tofsee | ca7f8f6861626af97a6f68ca54f5744ba6867cc365f14500191c7e0640806137

Analysis

max time kernel
145s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 11:16

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General

Target

c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe
Size

13.6MB
MD5

c2496d5d782576cee9b980a4852aa848
SHA1

c2fba555557331a154db390b526b52235aafb12e
SHA256

ca7f8f6861626af97a6f68ca54f5744ba6867cc365f14500191c7e0640806137
SHA512

a5b797846b2f1e36f7652fcb7b8ead141a49fd5407ef7f9978be557d4a64ae0d69386e3ffb0723d1e3a20d5c84568d4cfdef05011ac0f007a46d722cc24373e1
SSDEEP

6144:3ngjLKfnGE+Nj43Gd/50NS0UG4th+d49EOVVVVVVVVVVVVVVVVVVVVVVVVVVVVVn:wiOE+Nj4Q50k0UGIh+dJ

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\bswhmfnq = "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
2816	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\bswhmfnq\ImagePath = "C:\\Windows\\SysWOW64\\bswhmfnq\\sqfrlhsi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	sqfrlhsi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 2672	2776	sqfrlhsi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
784	sc.exe
1500	sc.exe
2520	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

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	netsh.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	sqfrlhsi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.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 30 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2552	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2552	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2552	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2552	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	30
PID 2272 wrote to memory of 2532	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	32
PID 2272 wrote to memory of 2532	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	32
PID 2272 wrote to memory of 2532	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	32
PID 2272 wrote to memory of 2532	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	32
PID 2272 wrote to memory of 784	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	34
PID 2272 wrote to memory of 784	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	34
PID 2272 wrote to memory of 784	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	34
PID 2272 wrote to memory of 784	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	34
PID 2272 wrote to memory of 1500	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	36
PID 2272 wrote to memory of 1500	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	36
PID 2272 wrote to memory of 1500	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	36
PID 2272 wrote to memory of 1500	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	36
PID 2272 wrote to memory of 2520	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	38
PID 2272 wrote to memory of 2520	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	38
PID 2272 wrote to memory of 2520	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	38
PID 2272 wrote to memory of 2520	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	38
PID 2272 wrote to memory of 2816	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	41
PID 2272 wrote to memory of 2816	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	41
PID 2272 wrote to memory of 2816	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	41
PID 2272 wrote to memory of 2816	2272	c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe	41
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43
PID 2776 wrote to memory of 2672	2776	sqfrlhsi.exe	43

C:\Users\Admin\AppData\Local\Temp\c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bswhmfnq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sqfrlhsi.exe" C:\Windows\SysWOW64\bswhmfnq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2532
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create bswhmfnq binPath= "C:\Windows\SysWOW64\bswhmfnq\sqfrlhsi.exe /d\"C:\Users\Admin\AppData\Local\Temp\c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:784
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description bswhmfnq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1500
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start bswhmfnq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2520
- 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:2816

C:\Windows\SysWOW64\bswhmfnq\sqfrlhsi.exe
C:\Windows\SysWOW64\bswhmfnq\sqfrlhsi.exe /d"C:\Users\Admin\AppData\Local\Temp\c2496d5d782576cee9b980a4852aa848_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- 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:2672

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\sqfrlhsi.exe

Filesize
14.3MB

MD5
7715cfa99780d99dea74b6c5315c6d4f

SHA1
bc613a5b3bac2ea09773bf329dc064929df8e815

SHA256
85a1968fe8eb9388140e0c315bd026e296e6b1dbbee1eab0c7924c1927037bda

SHA512
068cf6c72ab0758cdbb0d31acd2c8ffb8fa3520937377dd431014a0d4f4d485f3969e975811bb6079723474531f3212c5b5c8b2d83d814c1b69390b29976e4ce

Download Submit
memory/2272-10-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2272-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2272-8-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download
memory/2272-11-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2272-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2272-9-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2672-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2672-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2672-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2672-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2776-18-0x0000000000400000-0x0000000001782000-memory.dmp

Filesize
19.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads