tofsee | aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 20:04

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General

Target

JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe
Size

340KB
MD5

4fc5de69bdd1bbb7df7d71f154fce436
SHA1

893d9b742a2291bf75808035751b34bbc435fe7c
SHA256

aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b
SHA512

976ec301d00d28a47634ef7b1c133fb287dd1f27d575b5f60eee84cb66273cb60177f454ea7c00d64092f13abe21b2fbee9861ce01e2553bbd36ce58ee086b5c
SSDEEP

6144:MS2WA8SG69ck1We5RgrvQl2MWA+3LzKeiT:MS2WARGWL1B5RgrvQl2v/KhT

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.ru

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\avueyfpz = "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
2716	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\avueyfpz\ImagePath = "C:\\Windows\\SysWOW64\\avueyfpz\\iraiwowf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2700	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2968	iraiwowf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 2700	2968	iraiwowf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
3064	sc.exe
408	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	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	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.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	iraiwowf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2976	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	30
PID 2308 wrote to memory of 2976	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	30
PID 2308 wrote to memory of 2976	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	30
PID 2308 wrote to memory of 2976	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	30
PID 2308 wrote to memory of 2800	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	32
PID 2308 wrote to memory of 2800	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	32
PID 2308 wrote to memory of 2800	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	32
PID 2308 wrote to memory of 2800	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	32
PID 2308 wrote to memory of 2848	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	34
PID 2308 wrote to memory of 2848	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	34
PID 2308 wrote to memory of 2848	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	34
PID 2308 wrote to memory of 2848	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	34
PID 2308 wrote to memory of 3064	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	36
PID 2308 wrote to memory of 3064	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	36
PID 2308 wrote to memory of 3064	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	36
PID 2308 wrote to memory of 3064	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	36
PID 2308 wrote to memory of 408	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	38
PID 2308 wrote to memory of 408	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	38
PID 2308 wrote to memory of 408	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	38
PID 2308 wrote to memory of 408	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	38
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	41
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	41
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	41
PID 2308 wrote to memory of 2716	2308	JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe	41
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43
PID 2968 wrote to memory of 2700	2968	iraiwowf.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\avueyfpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iraiwowf.exe" C:\Windows\SysWOW64\avueyfpz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create avueyfpz binPath= "C:\Windows\SysWOW64\avueyfpz\iraiwowf.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description avueyfpz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start avueyfpz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:408
- 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:2716

C:\Windows\SysWOW64\avueyfpz\iraiwowf.exe
C:\Windows\SysWOW64\avueyfpz\iraiwowf.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa595fa7f60b53a2a70057948eb964a75860cda95e8d1f7132fc08acf80ae25b.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968
- 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:2700

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\iraiwowf.exe

Filesize
12.9MB

MD5
785048cc255771678422acb574aaa1e1

SHA1
8c08f711fd54f182fe904b3be3ed567caa2976af

SHA256
e526d750ca33766d354320c0ee2623648ca813bb30956b70d20e256664274b02

SHA512
2b38304605252f835b994f419a589701d783700aae8cf084c1669e09f37187be05a059347b248b9724a4975765780b95fb68e712ee2c3a654b7ef47835f11c93

Download Submit
memory/2308-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2308-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-4-0x0000000000400000-0x00000000008F9000-memory.dmp

Filesize
5.0MB

Download
memory/2308-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-8-0x0000000000400000-0x00000000008F9000-memory.dmp

Filesize
5.0MB

Download
memory/2700-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2700-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2700-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2968-15-0x0000000000400000-0x00000000008F9000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads