tofsee | 917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 20:03

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General

Target

JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe
Size

198KB
MD5

877d8205339dfa2e4ecfb93d63f7fa23
SHA1

3aa8853f92a19679cb10c325a885358713d9a00c
SHA256

917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad
SHA512

0a410290fad21ded397a6571e996c75f299833087f850cff0fa74cbadf6186a4a281828e6dcee96dcec94eabd28b1ed67c6a883f5f9d5afdacbb08533b7fadc7
SSDEEP

3072:LHzWdaO0VDX4runRUEI5lkrcPI1ZeVRL8EuSzgz:LTWdabDXvRrncPI1qNuSzy

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\ychkxloo = "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
2752	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\ychkxloo\ImagePath = "C:\\Windows\\SysWOW64\\ychkxloo\\kwiqqbqy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2916	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	kwiqqbqy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2916	2832	kwiqqbqy.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
592	sc.exe
2704	sc.exe
2804	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	sc.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	kwiqqbqy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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 1792 wrote to memory of 2680	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	30
PID 1792 wrote to memory of 2680	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	30
PID 1792 wrote to memory of 2680	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	30
PID 1792 wrote to memory of 2680	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	30
PID 1792 wrote to memory of 3060	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	33
PID 1792 wrote to memory of 3060	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	33
PID 1792 wrote to memory of 3060	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	33
PID 1792 wrote to memory of 3060	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	33
PID 1792 wrote to memory of 592	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	35
PID 1792 wrote to memory of 592	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	35
PID 1792 wrote to memory of 592	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	35
PID 1792 wrote to memory of 592	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	35
PID 1792 wrote to memory of 2704	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	37
PID 1792 wrote to memory of 2704	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	37
PID 1792 wrote to memory of 2704	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	37
PID 1792 wrote to memory of 2704	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	37
PID 1792 wrote to memory of 2804	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	39
PID 1792 wrote to memory of 2804	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	39
PID 1792 wrote to memory of 2804	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	39
PID 1792 wrote to memory of 2804	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	39
PID 1792 wrote to memory of 2752	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	42
PID 1792 wrote to memory of 2752	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	42
PID 1792 wrote to memory of 2752	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	42
PID 1792 wrote to memory of 2752	1792	JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe	42
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44
PID 2832 wrote to memory of 2916	2832	kwiqqbqy.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ychkxloo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwiqqbqy.exe" C:\Windows\SysWOW64\ychkxloo\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ychkxloo binPath= "C:\Windows\SysWOW64\ychkxloo\kwiqqbqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ychkxloo "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ychkxloo
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- 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:2752

C:\Windows\SysWOW64\ychkxloo\kwiqqbqy.exe
C:\Windows\SysWOW64\ychkxloo\kwiqqbqy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_917368c18dca5da70a2ce08f415dce2a4224bcb6d59af20d5791db873d364cad.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2916

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\kwiqqbqy.exe

Filesize
14.0MB

MD5
55ce5d87422f5023cca2b083c744e3c0

SHA1
fba600beaeb8a1cf5b3706b71b500a2f5e7cd1e3

SHA256
90fad47a689afcbde0f271ac35692b03894ecda5867ebcb970472b7a3352ed3b

SHA512
3ce072310d0577d713a2eca73f4a9c1d0875250ca6d33915e68827fda9b5d1db202a555bf35f5b60f80b452eba6b68b560838f06dfaf515d6b07f0ae1ead512e

Download Submit
memory/1792-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/1792-3-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/1792-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1792-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1792-9-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2832-15-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/2916-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads