tofsee | b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:48

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General

Target

JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe
Size

286KB
MD5

1d87d89e5cae2758142307159dbf0143
SHA1

95b7ae740629243758df38329095fda6ddc1b177
SHA256

b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a
SHA512

7c255ec726cbd512beb7e782da4a6e420f73f73040df5b73120d394f43b9672e9ddfdc7fb4ac6cb870beeca2283d21db4cc51ee04b5634452454eda2689dbe03
SSDEEP

6144:WYsfbwgLpgn+TfdkHXV8fskJjWwSzpOe:WTDwgpjLdaFcSd9

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\yxyvovnv = "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
2784	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\yxyvovnv\ImagePath = "C:\\Windows\\SysWOW64\\yxyvovnv\\gnqoppft.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2776	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	gnqoppft.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 2776	2520	gnqoppft.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2508	sc.exe
3060	sc.exe
2532	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	gnqoppft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2348	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	30
PID 2368 wrote to memory of 2348	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	30
PID 2368 wrote to memory of 2348	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	30
PID 2368 wrote to memory of 2348	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	30
PID 2368 wrote to memory of 1328	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	32
PID 2368 wrote to memory of 1328	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	32
PID 2368 wrote to memory of 1328	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	32
PID 2368 wrote to memory of 1328	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	32
PID 2368 wrote to memory of 2508	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	34
PID 2368 wrote to memory of 2508	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	34
PID 2368 wrote to memory of 2508	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	34
PID 2368 wrote to memory of 2508	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	34
PID 2368 wrote to memory of 3060	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	36
PID 2368 wrote to memory of 3060	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	36
PID 2368 wrote to memory of 3060	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	36
PID 2368 wrote to memory of 3060	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	36
PID 2368 wrote to memory of 2532	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	38
PID 2368 wrote to memory of 2532	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	38
PID 2368 wrote to memory of 2532	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	38
PID 2368 wrote to memory of 2532	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	38
PID 2368 wrote to memory of 2784	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	41
PID 2368 wrote to memory of 2784	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	41
PID 2368 wrote to memory of 2784	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	41
PID 2368 wrote to memory of 2784	2368	JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe	41
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43
PID 2520 wrote to memory of 2776	2520	gnqoppft.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yxyvovnv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gnqoppft.exe" C:\Windows\SysWOW64\yxyvovnv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yxyvovnv binPath= "C:\Windows\SysWOW64\yxyvovnv\gnqoppft.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yxyvovnv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yxyvovnv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2532
- 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:2784

C:\Windows\SysWOW64\yxyvovnv\gnqoppft.exe
C:\Windows\SysWOW64\yxyvovnv\gnqoppft.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b08c626eb4a8d2f29559aa943d14dc3c966e1917132a45cbcba9012e42550a2a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- 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:2776

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\gnqoppft.exe

Filesize
13.8MB

MD5
86bf985854331c7e9b6b80dd2e7f1602

SHA1
14f2cb45eeee53a0c0662a470d8ca76399ca5a73

SHA256
1d2b1f0075dce78b0cc2f5a9b517bd9ed6720db03e2d7fbc31d5f97ca67b8f67

SHA512
8dd6f0f7cde01d39fafb7c3ee5a102c4e127889c99df5394252272fd6a9bfecc216b46dd482a5fd0b7bc8649c4f0384346f0e625e1eff83ac572e68357edc1d6

Download Submit
memory/2368-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2368-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2368-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2368-10-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/2368-1-0x0000000002D30000-0x0000000002E30000-memory.dmp

Filesize
1024KB

Download
memory/2368-7-0x0000000000400000-0x0000000002B91000-memory.dmp

Filesize
39.6MB

Download
memory/2520-18-0x0000000000400000-0x0000000002B91000-memory.dmp

Filesize
39.6MB

Download
memory/2776-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2776-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads