tofsee | f303448daa6e0457f26ae9a14cb80bf592b31550a1cb8fdc284c6bbe87494f42

General

Target

310d54057b0e553d230284fdcdd1ead1.exe
Size

335KB
MD5

310d54057b0e553d230284fdcdd1ead1
SHA1

9dab1c464e3d8e4551070e854509d4b4aae903ac
SHA256

f303448daa6e0457f26ae9a14cb80bf592b31550a1cb8fdc284c6bbe87494f42
SHA512

53c1380cd2d322a66551205246bbf9ed0803e70c5e880c4a11c1c1b33db533ce8137ee9805987a6c2979a5ab21207680e8cda05195cfadece8861d1b785a05cb
SSDEEP

3072:FkAgDr/XSqon0LUwWQ2UHxqms7/7btm52yls2LC5J8ZWwoQSwgeb7hiOiPg0tGis:FkhDr/+0LUdbKhsMs268UoSwrb7SpG

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
4152	netsh.exe

Launches sc.exe 3 IoCs

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

pid	Process
2792	sc.exe
3504	sc.exe
2804	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
1748	3324	WerFault.exe	17
2480	868	WerFault.exe	103

C:\Users\Admin\AppData\Local\Temp\310d54057b0e553d230284fdcdd1ead1.exe
"C:\Users\Admin\AppData\Local\Temp\310d54057b0e553d230284fdcdd1ead1.exe"
1⤵
PID:3324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kmogbayb\
  2⤵
  PID:3120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\expljui.exe" C:\Windows\SysWOW64\kmogbayb\
  2⤵
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kmogbayb binPath= "C:\Windows\SysWOW64\kmogbayb\expljui.exe /d\"C:\Users\Admin\AppData\Local\Temp\310d54057b0e553d230284fdcdd1ead1.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kmogbayb "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2792
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kmogbayb
  2⤵
  - Launches sc.exe
  PID:3504
- 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:4152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 1092
  2⤵
  - Program crash
  PID:1748

C:\Windows\SysWOW64\kmogbayb\expljui.exe
C:\Windows\SysWOW64\kmogbayb\expljui.exe /d"C:\Users\Admin\AppData\Local\Temp\310d54057b0e553d230284fdcdd1ead1.exe"
1⤵
PID:868
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:3820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 516
  2⤵
  - Program crash
  PID:2480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3324 -ip 3324
1⤵
PID:4360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 868 -ip 868
1⤵
PID:4656

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

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Downloads

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

Filesize
45KB

MD5
271a5ee093fd90b611d33953cef252ba

SHA1
48d90c3739ba587a8877a83bcf1a0199ca987971

SHA256
3de6f48197e37ef44a4fee816316e31badac86314f5ca7e493c05f6d17e7f41c

SHA512
a528371608f398851610302b5c7d8d628ebcbcf4a7c39ad1b2461674f38d70c6325e942f1370aed35a277ef4391c5a650c36e9866486ecde093672c926dd22ff

Download Submit
C:\Windows\SysWOW64\kmogbayb\expljui.exe

Filesize
78KB

MD5
93099aa7259cff0e289d7fd92ed01864

SHA1
b4dd0bac8ebcd98c66171f3f870850f1488eaa30

SHA256
7cdc87e18e044c68ad7bd1d33d3534b3ea60d75758e804c1a4dd4d135a6d4809

SHA512
5bf828c1f571269f59405c7595ff8745e81307d2aba5ab94a8275dfa2fb19589c3519d5ce0566f9bbf5e33fece8b7707ccbb5103359410515df17c58e63493d1

Download Submit
memory/868-17-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/868-16-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/868-10-0x00000000032D0000-0x00000000033D0000-memory.dmp

Filesize
1024KB

Download
memory/3324-7-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/3324-1-0x0000000003270000-0x0000000003370000-memory.dmp

Filesize
1024KB

Download
memory/3324-9-0x0000000004E60000-0x0000000004E73000-memory.dmp

Filesize
76KB

Download
memory/3324-4-0x0000000000400000-0x000000000324F000-memory.dmp

Filesize
46.3MB

Download
memory/3324-2-0x0000000004E60000-0x0000000004E73000-memory.dmp

Filesize
76KB

Download
memory/3820-11-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/3820-14-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/3820-15-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/3820-18-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download
memory/3820-19-0x00000000010F0000-0x0000000001105000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads