tofsee | c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 05:14

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General

Target

JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe
Size

306KB
MD5

1d30a5438b113d6d62bee2d8bfc32f38
SHA1

bb31fba8bffd977b24d0435a8b64c9a990069358
SHA256

c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3
SHA512

eb056fcf5f23a1e08719b910361615313b5f35eef7b579a2862b534edf617d2b60f676c98e17200ea3ef9c619b5815d4a5346c13316dff394b70528d1d0c0352
SSDEEP

6144:9bjv5PFwxvAeFDJa98J9+UWMoE+aJamHFraqT41:xv5PFwxvxF39+4oBaX0qT4

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\yzgxbdqr = "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
2544	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\yzgxbdqr\ImagePath = "C:\\Windows\\SysWOW64\\yzgxbdqr\\kwiqqbqy.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2572	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2552	kwiqqbqy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2552 set thread context of 2572	2552	kwiqqbqy.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2816	sc.exe
2804	sc.exe
2820	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	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.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	kwiqqbqy.exe
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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2364	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	30
PID 2020 wrote to memory of 2364	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	30
PID 2020 wrote to memory of 2364	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	30
PID 2020 wrote to memory of 2364	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	30
PID 2020 wrote to memory of 2716	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	32
PID 2020 wrote to memory of 2716	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	32
PID 2020 wrote to memory of 2716	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	32
PID 2020 wrote to memory of 2716	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	32
PID 2020 wrote to memory of 2816	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	34
PID 2020 wrote to memory of 2816	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	34
PID 2020 wrote to memory of 2816	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	34
PID 2020 wrote to memory of 2816	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	34
PID 2020 wrote to memory of 2804	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	36
PID 2020 wrote to memory of 2804	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	36
PID 2020 wrote to memory of 2804	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	36
PID 2020 wrote to memory of 2804	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	36
PID 2020 wrote to memory of 2820	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	38
PID 2020 wrote to memory of 2820	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	38
PID 2020 wrote to memory of 2820	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	38
PID 2020 wrote to memory of 2820	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	38
PID 2020 wrote to memory of 2544	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	41
PID 2020 wrote to memory of 2544	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	41
PID 2020 wrote to memory of 2544	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	41
PID 2020 wrote to memory of 2544	2020	JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe	41
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43
PID 2552 wrote to memory of 2572	2552	kwiqqbqy.exe	43

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yzgxbdqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwiqqbqy.exe" C:\Windows\SysWOW64\yzgxbdqr\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yzgxbdqr binPath= "C:\Windows\SysWOW64\yzgxbdqr\kwiqqbqy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yzgxbdqr "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yzgxbdqr
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2820
- 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:2544

C:\Windows\SysWOW64\yzgxbdqr\kwiqqbqy.exe
C:\Windows\SysWOW64\yzgxbdqr\kwiqqbqy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c4870e799d9e991f54e556edb68a33fe3b134084ca1964be1f82f008627587c3.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- 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:2572

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\kwiqqbqy.exe

Filesize
14.1MB

MD5
2479c70b96516b3d9596ca15f10799c1

SHA1
90e4787e265b629ed39b96e116c172ff01b7e93a

SHA256
59175b7e0bf65ef78909e0731619c5a705428a0e8ef27306a3dc817f7ead91f0

SHA512
91a5b13fc9b2968524a33c854600809d305d5728361e9cf68ed7ae99c8d9801bdee11077bbcbd57114f5fcba154192f401d2120ed9e4b6274b0008ca56ddb279

Download Submit
memory/2020-8-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2020-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2020-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2020-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2020-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2020-1-0x0000000002D70000-0x0000000002E70000-memory.dmp

Filesize
1024KB

Download
memory/2552-17-0x0000000000400000-0x0000000002B94000-memory.dmp

Filesize
39.6MB

Download
memory/2572-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2572-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2572-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2572-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads