tofsee | bb7772836afc601ff0ece2b2f1ebe85ffe73392baf08a993ae8330fdb9b04ce8

Analysis

max time kernel
2s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
08/01/2024, 10:08

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General

Target

4b2636d5375fabaf5210326d7ddf380a.exe
Size

14.4MB
MD5

4b2636d5375fabaf5210326d7ddf380a
SHA1

1a2de55ee081916d168c71bc917cd39b94332d8c
SHA256

bb7772836afc601ff0ece2b2f1ebe85ffe73392baf08a993ae8330fdb9b04ce8
SHA512

09d8b92fb0fb501e3cae709786a8f6f52434d1ae5ea03100aa69c427478b6165e6fa70776ec0ff652f1e7ece1128dc25a5328d02a022294de244236212004ff2
SSDEEP

49152:yyjfVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVH:

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
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
2580	netsh.exe

Launches sc.exe 3 IoCs

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

pid	Process
2992	sc.exe
2788	sc.exe
2720	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 4 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1732	1740	4b2636d5375fabaf5210326d7ddf380a.exe	28
PID 1740 wrote to memory of 1732	1740	4b2636d5375fabaf5210326d7ddf380a.exe	28
PID 1740 wrote to memory of 1732	1740	4b2636d5375fabaf5210326d7ddf380a.exe	28
PID 1740 wrote to memory of 1732	1740	4b2636d5375fabaf5210326d7ddf380a.exe	28

C:\Users\Admin\AppData\Local\Temp\4b2636d5375fabaf5210326d7ddf380a.exe
"C:\Users\Admin\AppData\Local\Temp\4b2636d5375fabaf5210326d7ddf380a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\plkqifff\
  2⤵
  PID:1732
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\npkqjwg.exe" C:\Windows\SysWOW64\plkqifff\
  2⤵
  PID:1852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create plkqifff binPath= "C:\Windows\SysWOW64\plkqifff\npkqjwg.exe /d\"C:\Users\Admin\AppData\Local\Temp\4b2636d5375fabaf5210326d7ddf380a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description plkqifff "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start plkqifff
  2⤵
  - Launches sc.exe
  PID:2720
- 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:2580

C:\Windows\SysWOW64\plkqifff\npkqjwg.exe
C:\Windows\SysWOW64\plkqifff\npkqjwg.exe /d"C:\Users\Admin\AppData\Local\Temp\4b2636d5375fabaf5210326d7ddf380a.exe"
1⤵
PID:2708
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:2744

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

Replay Monitor

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Downloads

memory/1740-1-0x0000000000CF0000-0x0000000000DF0000-memory.dmp

Filesize
1024KB

Download
memory/1740-4-0x0000000000400000-0x0000000000C18000-memory.dmp

Filesize
8.1MB

Download
memory/1740-7-0x0000000000400000-0x0000000000C18000-memory.dmp

Filesize
8.1MB

Download
memory/1740-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1740-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2708-12-0x0000000000400000-0x0000000000C18000-memory.dmp

Filesize
8.1MB

Download
memory/2708-10-0x0000000000250000-0x0000000000350000-memory.dmp

Filesize
1024KB

Download
memory/2708-17-0x0000000000400000-0x0000000000C18000-memory.dmp

Filesize
8.1MB

Download
memory/2744-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2744-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2744-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2744-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2744-22-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads