tofsee | edb58c2175190df64d2d3bd6ddd3b59970dc443da2819dfee0805af801100a0f

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-12-2023 00:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

46ef9327547c02f18b3aacd05b5cf2c1.exe
Size

12.3MB
MD5

46ef9327547c02f18b3aacd05b5cf2c1
SHA1

826d12c54a75c5c8166e8ead2407e372ca3992ca
SHA256

edb58c2175190df64d2d3bd6ddd3b59970dc443da2819dfee0805af801100a0f
SHA512

4a5f08d223cbd12e741360bf0bebbf685d9276592dc8baa9be81da8bf932bf2fa23f9fbb15128797abfb765648a01bc837c9e2e6f750254a630657d393473210
SSDEEP

6144:xvk9RADRUv1CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCa:aRAD

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

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\cvpsmkha = "0"	svchost.exe

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2600	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\cvpsmkha\ImagePath = "C:\\Windows\\SysWOW64\\cvpsmkha\\mojarlsl.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2848	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2828	mojarlsl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2828 set thread context of 2848	2828	mojarlsl.exe	40

Launches sc.exe 3 IoCs

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

pid	Process
2880	sc.exe
2928	sc.exe
2716	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2076	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	19
PID 2108 wrote to memory of 2076	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	19
PID 2108 wrote to memory of 2076	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	19
PID 2108 wrote to memory of 2076	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	19
PID 2108 wrote to memory of 2112	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	28
PID 2108 wrote to memory of 2112	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	28
PID 2108 wrote to memory of 2112	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	28
PID 2108 wrote to memory of 2112	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	28
PID 2108 wrote to memory of 2928	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	33
PID 2108 wrote to memory of 2928	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	33
PID 2108 wrote to memory of 2928	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	33
PID 2108 wrote to memory of 2928	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	33
PID 2108 wrote to memory of 2716	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	34
PID 2108 wrote to memory of 2716	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	34
PID 2108 wrote to memory of 2716	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	34
PID 2108 wrote to memory of 2716	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	34
PID 2108 wrote to memory of 2880	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	37
PID 2108 wrote to memory of 2880	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	37
PID 2108 wrote to memory of 2880	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	37
PID 2108 wrote to memory of 2880	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	37
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2828 wrote to memory of 2848	2828	mojarlsl.exe	40
PID 2108 wrote to memory of 2600	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	39
PID 2108 wrote to memory of 2600	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	39
PID 2108 wrote to memory of 2600	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	39
PID 2108 wrote to memory of 2600	2108	46ef9327547c02f18b3aacd05b5cf2c1.exe	39

C:\Users\Admin\AppData\Local\Temp\46ef9327547c02f18b3aacd05b5cf2c1.exe
"C:\Users\Admin\AppData\Local\Temp\46ef9327547c02f18b3aacd05b5cf2c1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cvpsmkha\
  2⤵
  PID:2076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mojarlsl.exe" C:\Windows\SysWOW64\cvpsmkha\
  2⤵
  PID:2112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cvpsmkha binPath= "C:\Windows\SysWOW64\cvpsmkha\mojarlsl.exe /d\"C:\Users\Admin\AppData\Local\Temp\46ef9327547c02f18b3aacd05b5cf2c1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cvpsmkha "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cvpsmkha
  2⤵
  - Launches sc.exe
  PID:2880
- 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
  PID:2600

C:\Windows\SysWOW64\svchost.exe
svchost.exe
1⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2848

C:\Windows\SysWOW64\cvpsmkha\mojarlsl.exe
C:\Windows\SysWOW64\cvpsmkha\mojarlsl.exe /d"C:\Users\Admin\AppData\Local\Temp\46ef9327547c02f18b3aacd05b5cf2c1.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

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

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
382KB

MD5
8d0a0c6af500d9b8c53fcd89aa730136

SHA1
c26dfae08886f17155f12d46a9fe72bbfe964678

SHA256
0a520cc99e11dc762e166419bc9f30de7d2f5e62a8d756542bdb4c4fddd5d626

SHA512
04ccac027480d4ea9a2e8a4c33542998df5e6284c132cd3e93b2ae85866ddad473cd12ed26ec222fc9d14f54ec1ab0c5c419e8ca720301dcdafccb9ad0996824

Download Submit
C:\Windows\SysWOW64\cvpsmkha\mojarlsl.exe

Filesize
92KB

MD5
f3679d5cd2fcbc704eef2fddad613937

SHA1
d28b5a65fff8d76316707866753a3c5172d09bb0

SHA256
7cf006808fce041d7decbc50075e0c7f14b050e67ecfd5ebf16b426ad96fc3fb

SHA512
1199846b592ba780c6183ee375074e9ac8ef3b14e23ec0014bce5653de9a6e55114a402f09bd02ba883ffff9686fc5290d6a4ea2b6dacfcbdb3fc6abbb77b495

Download Submit
memory/2108-16-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2108-0-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2108-2-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2108-1-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2828-13-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2828-7-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2848-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2848-19-0x0000000000080000-0x0000000000095000-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