tofsee | dcc331955bb4aee347e5702cd4311e66266c4bdf2d7e75eaaecec72ff45eaeb5

Analysis

max time kernel
147s
max time network
145s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 02:31

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General

Target

0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe
Size

15.0MB
MD5

0bc1320cc6400eb3d0ef6e0ffd52ad9e
SHA1

e507245cc7fae623067823c1e32c3059e68ba267
SHA256

dcc331955bb4aee347e5702cd4311e66266c4bdf2d7e75eaaecec72ff45eaeb5
SHA512

395e3938389375b5a171df71980aa5853ddd662147692a4765f24ccc1d6d9296e6f53d338ce75e045a7bf79ef6c3df8beb77fca32a3f39b141afafe889f9a68a
SSDEEP

24576:CerU5sWbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbH:CsW

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\rhwusxcg = "0"	svchost.exe

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
1860	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\rhwusxcg\ImagePath = "C:\\Windows\\SysWOW64\\rhwusxcg\\jetdinfd.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2600	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	jetdinfd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2864 set thread context of 2600	2864	jetdinfd.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1764	sc.exe
2800	sc.exe
2648	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 2296 wrote to memory of 2384	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	28
PID 2296 wrote to memory of 2384	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	28
PID 2296 wrote to memory of 2384	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	28
PID 2296 wrote to memory of 2384	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	28
PID 2296 wrote to memory of 2756	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	30
PID 2296 wrote to memory of 2756	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	30
PID 2296 wrote to memory of 2756	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	30
PID 2296 wrote to memory of 2756	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	30
PID 2296 wrote to memory of 2648	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	32
PID 2296 wrote to memory of 2648	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	32
PID 2296 wrote to memory of 2648	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	32
PID 2296 wrote to memory of 2648	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	32
PID 2296 wrote to memory of 1764	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	34
PID 2296 wrote to memory of 1764	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	34
PID 2296 wrote to memory of 1764	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	34
PID 2296 wrote to memory of 1764	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	34
PID 2296 wrote to memory of 2800	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	36
PID 2296 wrote to memory of 2800	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	36
PID 2296 wrote to memory of 2800	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	36
PID 2296 wrote to memory of 2800	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	36
PID 2296 wrote to memory of 1860	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	39
PID 2296 wrote to memory of 1860	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	39
PID 2296 wrote to memory of 1860	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	39
PID 2296 wrote to memory of 1860	2296	0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe	39
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41
PID 2864 wrote to memory of 2600	2864	jetdinfd.exe	41

C:\Users\Admin\AppData\Local\Temp\0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe
"C:\Users\Admin\AppData\Local\Temp\0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rhwusxcg\
  2⤵
  PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jetdinfd.exe" C:\Windows\SysWOW64\rhwusxcg\
  2⤵
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rhwusxcg binPath= "C:\Windows\SysWOW64\rhwusxcg\jetdinfd.exe /d\"C:\Users\Admin\AppData\Local\Temp\0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rhwusxcg "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rhwusxcg
  2⤵
  - Launches sc.exe
  PID:2800
- 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:1860

C:\Windows\SysWOW64\rhwusxcg\jetdinfd.exe
C:\Windows\SysWOW64\rhwusxcg\jetdinfd.exe /d"C:\Users\Admin\AppData\Local\Temp\0bc1320cc6400eb3d0ef6e0ffd52ad9e.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2600

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

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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\jetdinfd.exe

Filesize
1024KB

MD5
24b770031d80e5482bc2c4d6e0bb447f

SHA1
898eac7e1232ccb475b50374d0706ac036de29c1

SHA256
eee0bb26d295b60d711ddbf71332b743dc72ff1387c8d56ff712ecf13a5c161e

SHA512
bf003b54b05775723f4ec673e1d6ac3f6c15a7b863ed3b3266f4dca34794b7b38e18c4d1c8f3d9942b997cf7754072c50e2a8000bbe3361ac3ff88b129843087

Download Submit
C:\Windows\SysWOW64\rhwusxcg\jetdinfd.exe

Filesize
42KB

MD5
5d00245ecc14ba0ecce2e7eb79f5c717

SHA1
2826ca6ab308f2bbf283848f49e9257f88873521

SHA256
b57d9d6a41c329cad76a6e6b26134d80b6877025b010464b70d388791126320c

SHA512
bf68307eabc6e3ec633ba563815617419de333f5f9c25ebf22d5dbc74455bfe8e6774712bce433fa5e320ff13b539be21c9808ad9493352fba0ccbf7a9edf6e5

Download Submit
memory/2296-9-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2296-4-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2296-3-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2296-8-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2296-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2600-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-10-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-21-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-20-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2600-22-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

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

Filesize
4KB

Download
memory/2864-13-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2864-15-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2864-17-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads