tofsee | 705a1a64abd45caa351fcdf99d7c7d30ccb7740b7e66eb5b892e16db4bb4bbf9

General

Target

2570fd0805f9ef4070865a06a14ec7a0.exe
Size

13.2MB
MD5

2570fd0805f9ef4070865a06a14ec7a0
SHA1

164161104d9d8a343bff12048fdf578c6bbfc7f4
SHA256

705a1a64abd45caa351fcdf99d7c7d30ccb7740b7e66eb5b892e16db4bb4bbf9
SHA512

f3020219a4f1bcd7118b8579bc38dd9b56ed768d5596ed5e12791782c18a0665a8e0f29c61ca52c284860e73479acd38ac4b830507279a1d70e8adb1cb899355
SSDEEP

12288:RB9zHI0G+1OD5eLRriDvvZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZz:RBRXLlo

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

C2

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
4364	netsh.exe

Launches sc.exe 3 IoCs

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

pid	Process
756	sc.exe
4844	sc.exe
2576	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
624	2388	WerFault.exe	101
4972	4872	WerFault.exe	18

C:\Users\Admin\AppData\Local\Temp\2570fd0805f9ef4070865a06a14ec7a0.exe
"C:\Users\Admin\AppData\Local\Temp\2570fd0805f9ef4070865a06a14ec7a0.exe"
1⤵
PID:4872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vnipanuk\
  2⤵
  PID:1268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\yqvvcuos.exe" C:\Windows\SysWOW64\vnipanuk\
  2⤵
  PID:5012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vnipanuk binPath= "C:\Windows\SysWOW64\vnipanuk\yqvvcuos.exe /d\"C:\Users\Admin\AppData\Local\Temp\2570fd0805f9ef4070865a06a14ec7a0.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vnipanuk "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:4844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vnipanuk
  2⤵
  - Launches sc.exe
  PID:2576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 1044
  2⤵
  - Program crash
  PID:4972
- 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:4364

C:\Windows\SysWOW64\vnipanuk\yqvvcuos.exe
C:\Windows\SysWOW64\vnipanuk\yqvvcuos.exe /d"C:\Users\Admin\AppData\Local\Temp\2570fd0805f9ef4070865a06a14ec7a0.exe"
1⤵
PID:2388
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 560
  2⤵
  - Program crash
  PID:624
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:4420

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4872 -ip 4872
1⤵
PID:3576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2388 -ip 2388
1⤵
PID:544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1024KB

MD5
8423031f1deba7c4568ae202704bff23

SHA1
b0b8bd9555e747a675d2b8b4b6710b45d1b3aff9

SHA256
260f62f95f291c3ed97a4858d2ba8632f3d103671f4e38a371e080b6bb6f2369

SHA512
b498fc88947873d0ecc4d9b4a779cc46489985c6af0f1a28971027f2002169bd7d20fe3123952e517878e758779469f71922c5d7d9a0bf37fd9931cfadd14e76

Download Submit
C:\Windows\SysWOW64\vnipanuk\yqvvcuos.exe

Filesize
1.4MB

MD5
46216ea0ba81b42bb0b9e4d31789239e

SHA1
8313ea923544d71da9d4a90e25c7e2e47b920c36

SHA256
28fb9a8e753836270597453100720228e7ee75bffb11726adb17c9697bf8f98a

SHA512
38ec4a2f2dff05e4d94b2b8ef57e3a9cd7db0cfbeb6c09a3ff7be3eac0008c64fa87b9d33cec63d643c65388bed4a25d16538a4d731536bd23aa08c511ebca0f

Download Submit
memory/2388-12-0x0000000000400000-0x000000000324C000-memory.dmp

Filesize
46.3MB

Download
memory/2388-8-0x0000000003500000-0x0000000003600000-memory.dmp

Filesize
1024KB

Download
memory/2388-13-0x0000000000400000-0x000000000324C000-memory.dmp

Filesize
46.3MB

Download
memory/2388-16-0x00000000033A0000-0x00000000033B3000-memory.dmp

Filesize
76KB

Download
memory/4420-9-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4420-14-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4420-18-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4420-17-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4420-19-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4872-4-0x0000000000400000-0x000000000324C000-memory.dmp

Filesize
46.3MB

Download
memory/4872-1-0x0000000003480000-0x0000000003580000-memory.dmp

Filesize
1024KB

Download
memory/4872-2-0x00000000033F0000-0x0000000003403000-memory.dmp

Filesize
76KB

Download
memory/4872-15-0x0000000000400000-0x000000000324C000-memory.dmp

Filesize
46.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads