tofsee | 7d18bef53b53754a23ae16ded0805921fd40ee40e507fc80460a92615fe4b04b

Analysis

max time kernel
163s
max time network
187s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 02:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

01712cc25c0c3cfcfab253e2cad522cd.exe
Size

12.8MB
MD5

01712cc25c0c3cfcfab253e2cad522cd
SHA1

93696f36d9ce738af89157525cdf9aeaf4865281
SHA256

7d18bef53b53754a23ae16ded0805921fd40ee40e507fc80460a92615fe4b04b
SHA512

0ae8306a2a045300c2a0cf6eb1aa08fdc10ad7c155c6ccfa2deb1bad4330e383063bb16b5ff136466c440d0b33ee8da92a0c9c2159c38b6ef2173cf6571f0bae
SSDEEP

98304:uKlllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllB:

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\xwafdrh = "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
2652	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\xwafdrh\ImagePath = "C:\\Windows\\SysWOW64\\xwafdrh\\zmyvobgq.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1956	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1136	zmyvobgq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 1956	1136	zmyvobgq.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2340	sc.exe
2612	sc.exe
1632	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 2776 wrote to memory of 2728	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	27
PID 2776 wrote to memory of 2728	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	27
PID 2776 wrote to memory of 2728	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	27
PID 2776 wrote to memory of 2728	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	27
PID 2776 wrote to memory of 2744	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	29
PID 2776 wrote to memory of 2744	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	29
PID 2776 wrote to memory of 2744	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	29
PID 2776 wrote to memory of 2744	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	29
PID 2776 wrote to memory of 2340	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	31
PID 2776 wrote to memory of 2340	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	31
PID 2776 wrote to memory of 2340	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	31
PID 2776 wrote to memory of 2340	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	31
PID 2776 wrote to memory of 2612	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	33
PID 2776 wrote to memory of 2612	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	33
PID 2776 wrote to memory of 2612	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	33
PID 2776 wrote to memory of 2612	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	33
PID 2776 wrote to memory of 1632	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	35
PID 2776 wrote to memory of 1632	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	35
PID 2776 wrote to memory of 1632	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	35
PID 2776 wrote to memory of 1632	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	35
PID 2776 wrote to memory of 2652	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	37
PID 2776 wrote to memory of 2652	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	37
PID 2776 wrote to memory of 2652	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	37
PID 2776 wrote to memory of 2652	2776	01712cc25c0c3cfcfab253e2cad522cd.exe	37
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42
PID 1136 wrote to memory of 1956	1136	zmyvobgq.exe	42

C:\Users\Admin\AppData\Local\Temp\01712cc25c0c3cfcfab253e2cad522cd.exe
"C:\Users\Admin\AppData\Local\Temp\01712cc25c0c3cfcfab253e2cad522cd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xwafdrh\
  2⤵
  PID:2728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zmyvobgq.exe" C:\Windows\SysWOW64\xwafdrh\
  2⤵
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xwafdrh binPath= "C:\Windows\SysWOW64\xwafdrh\zmyvobgq.exe /d\"C:\Users\Admin\AppData\Local\Temp\01712cc25c0c3cfcfab253e2cad522cd.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xwafdrh "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xwafdrh
  2⤵
  - Launches sc.exe
  PID:1632
- 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:2652

C:\Windows\SysWOW64\xwafdrh\zmyvobgq.exe
C:\Windows\SysWOW64\xwafdrh\zmyvobgq.exe /d"C:\Users\Admin\AppData\Local\Temp\01712cc25c0c3cfcfab253e2cad522cd.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:1956

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\zmyvobgq.exe

Filesize
3.2MB

MD5
635388218c70de096d42ae6dabf45c2e

SHA1
50f21b64d77baaff21aafa33ea782e417a589754

SHA256
49d80f9cbf4bb8eaf0b56e9e7452003b837c2aaed19548eeaf3dc182a82d9b37

SHA512
906b6406f9e72bb6d376f8cf53350987edb9306ae2d8f22b36b2eb476eec83306647a69242620d0c863d3df300bef6926a53362bb22bdaa312190a599880fcfb

Download Submit
C:\Windows\SysWOW64\xwafdrh\zmyvobgq.exe

Filesize
85KB

MD5
804f84f7e53df168f3a5dcc9246bf8d0

SHA1
1906246645e225bce0f110926c4a7ca068408733

SHA256
fae02582bd26f9bc98971850a52ad04809dc8dd4f2261250b470f94c712cce15

SHA512
58c21b8ed40be761c5cb8cdb9528d96fadaa64968854fcf0453b22561b9012f225816b7867417aa12ab8c506eaeb61d4b21c438ede22de8cecb8040a3cafb59c

Download Submit
memory/1136-10-0x00000000038A0000-0x00000000039A0000-memory.dmp

Filesize
1024KB

Download
memory/1136-22-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1136-16-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1136-19-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/1956-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1956-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1956-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1956-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1956-21-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1956-20-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/1956-23-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2776-7-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2776-4-0x0000000000400000-0x00000000036CD000-memory.dmp

Filesize
50.8MB

Download
memory/2776-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2776-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads