tofsee | 4a4cc69289edd4c28d77ddea461966cd8f52453c5b3f4a568a7b97791020d7a9

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 16:02

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General

Target

JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe
Size

237KB
MD5

26ce3fd3ed7ba17781ecac3dd4222617
SHA1

2a0ebd247fb6e3be27a1757c9bdee3148c94e55e
SHA256

4a4cc69289edd4c28d77ddea461966cd8f52453c5b3f4a568a7b97791020d7a9
SHA512

1f23f5aafb35dcac59504f823cdbbc6a67ee8830d95e8f6c2aad4bc2f4fafc66cea41b81f836e00e345ffb84f1828ab5aaa394b74e5fecf1f443ffb692b91ab2
SSDEEP

6144:C4IcgPQpVgd0OmeDnkEi7BKzzRC+TueOHW0:CBXAVgd0OmAkEieFChR

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\mfsslroc = "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
2884	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\mfsslroc\ImagePath = "C:\\Windows\\SysWOW64\\mfsslroc\\iytfzlph.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2768	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	iytfzlph.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2768	2820	iytfzlph.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2096	sc.exe
2228	sc.exe
1308	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_26ce3fd3ed7ba17781ecac3dd4222617.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	iytfzlph.exe
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	cmd.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 2252 wrote to memory of 2020	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	30
PID 2252 wrote to memory of 2020	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	30
PID 2252 wrote to memory of 2020	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	30
PID 2252 wrote to memory of 2020	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	30
PID 2252 wrote to memory of 1332	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	32
PID 2252 wrote to memory of 1332	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	32
PID 2252 wrote to memory of 1332	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	32
PID 2252 wrote to memory of 1332	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	32
PID 2252 wrote to memory of 1308	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	34
PID 2252 wrote to memory of 1308	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	34
PID 2252 wrote to memory of 1308	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	34
PID 2252 wrote to memory of 1308	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	34
PID 2252 wrote to memory of 2096	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	36
PID 2252 wrote to memory of 2096	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	36
PID 2252 wrote to memory of 2096	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	36
PID 2252 wrote to memory of 2096	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	36
PID 2252 wrote to memory of 2228	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	38
PID 2252 wrote to memory of 2228	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	38
PID 2252 wrote to memory of 2228	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	38
PID 2252 wrote to memory of 2228	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	38
PID 2252 wrote to memory of 2884	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	41
PID 2252 wrote to memory of 2884	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	41
PID 2252 wrote to memory of 2884	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	41
PID 2252 wrote to memory of 2884	2252	JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe	41
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43
PID 2820 wrote to memory of 2768	2820	iytfzlph.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mfsslroc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iytfzlph.exe" C:\Windows\SysWOW64\mfsslroc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mfsslroc binPath= "C:\Windows\SysWOW64\mfsslroc\iytfzlph.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mfsslroc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mfsslroc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2228
- 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:2884

C:\Windows\SysWOW64\mfsslroc\iytfzlph.exe
C:\Windows\SysWOW64\mfsslroc\iytfzlph.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26ce3fd3ed7ba17781ecac3dd4222617.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2768

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\iytfzlph.exe

Filesize
14.3MB

MD5
81ae72be7cab818ed71d268c3ef3c7c9

SHA1
586432b265c215a627432a6cb0e92cd30fda4711

SHA256
3b4a10bca52792667c19ffc4de0ad9dcce135b7590a7e0603c4a64cf30107a24

SHA512
3c8474bb8d81a7f1134cdb73d31bcb5802338af9e1d74f24da0990217bd13037ff56aeefc9bce7ae153e4d15d8884885d43e24b610a3928420e74d6b88202223

Download Submit
memory/2252-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2252-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2252-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2252-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2252-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

Filesize
1024KB

Download
memory/2768-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2768-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-17-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads