tofsee | 072ff816b2373bd6ab07298e3653d98c84b6a897ef17fc8002873edd9dff7e2e

Analysis

max time kernel
1s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 11:12

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General

Target

69ea6c1bae15f0e9a51c6d7645b92119.exe
Size

13.0MB
MD5

69ea6c1bae15f0e9a51c6d7645b92119
SHA1

889d92a7c1728764aaa5d54cc134a113647f16b4
SHA256

072ff816b2373bd6ab07298e3653d98c84b6a897ef17fc8002873edd9dff7e2e
SHA512

51688cea0e7b75febda3617850401ae1813603fc543d96c67adb7ea08c5f470192dd25086ab8a30087dc32356171b6c8e5d48c3aaaefc80402826e33a376505c
SSDEEP

24576:bgdy5yNM4444444444444444444444444444444444444444444444444444444g:

Score

10^/10

tofsee evasion persistence 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
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
4980	netsh.exe

Launches sc.exe 3 IoCs

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

pid	Process
1564	sc.exe
2648	sc.exe
1996	sc.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2220	4180	WerFault.exe	16
4596	4528	WerFault.exe	99

C:\Users\Admin\AppData\Local\Temp\69ea6c1bae15f0e9a51c6d7645b92119.exe
"C:\Users\Admin\AppData\Local\Temp\69ea6c1bae15f0e9a51c6d7645b92119.exe"
1⤵
PID:4180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xnlszln\
  2⤵
  PID:4720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ddwjvsrt.exe" C:\Windows\SysWOW64\xnlszln\
  2⤵
  PID:2208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xnlszln binPath= "C:\Windows\SysWOW64\xnlszln\ddwjvsrt.exe /d\"C:\Users\Admin\AppData\Local\Temp\69ea6c1bae15f0e9a51c6d7645b92119.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:1564
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xnlszln "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xnlszln
  2⤵
  - Launches sc.exe
  PID:1996
- 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:4980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4180 -s 1228
  2⤵
  - Program crash
  PID:2220

C:\Windows\SysWOW64\xnlszln\ddwjvsrt.exe
C:\Windows\SysWOW64\xnlszln\ddwjvsrt.exe /d"C:\Users\Admin\AppData\Local\Temp\69ea6c1bae15f0e9a51c6d7645b92119.exe"
1⤵
PID:4528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 512
  2⤵
  - Program crash
  PID:4596
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:3816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4180 -ip 4180
1⤵
PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4528 -ip 4528
1⤵
PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\xnlszln\ddwjvsrt.exe

Filesize
92KB

MD5
edcb268f9fefdd9145ae3b85ec74b5b4

SHA1
b211fc605bf72b8c196fa8ae6e4b45de1f9e29a2

SHA256
b2355d70b2c747c7ae0845a4654e89b3e8a32af9f134cbfcb00e1f4be9c99538

SHA512
ea5486a0050398058085418fa02c1ab0cac21945b19350f084a872b6502ee9e8ce68004b74e272bb9b40938085ca63c869556525f5702ceafc5c93b64888d300

Download Submit
memory/3816-15-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/3816-18-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/3816-16-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/3816-12-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/3816-19-0x0000000000AE0000-0x0000000000AF5000-memory.dmp

Filesize
84KB

Download
memory/4180-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/4180-3-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4180-8-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4180-9-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/4180-2-0x00000000021A0000-0x00000000021B3000-memory.dmp

Filesize
76KB

Download
memory/4528-17-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4528-11-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4528-10-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads