tofsee | e63b1e858d946a62434ca19dee046efa0919af7b131dff8b829a59a074542e03

Analysis

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

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
27-11-2024 23:30

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General

Target

aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe
Size

10.5MB
MD5

aa190a9ae1d43ce177ffe782289c18a2
SHA1

96a2d547b179174dbca7db8e8fef8a4fa7656523
SHA256

e63b1e858d946a62434ca19dee046efa0919af7b131dff8b829a59a074542e03
SHA512

d3a8e9bb7d4d6b17cad394699e4b82b159fa724ee2d45f820bf616c61f1d80568bacc71e7c4c26f417ba88492f612d2612f810ca62d3bb2e9d00a12f2a622d3f
SSDEEP

3072:6MlpcoyOUQmjfWVKt+KjLJK5EbaPlWrU0vyUHlJTt/NKCQlpa+1082+ECOhOhOhV:6MncF3QyfvkIVifUJ/Qf3BV

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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\atnmyfwy = "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

Processes:

netsh.exe

pid	Process
2800	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\atnmyfwy\ImagePath = "C:\\Windows\\SysWOW64\\atnmyfwy\\cakiiyhx.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
1616	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

cakiiyhx.exe

pid	Process
2640	cakiiyhx.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

cakiiyhx.exe

description	pid	Process	procid_target
PID 2640 set thread context of 1616	2640	cakiiyhx.exe	42

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2868	sc.exe
2708	sc.exe
2944	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

Processes:

netsh.exe

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

Processes:

cmd.exesc.execakiiyhx.exenetsh.exeaa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.execmd.exesc.exesc.exesvchost.exe

description	ioc	Process
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	cakiiyhx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.execakiiyhx.exe

description	pid	Process	procid_target
PID 2544 wrote to memory of 1016	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	29
PID 2544 wrote to memory of 1016	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	29
PID 2544 wrote to memory of 1016	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	29
PID 2544 wrote to memory of 1016	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	29
PID 2544 wrote to memory of 1388	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	31
PID 2544 wrote to memory of 1388	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	31
PID 2544 wrote to memory of 1388	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	31
PID 2544 wrote to memory of 1388	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	31
PID 2544 wrote to memory of 2868	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	33
PID 2544 wrote to memory of 2868	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	33
PID 2544 wrote to memory of 2868	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	33
PID 2544 wrote to memory of 2868	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	33
PID 2544 wrote to memory of 2708	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	35
PID 2544 wrote to memory of 2708	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	35
PID 2544 wrote to memory of 2708	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	35
PID 2544 wrote to memory of 2708	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	35
PID 2544 wrote to memory of 2944	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	37
PID 2544 wrote to memory of 2944	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	37
PID 2544 wrote to memory of 2944	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	37
PID 2544 wrote to memory of 2944	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	37
PID 2544 wrote to memory of 2800	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	40
PID 2544 wrote to memory of 2800	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	40
PID 2544 wrote to memory of 2800	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	40
PID 2544 wrote to memory of 2800	2544	aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe	40
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42
PID 2640 wrote to memory of 1616	2640	cakiiyhx.exe	42

C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atnmyfwy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cakiiyhx.exe" C:\Windows\SysWOW64\atnmyfwy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create atnmyfwy binPath= "C:\Windows\SysWOW64\atnmyfwy\cakiiyhx.exe /d\"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description atnmyfwy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start atnmyfwy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2944
- 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:2800

C:\Windows\SysWOW64\atnmyfwy\cakiiyhx.exe
C:\Windows\SysWOW64\atnmyfwy\cakiiyhx.exe /d"C:\Users\Admin\AppData\Local\Temp\aa190a9ae1d43ce177ffe782289c18a2_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640
- 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:1616

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\cakiiyhx.exe

Filesize
10.4MB

MD5
ff4ee9ae81b811980c6f644df244f461

SHA1
2e7a34961918fe5f892cd348da08aa8c780490be

SHA256
ce11ffc4d66dfae5d69ee61f3c8dbd0f27b489a71482fc0d7b58d45038c348c9

SHA512
76e5fd191d6e8311af7653ccb3adafde49013ce12a48aeb12a3b494e6665568ec3e89133928a93eef1ca96b4de76273ab98cfb71d76e472d280ae6b3a5de337f

Download Submit
memory/1616-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1616-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1616-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1616-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/1616-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2544-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2544-1-0x0000000000A40000-0x0000000000B40000-memory.dmp

Filesize
1024KB

Download
memory/2544-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-8-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download
memory/2544-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2544-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2640-16-0x0000000000400000-0x000000000086B000-memory.dmp

Filesize
4.4MB

Download