tofsee | 52a94a2896aa197e2bed53e7cac93e55be17aa9e461a3fc31d88752aedfc33e4

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-10-2024 20:16

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General

Target

74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe
Size

13.8MB
MD5

74dc2690a43fc65a8b0bb7daec660407
SHA1

944614d079eb7808dd23feee5c7eb54897f6b117
SHA256

52a94a2896aa197e2bed53e7cac93e55be17aa9e461a3fc31d88752aedfc33e4
SHA512

13d59dae9b7288aeb1c1662a0be06c5e72161dca8f663ae07b91e20a3d49b3e351cc7cda13565252a5107579b2125944f3e566d9507330dea3a49a0dae0611e4
SSDEEP

24576:uPTYeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee3:uP

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

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\bveifhlq = "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
2732	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\bveifhlq\ImagePath = "C:\\Windows\\SysWOW64\\bveifhlq\\ushtnjuk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	ushtnjuk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2424 set thread context of 2636	2424	ushtnjuk.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2508	sc.exe
2344	sc.exe
1700	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	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ushtnjuk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2136	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	30
PID 2708 wrote to memory of 2136	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	30
PID 2708 wrote to memory of 2136	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	30
PID 2708 wrote to memory of 2136	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	30
PID 2708 wrote to memory of 2332	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	32
PID 2708 wrote to memory of 2332	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	32
PID 2708 wrote to memory of 2332	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	32
PID 2708 wrote to memory of 2332	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	32
PID 2708 wrote to memory of 2344	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	34
PID 2708 wrote to memory of 2344	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	34
PID 2708 wrote to memory of 2344	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	34
PID 2708 wrote to memory of 2344	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	34
PID 2708 wrote to memory of 1700	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	36
PID 2708 wrote to memory of 1700	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	36
PID 2708 wrote to memory of 1700	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	36
PID 2708 wrote to memory of 1700	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	36
PID 2708 wrote to memory of 2508	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	38
PID 2708 wrote to memory of 2508	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	38
PID 2708 wrote to memory of 2508	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	38
PID 2708 wrote to memory of 2508	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	38
PID 2708 wrote to memory of 2732	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	41
PID 2708 wrote to memory of 2732	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	41
PID 2708 wrote to memory of 2732	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	41
PID 2708 wrote to memory of 2732	2708	74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe	41
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43
PID 2424 wrote to memory of 2636	2424	ushtnjuk.exe	43

C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bveifhlq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ushtnjuk.exe" C:\Windows\SysWOW64\bveifhlq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2332
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bveifhlq binPath= "C:\Windows\SysWOW64\bveifhlq\ushtnjuk.exe /d\"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2344
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bveifhlq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1700
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bveifhlq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- 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:2732

C:\Windows\SysWOW64\bveifhlq\ushtnjuk.exe
C:\Windows\SysWOW64\bveifhlq\ushtnjuk.exe /d"C:\Users\Admin\AppData\Local\Temp\74dc2690a43fc65a8b0bb7daec660407_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2424
- 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:2636

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\ushtnjuk.exe

Filesize
11.9MB

MD5
ca78599edbdb0d087cdee6d0c3d778f1

SHA1
0506874274c405be6570a090786cf1760fc80be3

SHA256
4ccc3390e03dab89809e30924271506e8fc8a04dffba15f6a872fd0f09151911

SHA512
cdc2af0f299dfc9b5e9aab8159b6284c118ee4e71b122a9d5b78189daade45675f27b74b6ed5194d4c2a8df82f44181c5b29aac8f660b02d4f52714bd2075164

Download Submit
memory/2424-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2636-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2636-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2708-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2708-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2708-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2708-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2708-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads