tofsee | 4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 21:47

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General

Target

JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe
Size

285KB
MD5

eb0b11f7105206a3e7b2ad98b7a9fbf4
SHA1

bb314c002e1485eae7a44af5f6f0508161be8f8b
SHA256

4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a
SHA512

dd7af74ca4383110df6c67598fa3294579f42cc8fe4e9ff85d357d632bc23bdff86a40c18ef6e3706fe1a090e08d763f325afbf92dff16ce3888b68c48bdd951
SSDEEP

6144:C2FMBDEA1/ABFbOM56KUCf/w8lv/IZu5F:C2FMBDB1/YbOcUm/5IZur

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\ozdcxzjm = "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
2692	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\ozdcxzjm\ImagePath = "C:\\Windows\\SysWOW64\\ozdcxzjm\\getfzvgw.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2800	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	getfzvgw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2800	2740	getfzvgw.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2320	sc.exe
2696	sc.exe
2868	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	getfzvgw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 2996	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	31
PID 840 wrote to memory of 2996	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	31
PID 840 wrote to memory of 2996	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	31
PID 840 wrote to memory of 2996	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	31
PID 840 wrote to memory of 2504	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	33
PID 840 wrote to memory of 2504	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	33
PID 840 wrote to memory of 2504	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	33
PID 840 wrote to memory of 2504	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	33
PID 840 wrote to memory of 2320	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	35
PID 840 wrote to memory of 2320	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	35
PID 840 wrote to memory of 2320	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	35
PID 840 wrote to memory of 2320	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	35
PID 840 wrote to memory of 2696	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	37
PID 840 wrote to memory of 2696	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	37
PID 840 wrote to memory of 2696	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	37
PID 840 wrote to memory of 2696	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	37
PID 840 wrote to memory of 2868	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	39
PID 840 wrote to memory of 2868	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	39
PID 840 wrote to memory of 2868	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	39
PID 840 wrote to memory of 2868	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	39
PID 840 wrote to memory of 2692	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	42
PID 840 wrote to memory of 2692	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	42
PID 840 wrote to memory of 2692	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	42
PID 840 wrote to memory of 2692	840	JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe	42
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44
PID 2740 wrote to memory of 2800	2740	getfzvgw.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ozdcxzjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\getfzvgw.exe" C:\Windows\SysWOW64\ozdcxzjm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ozdcxzjm binPath= "C:\Windows\SysWOW64\ozdcxzjm\getfzvgw.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ozdcxzjm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ozdcxzjm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- 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:2692

C:\Windows\SysWOW64\ozdcxzjm\getfzvgw.exe
C:\Windows\SysWOW64\ozdcxzjm\getfzvgw.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4c681413678d6527aaf91c2076ad2751ed04844363d496688de68c14529d184a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- 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:2800

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\getfzvgw.exe

Filesize
12.2MB

MD5
d8ededbaf51201cfdc6526ebf1d31587

SHA1
0bdfe75f6ed290ad301b208fe8e947a7a1496a86

SHA256
70e6274fbacfe8465c3f001381ef6e1ef075695b0007aa40c783e007c3f0a7f6

SHA512
154e537a81783f32bb02c483e35afe276c47f706c0bb14b734e5e6e7e2afae395027b1f9760c133634be899332d2a604bb795d2526180d62aca3f19685865d4b

Download Submit
memory/840-8-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/840-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/840-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/840-10-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/840-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/840-1-0x0000000002D10000-0x0000000002E10000-memory.dmp

Filesize
1024KB

Download
memory/2740-15-0x0000000000400000-0x0000000002B8F000-memory.dmp

Filesize
39.6MB

Download
memory/2800-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2800-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads