tofsee | b0d1d495f878b20a7656655008fe8418b597d5e35932d3efc344d7123f076ad1

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 00:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe
Size

12.3MB
MD5

d95293fbe2cd4c9240d36850e8cbe9af
SHA1

bc2af10130107760ec44e21966ca0780326e5f26
SHA256

b0d1d495f878b20a7656655008fe8418b597d5e35932d3efc344d7123f076ad1
SHA512

82df1c0d9d16b53adf1788ac3b3ae223959b541911cd6ca36b299bb9bdc97c790a626e8bf2dced55ee6605ce3348019bdb3f641c4b40b263ddbe461acca6ed59
SSDEEP

196608:tRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRv:

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\cuwawpgb = "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
2504	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\cuwawpgb\ImagePath = "C:\\Windows\\SysWOW64\\cuwawpgb\\tjjjypvn.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2480	tjjjypvn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2480 set thread context of 2628	2480	tjjjypvn.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2732	sc.exe
2588	sc.exe
2424	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	d95293fbe2cd4c9240d36850e8cbe9af_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tjjjypvn.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

description	pid	Process	procid_target
PID 2080 wrote to memory of 3036	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	28
PID 2080 wrote to memory of 3036	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	28
PID 2080 wrote to memory of 3036	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	28
PID 2080 wrote to memory of 3036	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	28
PID 2080 wrote to memory of 2684	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2684	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2684	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2684	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	30
PID 2080 wrote to memory of 2732	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	32
PID 2080 wrote to memory of 2732	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	32
PID 2080 wrote to memory of 2732	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	32
PID 2080 wrote to memory of 2732	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	32
PID 2080 wrote to memory of 2588	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	34
PID 2080 wrote to memory of 2588	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	34
PID 2080 wrote to memory of 2588	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	34
PID 2080 wrote to memory of 2588	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	34
PID 2080 wrote to memory of 2424	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	36
PID 2080 wrote to memory of 2424	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	36
PID 2080 wrote to memory of 2424	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	36
PID 2080 wrote to memory of 2424	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	36
PID 2080 wrote to memory of 2504	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	39
PID 2080 wrote to memory of 2504	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	39
PID 2080 wrote to memory of 2504	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	39
PID 2080 wrote to memory of 2504	2080	d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe	39
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41
PID 2480 wrote to memory of 2628	2480	tjjjypvn.exe	41

C:\Users\Admin\AppData\Local\Temp\d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cuwawpgb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tjjjypvn.exe" C:\Windows\SysWOW64\cuwawpgb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cuwawpgb binPath= "C:\Windows\SysWOW64\cuwawpgb\tjjjypvn.exe /d\"C:\Users\Admin\AppData\Local\Temp\d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cuwawpgb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cuwawpgb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2424
- 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:2504

C:\Windows\SysWOW64\cuwawpgb\tjjjypvn.exe
C:\Windows\SysWOW64\cuwawpgb\tjjjypvn.exe /d"C:\Users\Admin\AppData\Local\Temp\d95293fbe2cd4c9240d36850e8cbe9af_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- 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:2628

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tjjjypvn.exe

Filesize
13.1MB

MD5
11aa9a585e4a8312db4d12f1b798aa61

SHA1
f92d310472cb6598192f7887efc595bc68aeef43

SHA256
271e8351da5ca7c0220405de7cce760781e05f3539ff096326dcb80c20c17b06

SHA512
89305e5e4727c214af1a831e2cc302f1f1a886cb25b9dc247bfb26e66d58fabb8fda274d8f3f6da19987370d858f99720e09fa14513c333b11ebce27b458e648

Download Submit
memory/2080-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2080-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/2080-4-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2080-9-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2080-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2480-15-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2628-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads