tofsee | 2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/12/2024, 17:39

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General

Target

JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe
Size

333KB
MD5

0d81591c91af26ef156bb2303634dc1c
SHA1

75fe41b23cd10e46789557d7291bb3d5a41f5d06
SHA256

2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0
SHA512

0bd8277d5f6d3a348d280122a089cda996936023ff7e9fd849cb684ddd3403c9ed90e6431d15be608207f5f590a49653b350423811d74d98a5aa0d7a6bbcae71
SSDEEP

6144:xo2WWlmy0uqXGcQnZrwdVi0prOJLZZ5e6719ZIe:+2WWlmnRQnZrwdVi0hcLZZxpDIe

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\icfozryv = "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
2764	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\icfozryv\ImagePath = "C:\\Windows\\SysWOW64\\icfozryv\\fgeorkpa.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2724	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	fgeorkpa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2724	2832	fgeorkpa.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2792	sc.exe
484	sc.exe
2820	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fgeorkpa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.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	svchost.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2960	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	31
PID 2376 wrote to memory of 2960	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	31
PID 2376 wrote to memory of 2960	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	31
PID 2376 wrote to memory of 2960	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	31
PID 2376 wrote to memory of 2112	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	33
PID 2376 wrote to memory of 2112	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	33
PID 2376 wrote to memory of 2112	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	33
PID 2376 wrote to memory of 2112	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	33
PID 2376 wrote to memory of 2792	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	35
PID 2376 wrote to memory of 2792	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	35
PID 2376 wrote to memory of 2792	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	35
PID 2376 wrote to memory of 2792	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	35
PID 2376 wrote to memory of 484	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	37
PID 2376 wrote to memory of 484	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	37
PID 2376 wrote to memory of 484	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	37
PID 2376 wrote to memory of 484	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	37
PID 2376 wrote to memory of 2820	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	39
PID 2376 wrote to memory of 2820	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	39
PID 2376 wrote to memory of 2820	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	39
PID 2376 wrote to memory of 2820	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	39
PID 2376 wrote to memory of 2764	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	42
PID 2376 wrote to memory of 2764	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	42
PID 2376 wrote to memory of 2764	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	42
PID 2376 wrote to memory of 2764	2376	JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe	42
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44
PID 2832 wrote to memory of 2724	2832	fgeorkpa.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\icfozryv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fgeorkpa.exe" C:\Windows\SysWOW64\icfozryv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create icfozryv binPath= "C:\Windows\SysWOW64\icfozryv\fgeorkpa.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description icfozryv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start icfozryv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- 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:2764

C:\Windows\SysWOW64\icfozryv\fgeorkpa.exe
C:\Windows\SysWOW64\icfozryv\fgeorkpa.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2563eeeeb403a1d81108b0c58af5d56a6189b14130e81bde97dfc8115c5c04c0.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2724

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\fgeorkpa.exe

Filesize
14.1MB

MD5
225ff679215755213ded35b8a6b2813d

SHA1
ef25ece89049da3a7e51d4fc817bf3cd3dfcc35d

SHA256
b5ae628f3897b5ec7db744b9ab323295236eb611134ba90f566f2916688b58c3

SHA512
1adc1b3822c0179b934225274be726abb50671421c435c0e3c2ab0ce2d007524ad4957976f5a8cd033bd5a11177ac663e9ce4ca58d4d2753ba83055245a6323c

Download Submit
memory/2376-1-0x0000000002C60000-0x0000000002D60000-memory.dmp

Filesize
1024KB

Download
memory/2376-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-4-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/2376-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-8-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download
memory/2724-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2724-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2832-15-0x0000000000400000-0x0000000002B4B000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads