tofsee | 5081506feb46f06efc15eb14a7deff7618a7bfbe0a42363c6478540002647c7e

Analysis

max time kernel
1s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 13:54

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General

Target

2368aa18bcdbe7be7eb90add30b17d35.exe
Size

11.8MB
MD5

2368aa18bcdbe7be7eb90add30b17d35
SHA1

39952f16bba27c35d4c8825d7ce59e01afc8daae
SHA256

5081506feb46f06efc15eb14a7deff7618a7bfbe0a42363c6478540002647c7e
SHA512

9d29520e8a23be63274687e4fa22a557d864b1161dd1e75f765bddd2b96aa2e82423ccde3b5eecc909ffd004339a46f152e8c44fd1fdbe71fcf2d617992854da
SSDEEP

12288:CKBz1FxKfGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG2:JBz1Fx

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
2744	netsh.exe

Launches sc.exe 3 IoCs

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

pid	Process
2116	sc.exe
2596	sc.exe
2712	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 2652 wrote to memory of 2896	2652	2368aa18bcdbe7be7eb90add30b17d35.exe	21
PID 2652 wrote to memory of 2896	2652	2368aa18bcdbe7be7eb90add30b17d35.exe	21
PID 2652 wrote to memory of 2896	2652	2368aa18bcdbe7be7eb90add30b17d35.exe	21
PID 2652 wrote to memory of 2896	2652	2368aa18bcdbe7be7eb90add30b17d35.exe	21

C:\Users\Admin\AppData\Local\Temp\2368aa18bcdbe7be7eb90add30b17d35.exe
"C:\Users\Admin\AppData\Local\Temp\2368aa18bcdbe7be7eb90add30b17d35.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ugulbdut\
  2⤵
  PID:2896
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\neahyxbf.exe" C:\Windows\SysWOW64\ugulbdut\
  2⤵
  PID:3036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ugulbdut binPath= "C:\Windows\SysWOW64\ugulbdut\neahyxbf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2368aa18bcdbe7be7eb90add30b17d35.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ugulbdut "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2596
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ugulbdut
  2⤵
  - Launches sc.exe
  PID:2712
- 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:2744

C:\Windows\SysWOW64\ugulbdut\neahyxbf.exe
C:\Windows\SysWOW64\ugulbdut\neahyxbf.exe /d"C:\Users\Admin\AppData\Local\Temp\2368aa18bcdbe7be7eb90add30b17d35.exe"
1⤵
PID:2620
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:2600

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/2600-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-18-0x0000000000400000-0x0000000003348000-memory.dmp

Filesize
47.3MB

Download
memory/2620-15-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2620-8-0x0000000000400000-0x0000000003348000-memory.dmp

Filesize
47.3MB

Download
memory/2652-16-0x0000000000400000-0x0000000003348000-memory.dmp

Filesize
47.3MB

Download
memory/2652-0-0x0000000000400000-0x0000000003348000-memory.dmp

Filesize
47.3MB

Download
memory/2652-2-0x00000000034A0000-0x00000000035A0000-memory.dmp

Filesize
1024KB

Download
memory/2652-5-0x0000000000400000-0x0000000003348000-memory.dmp

Filesize
47.3MB

Download
memory/2652-4-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads