tofsee | 0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 20:16

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General

Target

JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe
Size

335KB
MD5

d164b7e53713d904c884e9ee3df58b5a
SHA1

be320a568b20a7a5893ee4be349cb880f2522b82
SHA256

0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8
SHA512

5b7b243b55fce4b1d73058e3a8a708cbb8e18b70df52fe8823d0b62a67a23d229edbb29c0a95de2dead90a473a4b420da32b22a435267e6aa78c4ff4a12dd747
SSDEEP

6144:ShdLr+GOjR+kcLTU4EGcOqYmI+Y7S5ILF84v2:SbqjR+FfU4EGr1m87S5u+4

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\vvrgnmui = "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
2640	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\vvrgnmui\ImagePath = "C:\\Windows\\SysWOW64\\vvrgnmui\\efdnqjoz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
264	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	efdnqjoz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 264	2792	efdnqjoz.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2140	sc.exe
2888	sc.exe
2736	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	efdnqjoz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2256	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	29
PID 2236 wrote to memory of 2256	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	29
PID 2236 wrote to memory of 2256	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	29
PID 2236 wrote to memory of 2256	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	29
PID 2236 wrote to memory of 2924	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	31
PID 2236 wrote to memory of 2924	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	31
PID 2236 wrote to memory of 2924	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	31
PID 2236 wrote to memory of 2924	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	31
PID 2236 wrote to memory of 2140	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	33
PID 2236 wrote to memory of 2140	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	33
PID 2236 wrote to memory of 2140	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	33
PID 2236 wrote to memory of 2140	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	33
PID 2236 wrote to memory of 2888	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	35
PID 2236 wrote to memory of 2888	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	35
PID 2236 wrote to memory of 2888	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	35
PID 2236 wrote to memory of 2888	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	35
PID 2236 wrote to memory of 2736	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	37
PID 2236 wrote to memory of 2736	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	37
PID 2236 wrote to memory of 2736	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	37
PID 2236 wrote to memory of 2736	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	37
PID 2236 wrote to memory of 2640	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	39
PID 2236 wrote to memory of 2640	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	39
PID 2236 wrote to memory of 2640	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	39
PID 2236 wrote to memory of 2640	2236	JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe	39
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42
PID 2792 wrote to memory of 264	2792	efdnqjoz.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vvrgnmui\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\efdnqjoz.exe" C:\Windows\SysWOW64\vvrgnmui\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vvrgnmui binPath= "C:\Windows\SysWOW64\vvrgnmui\efdnqjoz.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vvrgnmui "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vvrgnmui
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- 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:2640

C:\Windows\SysWOW64\vvrgnmui\efdnqjoz.exe
C:\Windows\SysWOW64\vvrgnmui\efdnqjoz.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d3a85ef6598674399444a09d4d214a043237a6210ee28b86cf85af04bdefde8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:264

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\efdnqjoz.exe

Filesize
14.3MB

MD5
b83eab86bdc65bbaf542f57bc227042f

SHA1
c7a26922bbdabd77b900eb6375ca4304532a2feb

SHA256
5d5d9edab89a5d0062db1ef2863146e6b5ed18a6a91f47ec94bf1f7dba55cdf9

SHA512
820665b2cb71c3272c0feebd19ee17679cdef3ec5796b7a40a83777c4f64c38e66988eb45d5016408440c9cf51fe41ade4f26bc9482a7ff09348318434a35a13

Download Submit
memory/264-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/264-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/264-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2236-4-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/2236-1-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2236-7-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download
memory/2236-10-0x0000000002CB0000-0x0000000002DB0000-memory.dmp

Filesize
1024KB

Download
memory/2236-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2236-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2792-18-0x0000000000400000-0x0000000002B4D000-memory.dmp

Filesize
39.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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