tofsee | 22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16

Analysis

max time kernel
181s
max time network
208s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
14/11/2023, 19:11

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General

Target

22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe
Size

10.7MB
MD5

b68d1d16e51e6c79017a2374d6b072fb
SHA1

ed811cfa8711a4e34b37eac3e10d3530def45ff4
SHA256

22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16
SHA512

5a3f7acb9cd3bb29f588dcc524a048a9f9bb8cb553ff86044e8c2d682ceb541806a4b2d85818f09c5292de26b05063b77426cf5ac41824d2718ec64d56c686e8
SSDEEP

24576:xeOeLIO66666666666666666666666666666666666666666666666666666666n:Ze

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
2452	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\rulydzri\ImagePath = "C:\\Windows\\SysWOW64\\rulydzri\\baminxhu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3000	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
548	baminxhu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 548 set thread context of 3000	548	baminxhu.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
2468	sc.exe
2348	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 30 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2648	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	29
PID 2520 wrote to memory of 2648	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	29
PID 2520 wrote to memory of 2648	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	29
PID 2520 wrote to memory of 2648	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	29
PID 2520 wrote to memory of 2624	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	31
PID 2520 wrote to memory of 2624	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	31
PID 2520 wrote to memory of 2624	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	31
PID 2520 wrote to memory of 2624	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	31
PID 2520 wrote to memory of 2556	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	33
PID 2520 wrote to memory of 2556	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	33
PID 2520 wrote to memory of 2556	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	33
PID 2520 wrote to memory of 2556	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	33
PID 2520 wrote to memory of 2468	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	35
PID 2520 wrote to memory of 2468	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	35
PID 2520 wrote to memory of 2468	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	35
PID 2520 wrote to memory of 2468	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	35
PID 2520 wrote to memory of 2348	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	37
PID 2520 wrote to memory of 2348	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	37
PID 2520 wrote to memory of 2348	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	37
PID 2520 wrote to memory of 2348	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	37
PID 2520 wrote to memory of 2452	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	39
PID 2520 wrote to memory of 2452	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	39
PID 2520 wrote to memory of 2452	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	39
PID 2520 wrote to memory of 2452	2520	22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe	39
PID 548 wrote to memory of 3000	548	baminxhu.exe	42
PID 548 wrote to memory of 3000	548	baminxhu.exe	42
PID 548 wrote to memory of 3000	548	baminxhu.exe	42
PID 548 wrote to memory of 3000	548	baminxhu.exe	42
PID 548 wrote to memory of 3000	548	baminxhu.exe	42
PID 548 wrote to memory of 3000	548	baminxhu.exe	42

C:\Users\Admin\AppData\Local\Temp\22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe
"C:\Users\Admin\AppData\Local\Temp\22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rulydzri\
  2⤵
  PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\baminxhu.exe" C:\Windows\SysWOW64\rulydzri\
  2⤵
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rulydzri binPath= "C:\Windows\SysWOW64\rulydzri\baminxhu.exe /d\"C:\Users\Admin\AppData\Local\Temp\22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rulydzri "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rulydzri
  2⤵
  - Launches sc.exe
  PID:2348
- 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:2452

C:\Windows\SysWOW64\rulydzri\baminxhu.exe
C:\Windows\SysWOW64\rulydzri\baminxhu.exe /d"C:\Users\Admin\AppData\Local\Temp\22e95da4d685cf7a8ca80be82b1a587da1094047cb200da81a61b44d515b6a16.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  PID:3000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
10.2MB

MD5
b65667e9f4400a98147c7d519e957cdb

SHA1
47949e4fc943e2853aac3f82efd3435a110dfa0d

SHA256
bb249da708c735bd0c8a3b945e1d5fa68b49df7c273533e3b7bf8367053c10fe

SHA512
1472e3d8a246f0c515ba886d358c8a3a4942bfdba6efd454c300752356e7348a16719c20f65265d658e09627a9377c8d66f1cfa7e19cd03d001af22d2ef32478

Download Submit
C:\Windows\SysWOW64\rulydzri\baminxhu.exe

Filesize
10.2MB

MD5
b65667e9f4400a98147c7d519e957cdb

SHA1
47949e4fc943e2853aac3f82efd3435a110dfa0d

SHA256
bb249da708c735bd0c8a3b945e1d5fa68b49df7c273533e3b7bf8367053c10fe

SHA512
1472e3d8a246f0c515ba886d358c8a3a4942bfdba6efd454c300752356e7348a16719c20f65265d658e09627a9377c8d66f1cfa7e19cd03d001af22d2ef32478

Download Submit
memory/548-12-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/548-18-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2520-3-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2520-6-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2520-8-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2520-9-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2520-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2520-2-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3000-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3000-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-13-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-22-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3000-23-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads