tofsee | 55a9f1cbe6fddf300a447d937630db33f557bfa3c3f7eb9209e3416775029666

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 04:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe
Size

10.1MB
MD5

cb2054f02e24360d28f3f4ef40dbfd58
SHA1

4843dc886cf394697eeb6e8ed842f1fe05d66576
SHA256

55a9f1cbe6fddf300a447d937630db33f557bfa3c3f7eb9209e3416775029666
SHA512

d83df9267a18e5a7012dbb24796f6646951c30d3655ab938917f33a668d7e6ec4a1cab09339b07d717bdffa0ed845d574582342d542890b684d72affc6157b3e
SSDEEP

24576:ZMLXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:ZM

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\icqsdyky = "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
3064	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\icqsdyky\ImagePath = "C:\\Windows\\SysWOW64\\icqsdyky\\phqyviuo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	phqyviuo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2016	2828	phqyviuo.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
1960	sc.exe
2424	sc.exe
2688	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	phqyviuo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2060	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2060	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2060	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2060	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	30
PID 1956 wrote to memory of 2516	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	32
PID 1956 wrote to memory of 2516	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	32
PID 1956 wrote to memory of 2516	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	32
PID 1956 wrote to memory of 2516	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	32
PID 1956 wrote to memory of 1960	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	34
PID 1956 wrote to memory of 1960	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	34
PID 1956 wrote to memory of 1960	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	34
PID 1956 wrote to memory of 1960	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	34
PID 1956 wrote to memory of 2424	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	36
PID 1956 wrote to memory of 2424	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	36
PID 1956 wrote to memory of 2424	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	36
PID 1956 wrote to memory of 2424	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	36
PID 1956 wrote to memory of 2688	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	38
PID 1956 wrote to memory of 2688	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	38
PID 1956 wrote to memory of 2688	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	38
PID 1956 wrote to memory of 2688	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	38
PID 1956 wrote to memory of 3064	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	41
PID 1956 wrote to memory of 3064	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	41
PID 1956 wrote to memory of 3064	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	41
PID 1956 wrote to memory of 3064	1956	cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe	41
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44
PID 2828 wrote to memory of 2016	2828	phqyviuo.exe	44

C:\Users\Admin\AppData\Local\Temp\cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\icqsdyky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\phqyviuo.exe" C:\Windows\SysWOW64\icqsdyky\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create icqsdyky binPath= "C:\Windows\SysWOW64\icqsdyky\phqyviuo.exe /d\"C:\Users\Admin\AppData\Local\Temp\cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description icqsdyky "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start icqsdyky
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2688
- 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:3064

C:\Windows\SysWOW64\icqsdyky\phqyviuo.exe
C:\Windows\SysWOW64\icqsdyky\phqyviuo.exe /d"C:\Users\Admin\AppData\Local\Temp\cb2054f02e24360d28f3f4ef40dbfd58_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2016

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\phqyviuo.exe

Filesize
12.3MB

MD5
2d1c9253e215103f9541bde21dbfb4c8

SHA1
44d74c9888df86c83e099eb0ad3c6011d3abe1ae

SHA256
6a2ab5a9048569a1108469c52620557cddfb8510ea9a0b6ae949fe0287a4ffe5

SHA512
f6902783534e5fa47268b72c88e83b3c5a59efb5bf1e7efae089dcfa7ae57e78f2c8a76d083f76a6022759975ef9e7a7f7cceacab932ac917e1d99e87f3b630c

Download Submit
memory/1956-8-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download
memory/1956-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1956-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1956-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/1956-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2016-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2016-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2016-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2016-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2016-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-16-0x0000000000400000-0x0000000002C6D000-memory.dmp

Filesize
40.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads