tofsee | a7056eb421a643c05cf9efe13243ceb5616afbe32c22463fa31c28713a75f64c

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
12-10-2024 11:47

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General

Target

39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe
Size

10.3MB
MD5

39d8d866a867f40caa5860f7bc690589
SHA1

a574a87a19336154580ba778b9f8460ee28819c4
SHA256

a7056eb421a643c05cf9efe13243ceb5616afbe32c22463fa31c28713a75f64c
SHA512

c8c5be5ca4eb79f9bffff462b0260e494a5a4e267368be95f4f7d3df67de6df73777959722ae45d90dde2eacc331a5ddd542d5cdf8fbd644b9cf662397701409
SSDEEP

49152:zGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG+:

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\jtwahqrg = "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
2544	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\jtwahqrg\ImagePath = "C:\\Windows\\SysWOW64\\jtwahqrg\\psltrtbl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3060	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	psltrtbl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 3060	2660	psltrtbl.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2680	sc.exe
2820	sc.exe
2684	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	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	psltrtbl.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	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2832	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2832	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2832	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2832	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	30
PID 2640 wrote to memory of 2872	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	32
PID 2640 wrote to memory of 2872	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	32
PID 2640 wrote to memory of 2872	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	32
PID 2640 wrote to memory of 2872	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	32
PID 2640 wrote to memory of 2680	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	34
PID 2640 wrote to memory of 2680	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	34
PID 2640 wrote to memory of 2680	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	34
PID 2640 wrote to memory of 2680	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	34
PID 2640 wrote to memory of 2820	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	36
PID 2640 wrote to memory of 2820	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	36
PID 2640 wrote to memory of 2820	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	36
PID 2640 wrote to memory of 2820	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	36
PID 2640 wrote to memory of 2684	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	38
PID 2640 wrote to memory of 2684	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	38
PID 2640 wrote to memory of 2684	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	38
PID 2640 wrote to memory of 2684	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	38
PID 2640 wrote to memory of 2544	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	41
PID 2640 wrote to memory of 2544	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	41
PID 2640 wrote to memory of 2544	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	41
PID 2640 wrote to memory of 2544	2640	39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe	41
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43
PID 2660 wrote to memory of 3060	2660	psltrtbl.exe	43

C:\Users\Admin\AppData\Local\Temp\39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jtwahqrg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\psltrtbl.exe" C:\Windows\SysWOW64\jtwahqrg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jtwahqrg binPath= "C:\Windows\SysWOW64\jtwahqrg\psltrtbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jtwahqrg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jtwahqrg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- 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:2544

C:\Windows\SysWOW64\jtwahqrg\psltrtbl.exe
C:\Windows\SysWOW64\jtwahqrg\psltrtbl.exe /d"C:\Users\Admin\AppData\Local\Temp\39d8d866a867f40caa5860f7bc690589_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2660
- 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:3060

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\psltrtbl.exe

Filesize
11.1MB

MD5
1d7a383cf11235d4b596cf55b001bd6e

SHA1
923f51ee076ab83fac7bdb52e30fa8a5846fee73

SHA256
e480a3fea11f31726b69c15415b7fbcde9405f151c796320e2868b5fec73d643

SHA512
efec8df336984f1dd67431950c88da795e8d306449fa040d9210330cb52eb49248d81e182b6a4c02551e1452c43e947cbadf1b57f61b42bde7d61d2828ec5070

Download Submit
memory/2640-8-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/2640-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2640-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2640-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2640-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2660-17-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/3060-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3060-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3060-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3060-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads