tofsee | 22271e2c71304fbe07ac384b7900a449ac4e16252e63d916096399ba972ed16a

Analysis

max time kernel
141s
max time network
138s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-01-2024 16:13

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General

Target

7e434a6cbcc3d938039a2db91259dfcb.exe
Size

11.9MB
MD5

7e434a6cbcc3d938039a2db91259dfcb
SHA1

c7654ecaa2e52a2fec9083b62d4871ba58c67929
SHA256

22271e2c71304fbe07ac384b7900a449ac4e16252e63d916096399ba972ed16a
SHA512

d7bb6e2180e73ba01928dd6c087e0ab8cf64a5225f53a948521b64b205c57c00a3219a6b8ee321ac7a55bf83dafa19af22da04260025d51b9376da7f616c14a2
SSDEEP

49152:cBpQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ3:

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Extracted

Family

tofsee

43.231.4.6

lazystax.ru

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\xheugtrn = "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
2756	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\xheugtrn\ImagePath = "C:\\Windows\\SysWOW64\\xheugtrn\\qkmpihh.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	qkmpihh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 2648	2620	qkmpihh.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2860	sc.exe
2920	sc.exe
2724	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 2960 wrote to memory of 2180	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	28
PID 2960 wrote to memory of 2180	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	28
PID 2960 wrote to memory of 2180	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	28
PID 2960 wrote to memory of 2180	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	28
PID 2960 wrote to memory of 2908	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	30
PID 2960 wrote to memory of 2908	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	30
PID 2960 wrote to memory of 2908	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	30
PID 2960 wrote to memory of 2908	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	30
PID 2960 wrote to memory of 2724	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	32
PID 2960 wrote to memory of 2724	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	32
PID 2960 wrote to memory of 2724	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	32
PID 2960 wrote to memory of 2724	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	32
PID 2960 wrote to memory of 2860	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	35
PID 2960 wrote to memory of 2860	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	35
PID 2960 wrote to memory of 2860	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	35
PID 2960 wrote to memory of 2860	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	35
PID 2960 wrote to memory of 2920	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	36
PID 2960 wrote to memory of 2920	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	36
PID 2960 wrote to memory of 2920	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	36
PID 2960 wrote to memory of 2920	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	36
PID 2960 wrote to memory of 2756	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	38
PID 2960 wrote to memory of 2756	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	38
PID 2960 wrote to memory of 2756	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	38
PID 2960 wrote to memory of 2756	2960	7e434a6cbcc3d938039a2db91259dfcb.exe	38
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41
PID 2620 wrote to memory of 2648	2620	qkmpihh.exe	41

C:\Users\Admin\AppData\Local\Temp\7e434a6cbcc3d938039a2db91259dfcb.exe
"C:\Users\Admin\AppData\Local\Temp\7e434a6cbcc3d938039a2db91259dfcb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xheugtrn\
  2⤵
  PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qkmpihh.exe" C:\Windows\SysWOW64\xheugtrn\
  2⤵
  PID:2908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xheugtrn binPath= "C:\Windows\SysWOW64\xheugtrn\qkmpihh.exe /d\"C:\Users\Admin\AppData\Local\Temp\7e434a6cbcc3d938039a2db91259dfcb.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xheugtrn "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2860
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xheugtrn
  2⤵
  - Launches sc.exe
  PID:2920
- 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:2756

C:\Windows\SysWOW64\xheugtrn\qkmpihh.exe
C:\Windows\SysWOW64\xheugtrn\qkmpihh.exe /d"C:\Users\Admin\AppData\Local\Temp\7e434a6cbcc3d938039a2db91259dfcb.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2648

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\qkmpihh.exe

Filesize
13.6MB

MD5
b62c8e76bfd12aa5172a2d81dc33b545

SHA1
bf21176eae9c3eb3ca1d83009a7569c0834719bc

SHA256
69dd340b84e084c913eb44994a981395d653aefb420885ec676f70e2648f9556

SHA512
4641afbe9cb5a367190518a324bca67188ac518c0b5f72b343befac74badace52da418354244516f1f0289f572d036db75927be182e1e9a11615d35929174c39

Download Submit
memory/2620-9-0x00000000032F0000-0x00000000033F0000-memory.dmp

Filesize
1024KB

Download
memory/2620-17-0x0000000000400000-0x000000000323B000-memory.dmp

Filesize
46.2MB

Download
memory/2620-18-0x0000000000400000-0x000000000323B000-memory.dmp

Filesize
46.2MB

Download
memory/2648-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2648-10-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2648-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-13-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2648-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2648-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2648-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2960-6-0x0000000000400000-0x000000000323B000-memory.dmp

Filesize
46.2MB

Download
memory/2960-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/2960-5-0x0000000000400000-0x000000000323B000-memory.dmp

Filesize
46.2MB

Download
memory/2960-3-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads