tofsee | abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac

Analysis

max time kernel
146s
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
22/12/2024, 12:08

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General

Target
JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe
Size 157KB
Sample241222-pbbxtsxmes
SHA256 abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac
MD5 cd6e5ac889b0cc1a71bd010f1b58ec00
SHA1 ef8533ce236484acce96615d8b1dd99a387212fc
SHA512 74f48a093c96c087bdde32c81cadaedd457acfa36fc17f64ff23ce0c303e83c489cce3e7610d565d2feba415638c00f451b6662cee5e2045c53d9bbed148e51b
SSDEEP 3072:GPEYIsfqkdK0Y4EdFN5uMum0X1Zy//S9H6:GsnsiJ0GKDZy//Ea
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
3348	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\rntivnye\ImagePath = "C:\\Windows\\SysWOW64\\rntivnye\\ubecddth.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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe

Deletes itself 1 IoCs

pid	Process
1972	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2800	ubecddth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 1972	2800	ubecddth.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2512	sc.exe
2404	sc.exe
4264	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1928	4996	WerFault.exe	83
3108	2800	WerFault.exe	95

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	svchost.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ubecddth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 3748	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	84
PID 4996 wrote to memory of 3748	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	84
PID 4996 wrote to memory of 3748	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	84
PID 4996 wrote to memory of 1200	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	86
PID 4996 wrote to memory of 1200	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	86
PID 4996 wrote to memory of 1200	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	86
PID 4996 wrote to memory of 2512	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	89
PID 4996 wrote to memory of 2512	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	89
PID 4996 wrote to memory of 2512	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	89
PID 4996 wrote to memory of 2404	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	91
PID 4996 wrote to memory of 2404	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	91
PID 4996 wrote to memory of 2404	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	91
PID 4996 wrote to memory of 4264	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	93
PID 4996 wrote to memory of 4264	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	93
PID 4996 wrote to memory of 4264	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	93
PID 4996 wrote to memory of 3348	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	96
PID 4996 wrote to memory of 3348	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	96
PID 4996 wrote to memory of 3348	4996	JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe	96
PID 2800 wrote to memory of 1972	2800	ubecddth.exe	102
PID 2800 wrote to memory of 1972	2800	ubecddth.exe	102
PID 2800 wrote to memory of 1972	2800	ubecddth.exe	102
PID 2800 wrote to memory of 1972	2800	ubecddth.exe	102
PID 2800 wrote to memory of 1972	2800	ubecddth.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rntivnye\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3748
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ubecddth.exe" C:\Windows\SysWOW64\rntivnye\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rntivnye binPath= "C:\Windows\SysWOW64\rntivnye\ubecddth.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2512
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rntivnye "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rntivnye
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4264
- 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:3348
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 628
  2⤵
  - Program crash
  PID:1928

C:\Windows\SysWOW64\rntivnye\ubecddth.exe
C:\Windows\SysWOW64\rntivnye\ubecddth.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_abb02d0e5622d63642e0ddbfcc1788078a8618a6a7c8094956d877704cb86cac.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1972
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2800 -s 512
  2⤵
  - Program crash
  PID:3108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 4996 -ip 4996
1⤵
PID:1028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2800 -ip 2800
1⤵
PID:3548

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

ubecddth.exe

Path C:\Users\Admin\AppData\Local\Temp\ubecddth.exe
Size 14.6MB
SHA256 2ea0976e65d0c65341bdc2b06f030d1439f458f2659afaeb34325884b22eefce
MD5 db8b492e10bf0be591691c98bf32e1a7
SHA1 43d1759622883d5fe045f9e7c04d7b97efbda8c0
SHA512 6540591cd692d08c8c1691cefcb39076b4a0fac0aa2d30dbf1761b589adcd61ae219b5a4a5da7ee444363b8b695bc91d7ab3ad552a6facd9371c0c6d063fd1ea
SSDEEP 24576:2yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyH:
MD5 SHA1 SHA512 SSDEEP

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memory/1972-14-0x0000000000710000-0x0000000000725000-memory.dmp

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memory/1972-17-0x0000000000710000-0x0000000000725000-memory.dmp

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memory/1972-16-0x0000000000710000-0x0000000000725000-memory.dmp

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memory/2800-13-0x0000000000400000-0x00000000004AE000-memory.dmp

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memory/2800-11-0x0000000000400000-0x00000000004AE000-memory.dmp

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memory/2800-12-0x0000000000400000-0x00000000004AE000-memory.dmp

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memory/2800-18-0x0000000000400000-0x00000000004AE000-memory.dmp

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memory/4996-9-0x0000000000760000-0x0000000000773000-memory.dmp

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memory/4996-8-0x0000000000400000-0x00000000004AE000-memory.dmp

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memory/4996-10-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4996-2-0x0000000000760000-0x0000000000773000-memory.dmp

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memory/4996-3-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/4996-1-0x0000000000810000-0x0000000000910000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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