47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 18:09

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General

Target

JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe
Size

168KB
MD5

b6694bc1c3470e6fa42b39e1fce2cd13
SHA1

0762960e9f7c2277618a98869e5cb9921112aa88
SHA256

47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119
SHA512

b5b0a4d411d020df94b749fd4d103edd0fe40a320e64a77314aaa6230c47d8f308242dda6a3ccfcb15138e5e372025091eba5dd53c8707ea7f2733ec84a8e4f3
SSDEEP

3072:2Yx0uJ28EQFGlerSmgPxEquAct5A4b4CpSmS9H6dYs:90uZGleNW4AkBEad

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\asclrvoy = "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
3000	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\asclrvoy\ImagePath = "C:\\Windows\\SysWOW64\\asclrvoy\\oeeetkqi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2744	oeeetkqi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 2648	2744	oeeetkqi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2012	sc.exe
2712	sc.exe
2676	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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.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	oeeetkqi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2440	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	30
PID 2336 wrote to memory of 2440	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	30
PID 2336 wrote to memory of 2440	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	30
PID 2336 wrote to memory of 2440	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	30
PID 2336 wrote to memory of 3036	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	32
PID 2336 wrote to memory of 3036	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	32
PID 2336 wrote to memory of 3036	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	32
PID 2336 wrote to memory of 3036	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	32
PID 2336 wrote to memory of 2012	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	34
PID 2336 wrote to memory of 2012	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	34
PID 2336 wrote to memory of 2012	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	34
PID 2336 wrote to memory of 2012	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	34
PID 2336 wrote to memory of 2712	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	36
PID 2336 wrote to memory of 2712	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	36
PID 2336 wrote to memory of 2712	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	36
PID 2336 wrote to memory of 2712	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	36
PID 2336 wrote to memory of 2676	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	38
PID 2336 wrote to memory of 2676	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	38
PID 2336 wrote to memory of 2676	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	38
PID 2336 wrote to memory of 2676	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	38
PID 2336 wrote to memory of 3000	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	41
PID 2336 wrote to memory of 3000	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	41
PID 2336 wrote to memory of 3000	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	41
PID 2336 wrote to memory of 3000	2336	JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe	41
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43
PID 2744 wrote to memory of 2648	2744	oeeetkqi.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\asclrvoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oeeetkqi.exe" C:\Windows\SysWOW64\asclrvoy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create asclrvoy binPath= "C:\Windows\SysWOW64\asclrvoy\oeeetkqi.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description asclrvoy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start asclrvoy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- 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:3000

C:\Windows\SysWOW64\asclrvoy\oeeetkqi.exe
C:\Windows\SysWOW64\asclrvoy\oeeetkqi.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_47da2b60d36bad5a151d449e854f8b9588f78f8c7d981f214e97e767ec17d119.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- 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:2648

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\oeeetkqi.exe

Filesize
10.4MB

MD5
3033fc6c5b24fd4d8ef280e32f0724eb

SHA1
c1ac178b7e267f49a96b56daf1cebd4f9ee6b97e

SHA256
971f6f597fe5277a1842b805d36f18b3b0a651b564e313dc40941092ad2632b1

SHA512
a578648615e1585bfb4beece07fb1a1bf52b5af09a6ed4ecd75be793e1009d9d77bbc3ff423889169a7b243951747a03113bf3feb1be774c1766628212883f5e

Download Submit
memory/2336-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2336-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2336-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2336-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2336-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2336-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2648-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2744-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads