tofsee | 82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721

Analysis

max time kernel
145s
max time network
144s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 22:24

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General

Target

JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe
Size

243KB
MD5

0fba569148e3b4758882dca911ad7fa8
SHA1

09c8755dfe3f733d5deaafe60ad92b47907f7d9c
SHA256

82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721
SHA512

4af517ba9d0b30fe49bbcc69adc71357f2c19b48870366a97f8c1a19627ecc811233cac98395a16694cbc2409f1e85d921e14775507a42c36d491013faca681b
SSDEEP

6144:DQZQphhKlXyYNadG6717PUJN5xmCos7SmQ751CetXH:sZDXyYNaT7cHLosSlh

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\qanfdvgi = "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
2220	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\qanfdvgi\ImagePath = "C:\\Windows\\SysWOW64\\qanfdvgi\\vlllarxp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2760	vlllarxp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 3000	2760	vlllarxp.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2736	sc.exe
2828	sc.exe
2696	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	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vlllarxp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 1980	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	31
PID 2524 wrote to memory of 1980	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	31
PID 2524 wrote to memory of 1980	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	31
PID 2524 wrote to memory of 1980	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	31
PID 2524 wrote to memory of 2436	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	33
PID 2524 wrote to memory of 2436	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	33
PID 2524 wrote to memory of 2436	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	33
PID 2524 wrote to memory of 2436	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	33
PID 2524 wrote to memory of 2696	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	35
PID 2524 wrote to memory of 2696	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	35
PID 2524 wrote to memory of 2696	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	35
PID 2524 wrote to memory of 2696	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	35
PID 2524 wrote to memory of 2736	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	37
PID 2524 wrote to memory of 2736	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	37
PID 2524 wrote to memory of 2736	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	37
PID 2524 wrote to memory of 2736	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	37
PID 2524 wrote to memory of 2828	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	39
PID 2524 wrote to memory of 2828	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	39
PID 2524 wrote to memory of 2828	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	39
PID 2524 wrote to memory of 2828	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	39
PID 2524 wrote to memory of 2220	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	42
PID 2524 wrote to memory of 2220	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	42
PID 2524 wrote to memory of 2220	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	42
PID 2524 wrote to memory of 2220	2524	JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe	42
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44
PID 2760 wrote to memory of 3000	2760	vlllarxp.exe	44

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qanfdvgi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vlllarxp.exe" C:\Windows\SysWOW64\qanfdvgi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create qanfdvgi binPath= "C:\Windows\SysWOW64\qanfdvgi\vlllarxp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description qanfdvgi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2736
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start qanfdvgi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2828
- 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:2220

C:\Windows\SysWOW64\qanfdvgi\vlllarxp.exe
C:\Windows\SysWOW64\qanfdvgi\vlllarxp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_82e5672e4354e66588d70ab01d6323a07e88e3acab3fbf89b3866982a50f3721.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:3000

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\vlllarxp.exe

Filesize
12.5MB

MD5
9379a07278ab7487ff566e2cda3b35f7

SHA1
a36581a26a6bbac8cf38c526b4830ddd077d2e37

SHA256
9c68b79a51fbccacbbb3fc8f9d9f6899c4b0422e859ce6120293ea08a513c07b

SHA512
32bde95dce2a47e785304f151192c544c7fe9b430c08db828d40f2ff12c211c2bc6a0c76a142fce1a39ad424004d6fa2480df59d688c844e2f7656fd1f7f7bc2

Download Submit
memory/2524-8-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2524-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2524-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2524-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2524-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/2760-17-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/3000-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads