tofsee | 8eff3edae4ee6eca6489b3381a069390f5ed14c433029cfb0f629e6462d0b904

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 19:40

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General

Target

7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe
Size

14.5MB
MD5

7081bc2241e8d4803e2f17e06243d773
SHA1

81cef7c3ccbd978bdbad839d2ea6b10c719d8972
SHA256

8eff3edae4ee6eca6489b3381a069390f5ed14c433029cfb0f629e6462d0b904
SHA512

67863e8e8c87f3821a6fc6c69df66c2b0069ea0210fe2970814b7a508f111b8bb243669b9e09b49ab8193cdff03e9107b4dcfe753f1c951b124523dd56ec3a45
SSDEEP

24576:beI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNI1lTNIH:

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\xmpmxbrs = "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
2708	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\xmpmxbrs\ImagePath = "C:\\Windows\\SysWOW64\\xmpmxbrs\\iljeyfpz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2832	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	iljeyfpz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2680 set thread context of 2832	2680	iljeyfpz.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2868	sc.exe
2684	sc.exe
2772	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	iljeyfpz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2944	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	30
PID 2516 wrote to memory of 2944	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	30
PID 2516 wrote to memory of 2944	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	30
PID 2516 wrote to memory of 2944	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	30
PID 2516 wrote to memory of 2380	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2380	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2380	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2380	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	32
PID 2516 wrote to memory of 2868	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	34
PID 2516 wrote to memory of 2868	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	34
PID 2516 wrote to memory of 2868	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	34
PID 2516 wrote to memory of 2868	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	34
PID 2516 wrote to memory of 2684	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	36
PID 2516 wrote to memory of 2684	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	36
PID 2516 wrote to memory of 2684	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	36
PID 2516 wrote to memory of 2684	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	36
PID 2516 wrote to memory of 2772	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	38
PID 2516 wrote to memory of 2772	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	38
PID 2516 wrote to memory of 2772	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	38
PID 2516 wrote to memory of 2772	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	38
PID 2516 wrote to memory of 2708	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	41
PID 2516 wrote to memory of 2708	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	41
PID 2516 wrote to memory of 2708	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	41
PID 2516 wrote to memory of 2708	2516	7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe	41
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43
PID 2680 wrote to memory of 2832	2680	iljeyfpz.exe	43

C:\Users\Admin\AppData\Local\Temp\7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xmpmxbrs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2944
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iljeyfpz.exe" C:\Windows\SysWOW64\xmpmxbrs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xmpmxbrs binPath= "C:\Windows\SysWOW64\xmpmxbrs\iljeyfpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xmpmxbrs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xmpmxbrs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2772
- 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:2708

C:\Windows\SysWOW64\xmpmxbrs\iljeyfpz.exe
C:\Windows\SysWOW64\xmpmxbrs\iljeyfpz.exe /d"C:\Users\Admin\AppData\Local\Temp\7081bc2241e8d4803e2f17e06243d773_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2832

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\iljeyfpz.exe

Filesize
13.4MB

MD5
c3dfc3e4257519647bf41a70097aa660

SHA1
8e54f8145b1dc91dbfb0bf89fcaa91bcae49da1f

SHA256
5a91df37c4012a866ea72f440e2be60cb2db3cd1ffe60a06c4631f07ae737df5

SHA512
86bd9565ccc862106b9d3028d33d3c9f29249a0bea4a4946109a0f35f6389cb8b681b154c43bb08f9f1366a5f9dd2e06c9e40566acee02b02a7a6bc991cb55cd

Download Submit
memory/2516-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2516-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2516-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2516-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2516-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2680-15-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2832-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2832-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads