tofsee | bd89ba4c450170d048d096197120db63d957a84bf4071a6e2a574a66abfb9dfe

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
21-10-2024 20:58

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General

Target

67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe
Size

12.0MB
MD5

67603f228bce87b17b5f18d57e9ed789
SHA1

1487565bd34d8e478af5dfc3522476323e2a17ea
SHA256

bd89ba4c450170d048d096197120db63d957a84bf4071a6e2a574a66abfb9dfe
SHA512

2e5505c9918e6cee80e5ff706a94e722611006216012952fd513ff24a85997c2584e1996cd8ee1c70bc23133f94b08a867de17de8f25e7ac98659c59f5c466d8
SSDEEP

12288:2b22XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX:C2

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

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\wllhstlj = "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
2800	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\wllhstlj\ImagePath = "C:\\Windows\\SysWOW64\\wllhstlj\\tamzivwq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2564	tamzivwq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 2752	2564	tamzivwq.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2504	sc.exe
2804	sc.exe
2660	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	tamzivwq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 1996	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	31
PID 2308 wrote to memory of 1996	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	31
PID 2308 wrote to memory of 1996	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	31
PID 2308 wrote to memory of 1996	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	31
PID 2308 wrote to memory of 3020	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	33
PID 2308 wrote to memory of 3020	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	33
PID 2308 wrote to memory of 3020	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	33
PID 2308 wrote to memory of 3020	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	33
PID 2308 wrote to memory of 2504	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	35
PID 2308 wrote to memory of 2504	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	35
PID 2308 wrote to memory of 2504	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	35
PID 2308 wrote to memory of 2504	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	35
PID 2308 wrote to memory of 2804	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	37
PID 2308 wrote to memory of 2804	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	37
PID 2308 wrote to memory of 2804	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	37
PID 2308 wrote to memory of 2804	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	37
PID 2308 wrote to memory of 2660	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	39
PID 2308 wrote to memory of 2660	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	39
PID 2308 wrote to memory of 2660	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	39
PID 2308 wrote to memory of 2660	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	39
PID 2308 wrote to memory of 2800	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	42
PID 2308 wrote to memory of 2800	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	42
PID 2308 wrote to memory of 2800	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	42
PID 2308 wrote to memory of 2800	2308	67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe	42
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44
PID 2564 wrote to memory of 2752	2564	tamzivwq.exe	44

C:\Users\Admin\AppData\Local\Temp\67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.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\wllhstlj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tamzivwq.exe" C:\Windows\SysWOW64\wllhstlj\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wllhstlj binPath= "C:\Windows\SysWOW64\wllhstlj\tamzivwq.exe /d\"C:\Users\Admin\AppData\Local\Temp\67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wllhstlj "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wllhstlj
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2800

C:\Windows\SysWOW64\wllhstlj\tamzivwq.exe
C:\Windows\SysWOW64\wllhstlj\tamzivwq.exe /d"C:\Users\Admin\AppData\Local\Temp\67603f228bce87b17b5f18d57e9ed789_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2564
- 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:2752

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\tamzivwq.exe

Filesize
12.0MB

MD5
49af3bb83fcdf39ea968a2c246903bbc

SHA1
ffe28ac64c0d49e0d2c3feed88167e92510ef3fa

SHA256
9134f3d1adc590ca97d990d7d26f0d20fbf3d82623be83525e4e452a6ed468b3

SHA512
77fbc3b76e16e1a791617d3427b9691e92adf8297ee88f7dc2e262551d005e05a3324ccd345b428860985850c1505b0a84b443b0ad64e703f1e82cd03431d1dd

Download Submit
memory/2308-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2308-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2308-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

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

Filesize
84KB

Download
memory/2308-8-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2564-15-0x0000000000400000-0x00000000004A9000-memory.dmp

Filesize
676KB

Download
memory/2752-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-13-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads