tofsee | f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 00:38

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General

Target

JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe
Size

166KB
MD5

367fb0a93e9ac87417d1f5b717677492
SHA1

35e334f3b6b197124f3de2f1b75d56b886445c88
SHA256

f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2
SHA512

ed12349162e8880f5ed416c36fde94fc669bf71f816345b20d3a0e553ac8c73a47d4b196364f54cd3d059e3e2cfe2bc57420e55d4c64fa646f2ff8afc3afa230
SSDEEP

3072:LclL4ayAU13WhlasNxijKEeDG/5eaHKA/EqX/aTX:AYATHNIunzaHzM2/a

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\flxbgyiz = "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
1128	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\flxbgyiz\ImagePath = "C:\\Windows\\SysWOW64\\flxbgyiz\\vpyivydp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
320	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	vpyivydp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 320	2640	vpyivydp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2608	sc.exe
2728	sc.exe
2880	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vpyivydp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 3028	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	30
PID 2372 wrote to memory of 3028	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	30
PID 2372 wrote to memory of 3028	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	30
PID 2372 wrote to memory of 3028	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	30
PID 2372 wrote to memory of 2744	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	32
PID 2372 wrote to memory of 2744	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	32
PID 2372 wrote to memory of 2744	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	32
PID 2372 wrote to memory of 2744	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	32
PID 2372 wrote to memory of 2728	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	34
PID 2372 wrote to memory of 2728	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	34
PID 2372 wrote to memory of 2728	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	34
PID 2372 wrote to memory of 2728	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	34
PID 2372 wrote to memory of 2880	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	36
PID 2372 wrote to memory of 2880	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	36
PID 2372 wrote to memory of 2880	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	36
PID 2372 wrote to memory of 2880	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	36
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	38
PID 2372 wrote to memory of 2608	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	38
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	41
PID 2372 wrote to memory of 1128	2372	JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe	41
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43
PID 2640 wrote to memory of 320	2640	vpyivydp.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\flxbgyiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3028
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vpyivydp.exe" C:\Windows\SysWOW64\flxbgyiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create flxbgyiz binPath= "C:\Windows\SysWOW64\flxbgyiz\vpyivydp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description flxbgyiz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start flxbgyiz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2608
- 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:1128

C:\Windows\SysWOW64\flxbgyiz\vpyivydp.exe
C:\Windows\SysWOW64\flxbgyiz\vpyivydp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f1adfa1faa086249af51ed20fc83cdb03399f197807c4fadaa5e8b4dcd1f04d2.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- 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:320

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\vpyivydp.exe

Filesize
14.8MB

MD5
640964513340d43821827d6d6e5da560

SHA1
0cc67de350ee426332c9772f64e5e072ea958d88

SHA256
36282c1c0a0209ccf03433b68f315bb1866104a2299e51a6a12bb85ec0deada1

SHA512
f42e80ae1efa972ad2c5a67a51ced0a41f2ed663e217ba06a43a7c83705780762f94bf25e7e8631abdef13b9848fe6e3eb5af1ed9ecce56bcef27bbe2f759207

Download Submit
memory/320-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/320-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/320-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/320-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/320-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2372-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2372-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2372-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2372-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2372-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2640-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads