tofsee | df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2024, 22:11

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General

Target
JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe
Size 285KB
Sample241230-133ems1mdn
SHA256 df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d
MD5 c2ce2df162edbe6d16c197dcce8461c1
SHA1 84d5e79aaef19c342d0f7e0f4c91a4c1446c0c55
SHA512 246688b91058703e24bafd27032e87f57041772ac4a44047c7a58be7c69141b1fd4d3eb443b8756c3aecd0a8de75949ec46f603f156a41afc54e5e37ce6e10b0
SSDEEP 6144:KubLIkGEMVyknC38e3qJL6b9OOhxxdeTr/ekI:KWchEMVykSoL61zxd6L
MD5 SHA1 SHA512 SSDEEP

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
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
816	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\advjtzvr\ImagePath = "C:\\Windows\\SysWOW64\\advjtzvr\\dtttizfx.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe

Deletes itself 1 IoCs

pid	Process
3380	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2460	dtttizfx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2460 set thread context of 3380	2460	dtttizfx.exe	100

Launches sc.exe 3 IoCs

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

pid	Process
4572	sc.exe
5084	sc.exe
3504	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5076	3168	WerFault.exe	82
4116	2460	WerFault.exe	93

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	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
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	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dtttizfx.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 3904	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	83
PID 3168 wrote to memory of 3904	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	83
PID 3168 wrote to memory of 3904	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	83
PID 3168 wrote to memory of 4528	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	85
PID 3168 wrote to memory of 4528	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	85
PID 3168 wrote to memory of 4528	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	85
PID 3168 wrote to memory of 4572	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	87
PID 3168 wrote to memory of 4572	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	87
PID 3168 wrote to memory of 4572	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	87
PID 3168 wrote to memory of 5084	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	89
PID 3168 wrote to memory of 5084	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	89
PID 3168 wrote to memory of 5084	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	89
PID 3168 wrote to memory of 3504	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	91
PID 3168 wrote to memory of 3504	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	91
PID 3168 wrote to memory of 3504	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	91
PID 3168 wrote to memory of 816	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	94
PID 3168 wrote to memory of 816	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	94
PID 3168 wrote to memory of 816	3168	JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe	94
PID 2460 wrote to memory of 3380	2460	dtttizfx.exe	100
PID 2460 wrote to memory of 3380	2460	dtttizfx.exe	100
PID 2460 wrote to memory of 3380	2460	dtttizfx.exe	100
PID 2460 wrote to memory of 3380	2460	dtttizfx.exe	100
PID 2460 wrote to memory of 3380	2460	dtttizfx.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\advjtzvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dtttizfx.exe" C:\Windows\SysWOW64\advjtzvr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create advjtzvr binPath= "C:\Windows\SysWOW64\advjtzvr\dtttizfx.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description advjtzvr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5084
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start advjtzvr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3504
- 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:816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 1044
  2⤵
  - Program crash
  PID:5076

C:\Windows\SysWOW64\advjtzvr\dtttizfx.exe
C:\Windows\SysWOW64\advjtzvr\dtttizfx.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df04156566c9fa82a9ecfcc43911f845d2e7941ffda2daa63b1fa06743a38e8d.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 512
  2⤵
  - Program crash
  PID:4116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3168 -ip 3168
1⤵
PID:3644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2460 -ip 2460
1⤵
PID:4300

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

dtttizfx.exe

Path C:\Users\Admin\AppData\Local\Temp\dtttizfx.exe
Size 11.1MB
SHA256 215377f18b7309f4296c34bd1283151016c8bf300248fc14e4208f5fd84a9ce3
MD5 8787fda0ca3a95136530af51fddbfa55
SHA1 42804300f7a2e76db5e9d00d5bae0ec572b16d75
SHA512 19e0220c3861cb2f93f8e6d2fce60b7b98c5695a189aa53045d4eb1b7c6e211f4f04f66137dd28bf8e424282fa52747c49bb3e4e99dc76f3e8c9e2233cc7734b
SSDEEP 196608:Ekeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeev:1eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeS
MD5 SHA1 SHA512 SSDEEP

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memory/2460-13-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2460-12-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2460-11-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/2460-18-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/3168-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3168-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

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memory/3168-8-0x0000000000400000-0x0000000000454000-memory.dmp

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memory/3168-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/3168-9-0x00000000001E0000-0x00000000001F3000-memory.dmp

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memory/3168-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

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memory/3380-14-0x0000000000420000-0x0000000000435000-memory.dmp

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memory/3380-16-0x0000000000420000-0x0000000000435000-memory.dmp

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memory/3380-17-0x0000000000420000-0x0000000000435000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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