tofsee | 4c6b4d2e35397d2ab57443bbd96fda25bdfb5bf932e37dd669b794c0b4222331

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 07:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe
Size

12.8MB
MD5

0e7f9b3a9f76503087e94c2b5539df41
SHA1

325486efe485fe1506d69692d75697eb968932c7
SHA256

4c6b4d2e35397d2ab57443bbd96fda25bdfb5bf932e37dd669b794c0b4222331
SHA512

90eaf93a59d0c368658f9fadb48a9feb1c73cba0ce823b3a9cb0d986fd5ea2e73db82ed8b7cf2e95d15a941e4444d82b8a2f49b5a26fed4813c0beeda6638b7c
SSDEEP

393216:5rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr:

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\yyohsaz = "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
2560	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\yyohsaz\ImagePath = "C:\\Windows\\SysWOW64\\yyohsaz\\hfpnndmc.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2604	hfpnndmc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2604 set thread context of 2224	2604	hfpnndmc.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2808	sc.exe
2804	sc.exe
1720	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	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hfpnndmc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2756	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	30
PID 3052 wrote to memory of 2756	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	30
PID 3052 wrote to memory of 2756	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	30
PID 3052 wrote to memory of 2756	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	30
PID 3052 wrote to memory of 2748	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	32
PID 3052 wrote to memory of 2748	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	32
PID 3052 wrote to memory of 2748	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	32
PID 3052 wrote to memory of 2748	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	32
PID 3052 wrote to memory of 2808	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	34
PID 3052 wrote to memory of 2808	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	34
PID 3052 wrote to memory of 2808	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	34
PID 3052 wrote to memory of 2808	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	34
PID 3052 wrote to memory of 2804	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	36
PID 3052 wrote to memory of 2804	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	36
PID 3052 wrote to memory of 2804	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	36
PID 3052 wrote to memory of 2804	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	36
PID 3052 wrote to memory of 1720	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	38
PID 3052 wrote to memory of 1720	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	38
PID 3052 wrote to memory of 1720	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	38
PID 3052 wrote to memory of 1720	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	38
PID 3052 wrote to memory of 2560	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	41
PID 3052 wrote to memory of 2560	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	41
PID 3052 wrote to memory of 2560	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	41
PID 3052 wrote to memory of 2560	3052	0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe	41
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43
PID 2604 wrote to memory of 2224	2604	hfpnndmc.exe	43

C:\Users\Admin\AppData\Local\Temp\0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yyohsaz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hfpnndmc.exe" C:\Windows\SysWOW64\yyohsaz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yyohsaz binPath= "C:\Windows\SysWOW64\yyohsaz\hfpnndmc.exe /d\"C:\Users\Admin\AppData\Local\Temp\0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yyohsaz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yyohsaz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1720
- 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:2560

C:\Windows\SysWOW64\yyohsaz\hfpnndmc.exe
C:\Windows\SysWOW64\yyohsaz\hfpnndmc.exe /d"C:\Users\Admin\AppData\Local\Temp\0e7f9b3a9f76503087e94c2b5539df41_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2604
- 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:2224

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
11.0MB

MD5
2ee3d2fccb4958d4db46211115b69b4f

SHA1
405236a23bcd689505d0dd9954b0338e6b4e31ca

SHA256
78b66266e386520e9237277177df4ded95ae576e3037be7283280c45e265bc4c

SHA512
6f03e55b0e6a6bf74977f12e2dd1f00b4968d5eb4b4a2b6a62ace3cf7100262c83679d3bfe4d71ae2692ac0298565b389c98ca8b07523a62c1b66866f75b216f

Download Submit
memory/2224-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2224-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2224-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2224-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2224-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2604-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3052-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3052-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3052-8-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3052-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads