tofsee | 19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-12-2024 02:52

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General

Target

JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe
Size

141KB
MD5

e9e3aba9f2284b54073f08fdf7c28e59
SHA1

0c5e5d05dac2bca6e05d8516ad8a789b87c4745f
SHA256

19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573
SHA512

129ff5061a607209b2570fd14ad757fd690c205cc9dbd3ed3e9c4123c29dc3e8cd400958a7469c55f9aea45a9db09e4e2854683425ad6cd9811f078328c250e0
SSDEEP

1536:s8EcWv2ZfLIPL+YqZcM3oFlf/mv9Kz3TvayvCNAVZYIpiLj5/ICTop8/1j6bqa5c:rTZwM3off/mvAauCNAVOP5QHpxTYQ

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\oyqwkwhd = "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
2816	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\oyqwkwhd\ImagePath = "C:\\Windows\\SysWOW64\\oyqwkwhd\\qoywwmvl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2564	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	qoywwmvl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 2564	2796	qoywwmvl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3008	sc.exe
3020	sc.exe
3060	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	qoywwmvl.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.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 2528 wrote to memory of 1824	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	30
PID 2528 wrote to memory of 1824	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	30
PID 2528 wrote to memory of 1824	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	30
PID 2528 wrote to memory of 1824	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	30
PID 2528 wrote to memory of 2900	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	32
PID 2528 wrote to memory of 2900	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	32
PID 2528 wrote to memory of 2900	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	32
PID 2528 wrote to memory of 2900	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	32
PID 2528 wrote to memory of 3008	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	34
PID 2528 wrote to memory of 3008	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	34
PID 2528 wrote to memory of 3008	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	34
PID 2528 wrote to memory of 3008	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	34
PID 2528 wrote to memory of 3020	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	36
PID 2528 wrote to memory of 3020	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	36
PID 2528 wrote to memory of 3020	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	36
PID 2528 wrote to memory of 3020	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	36
PID 2528 wrote to memory of 3060	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	38
PID 2528 wrote to memory of 3060	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	38
PID 2528 wrote to memory of 3060	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	38
PID 2528 wrote to memory of 3060	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	38
PID 2528 wrote to memory of 2816	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	41
PID 2528 wrote to memory of 2816	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	41
PID 2528 wrote to memory of 2816	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	41
PID 2528 wrote to memory of 2816	2528	JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe	41
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43
PID 2796 wrote to memory of 2564	2796	qoywwmvl.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oyqwkwhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qoywwmvl.exe" C:\Windows\SysWOW64\oyqwkwhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2900
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oyqwkwhd binPath= "C:\Windows\SysWOW64\oyqwkwhd\qoywwmvl.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oyqwkwhd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oyqwkwhd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3060
- 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:2816

C:\Windows\SysWOW64\oyqwkwhd\qoywwmvl.exe
C:\Windows\SysWOW64\oyqwkwhd\qoywwmvl.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19c9add646a90d6b1c70e042d50a3ce3da3c576bc4e915958fd759291f71f573.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2564

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\qoywwmvl.exe

Filesize
11.1MB

MD5
10b6b3eaf55f3a4376b3830df11e30ac

SHA1
e4ff2c197ad098de6e76c816100e2c9e41ccb830

SHA256
ca29e81989841377844672652e5b077757f0962213f36bf52f24c56dbf12e63d

SHA512
a944c46c44d227b25d6f19edc1e7d709bb9d0293f3b0443e5a2dfd2d1619351e8d380bab4cdd2be44db4c52294292d3b2c12213497855e23f2a8d167414a28d7

Download Submit
memory/2528-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2528-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2528-8-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download
memory/2528-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2528-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2564-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2564-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2796-15-0x0000000000400000-0x00000000004AA000-memory.dmp

Filesize
680KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads