tofsee | 242b45857eeb58a9c9b74475a921f96eb152699e0b8f67d98c5e6553affbc789

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-12-2024 09:35

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General

Target

f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe
Size

13.6MB
MD5

f3615a826a17f76a936beb423b94465b
SHA1

2068b6d190eafc00f96a5a853cd2b457066942ae
SHA256

242b45857eeb58a9c9b74475a921f96eb152699e0b8f67d98c5e6553affbc789
SHA512

5d0e69efa747eaaabb629510006acadc5ac4ce3909e796bafffbf1d48ce08bae9ead3b1a7e5894e581ff9f3457b6b913ba11afd22dd74dfc1b6f0a324680c220
SSDEEP

196608:4ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff3:

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\ouxujnuf = "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
2760	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\ouxujnuf\ImagePath = "C:\\Windows\\SysWOW64\\ouxujnuf\\dgeztaku.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	dgeztaku.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2588	2784	dgeztaku.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2844	sc.exe
1916	sc.exe
2708	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dgeztaku.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3615a826a17f76a936beb423b94465b_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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2340	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	31
PID 3008 wrote to memory of 2340	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	31
PID 3008 wrote to memory of 2340	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	31
PID 3008 wrote to memory of 2340	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	31
PID 3008 wrote to memory of 2204	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	33
PID 3008 wrote to memory of 2204	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	33
PID 3008 wrote to memory of 2204	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	33
PID 3008 wrote to memory of 2204	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	33
PID 3008 wrote to memory of 2844	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	35
PID 3008 wrote to memory of 2844	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	35
PID 3008 wrote to memory of 2844	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	35
PID 3008 wrote to memory of 2844	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	35
PID 3008 wrote to memory of 1916	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	37
PID 3008 wrote to memory of 1916	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	37
PID 3008 wrote to memory of 1916	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	37
PID 3008 wrote to memory of 1916	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	37
PID 3008 wrote to memory of 2708	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	39
PID 3008 wrote to memory of 2708	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	39
PID 3008 wrote to memory of 2708	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	39
PID 3008 wrote to memory of 2708	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	39
PID 3008 wrote to memory of 2760	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	42
PID 3008 wrote to memory of 2760	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	42
PID 3008 wrote to memory of 2760	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	42
PID 3008 wrote to memory of 2760	3008	f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe	42
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44
PID 2784 wrote to memory of 2588	2784	dgeztaku.exe	44

C:\Users\Admin\AppData\Local\Temp\f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ouxujnuf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dgeztaku.exe" C:\Windows\SysWOW64\ouxujnuf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ouxujnuf binPath= "C:\Windows\SysWOW64\ouxujnuf\dgeztaku.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ouxujnuf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ouxujnuf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- 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:2760

C:\Windows\SysWOW64\ouxujnuf\dgeztaku.exe
C:\Windows\SysWOW64\ouxujnuf\dgeztaku.exe /d"C:\Users\Admin\AppData\Local\Temp\f3615a826a17f76a936beb423b94465b_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2588

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\dgeztaku.exe

Filesize
14.1MB

MD5
9f93d1b74ca4bd7d0e5c31c7d2a674d4

SHA1
bd5be65ce416f560dcb5ce630c043ac8704f6db2

SHA256
09a5b4539d05aba5156c087a517f23a2e0366ca38d3bfdecd34a379430b902f8

SHA512
fd3defb4b1df0d1165fbd9bb51f81e14c452a283c28d83b4b5e4ebfe366aef8de8e940594fc2ccb28b0f88a1e16d9aba9e62f590383825a2755218832552d978

Download Submit
memory/2588-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2784-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3008-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3008-2-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/3008-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/3008-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3008-9-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/3008-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads