tofsee | ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a

Analysis

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

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 22:10

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General

Target

JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe
Size

153KB
MD5

b1206e4d87af6babdbe3b4ca43a9bcad
SHA1

8be00ab261754a95589aa67ed147ff169ef124d0
SHA256

ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a
SHA512

6a4ae0319e3a83b679e81e9496ec365d14fe0c4dd91eefb6dcea3e5fec8151ea67761e32ee24bc5710121f021f73062bab3a7dd2806c789ad2d7724c9fb34b08
SSDEEP

3072:I1R6lAXozVklu0SzKei5pgE+BHMZu0Oyz:I762XCVKSHV8Oc

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\pdppzijn = "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
2588	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\pdppzijn\ImagePath = "C:\\Windows\\SysWOW64\\pdppzijn\\amhelkky.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2608	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2860	amhelkky.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2608	2860	amhelkky.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2324	sc.exe
2372	sc.exe
2176	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	amhelkky.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2956	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	29
PID 2840 wrote to memory of 2956	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	29
PID 2840 wrote to memory of 2956	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	29
PID 2840 wrote to memory of 2956	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	29
PID 2840 wrote to memory of 2952	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	31
PID 2840 wrote to memory of 2952	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	31
PID 2840 wrote to memory of 2952	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	31
PID 2840 wrote to memory of 2952	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	31
PID 2840 wrote to memory of 2324	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	33
PID 2840 wrote to memory of 2324	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	33
PID 2840 wrote to memory of 2324	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	33
PID 2840 wrote to memory of 2324	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	33
PID 2840 wrote to memory of 2372	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	35
PID 2840 wrote to memory of 2372	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	35
PID 2840 wrote to memory of 2372	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	35
PID 2840 wrote to memory of 2372	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	35
PID 2840 wrote to memory of 2176	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	37
PID 2840 wrote to memory of 2176	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	37
PID 2840 wrote to memory of 2176	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	37
PID 2840 wrote to memory of 2176	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	37
PID 2840 wrote to memory of 2588	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	40
PID 2840 wrote to memory of 2588	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	40
PID 2840 wrote to memory of 2588	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	40
PID 2840 wrote to memory of 2588	2840	JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe	40
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42
PID 2860 wrote to memory of 2608	2860	amhelkky.exe	42

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pdppzijn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amhelkky.exe" C:\Windows\SysWOW64\pdppzijn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2952
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pdppzijn binPath= "C:\Windows\SysWOW64\pdppzijn\amhelkky.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pdppzijn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pdppzijn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2176
- 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:2588

C:\Windows\SysWOW64\pdppzijn\amhelkky.exe
C:\Windows\SysWOW64\pdppzijn\amhelkky.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea371cd3d1ac8c8787e90acfa0c4022e6b770fcbc5dc996ea95e4af15ed8e46a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860
- 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:2608

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\amhelkky.exe

Filesize
14.1MB

MD5
df9cf0ec1e7ff78b19fffc7beb197e25

SHA1
371817789ed0ff7dfe77b502c0d88307a5d5bcd5

SHA256
92f3932a68b41ae60a53a12380843dba8187e5d12b1d26d8c839d044778413bd

SHA512
f43aa9b4e317d2edefee9281eef91f8da1403a9386080facbb82ce8698dc3b901c7fe5b896bbd5392c3a6e14911a189977ddc3c98bf6ee701af931b8c5a3fca9

Download Submit
memory/2608-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2608-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2840-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-2-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2840-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2840-9-0x00000000002B0000-0x00000000002C3000-memory.dmp

Filesize
76KB

Download
memory/2840-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2840-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2860-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads