tofsee | 48ecbdbb956f7aa8b648d3dc806f1b0555ae6d03aac761d39c0c431116cde001

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 11:04

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General

Target

6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe
Size

14.2MB
MD5

6e8f216b8825a770e65be7dd6bbc4205
SHA1

678a3d5627cb9f024bb113135402bf40f1314a4b
SHA256

48ecbdbb956f7aa8b648d3dc806f1b0555ae6d03aac761d39c0c431116cde001
SHA512

475c2651c38a12c58f604515416e00fb94ae496db0d96e1fd691b15822d368ab4f6ea675a76a25ff6ac0a2a1bf86855764f14a2428807a2221d3aa036f21db2e
SSDEEP

12288:U6oEnffffffffffffffffffffffffffffffffffffffffffffffffffffffffff/:U6

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\uardwchl = "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
2928	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\uardwchl\ImagePath = "C:\\Windows\\SysWOW64\\uardwchl\\gvieqpiu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2308	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2880	gvieqpiu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 2308	2880	gvieqpiu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2540	sc.exe
2480	sc.exe
2752	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gvieqpiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 1140	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	30
PID 1800 wrote to memory of 1140	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	30
PID 1800 wrote to memory of 1140	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	30
PID 1800 wrote to memory of 1140	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	30
PID 1800 wrote to memory of 2348	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	32
PID 1800 wrote to memory of 2348	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	32
PID 1800 wrote to memory of 2348	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	32
PID 1800 wrote to memory of 2348	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	32
PID 1800 wrote to memory of 2540	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	34
PID 1800 wrote to memory of 2540	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	34
PID 1800 wrote to memory of 2540	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	34
PID 1800 wrote to memory of 2540	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	34
PID 1800 wrote to memory of 2480	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	36
PID 1800 wrote to memory of 2480	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	36
PID 1800 wrote to memory of 2480	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	36
PID 1800 wrote to memory of 2480	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	36
PID 1800 wrote to memory of 2752	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	38
PID 1800 wrote to memory of 2752	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	38
PID 1800 wrote to memory of 2752	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	38
PID 1800 wrote to memory of 2752	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	38
PID 1800 wrote to memory of 2928	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	41
PID 1800 wrote to memory of 2928	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	41
PID 1800 wrote to memory of 2928	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	41
PID 1800 wrote to memory of 2928	1800	6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe	41
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43
PID 2880 wrote to memory of 2308	2880	gvieqpiu.exe	43

C:\Users\Admin\AppData\Local\Temp\6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uardwchl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gvieqpiu.exe" C:\Windows\SysWOW64\uardwchl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2348
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uardwchl binPath= "C:\Windows\SysWOW64\uardwchl\gvieqpiu.exe /d\"C:\Users\Admin\AppData\Local\Temp\6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2540
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uardwchl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2480
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uardwchl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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:2928

C:\Windows\SysWOW64\uardwchl\gvieqpiu.exe
C:\Windows\SysWOW64\uardwchl\gvieqpiu.exe /d"C:\Users\Admin\AppData\Local\Temp\6e8f216b8825a770e65be7dd6bbc4205_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- 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:2308

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\gvieqpiu.exe

Filesize
14.9MB

MD5
c85893467eb7731779edc9ca06b1a800

SHA1
6648cc2346ba25c3b160355cb833e1e05ad6d04c

SHA256
a552068d6a26d090cf7e86bc09e73b66449d4e38e446e25ee14025b3e6cf679f

SHA512
2e9f04824ee01dfab7473795b498c633caaa0448893cdf6c05b3ebb8e2e007532c7bea20d95ecc72dc6a7ee4f25d73ece6dc6e19969f8138e49cea3a821be8ef

Download Submit
memory/1800-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/1800-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1800-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1800-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1800-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/1800-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2308-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2308-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2308-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2308-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2308-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2880-17-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads