tofsee | 1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a

Analysis

max time kernel
147s
max time network
124s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
14/11/2023, 19:21

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General

Target

1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe
Size

10.9MB
MD5

3b4ec4dce6bbf75afbcae31112bc54a1
SHA1

084e1cdc66b1eed1a8dd37391ff4c5a6239e5267
SHA256

1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a
SHA512

566d098f0bbad9eea09a06e89d97de6a0e46f101d06ddf3bf6ce5506d0dcbd1388a4e7c3ca6ca54045b83cb1a1c961a58206c2bee68d1ada9c3b71146d1f2452
SSDEEP

3072:9AS2oAKtZZy2m4zRwhIuGi9Pf2AG/7999999999999999999999999999999999T:9A7KtDyv4lwh7S

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

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\wzjfllwu = "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
2500	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\wzjfllwu\ImagePath = "C:\\Windows\\SysWOW64\\wzjfllwu\\fiqqomqz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2660	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	fiqqomqz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 2660	2520	fiqqomqz.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1176	sc.exe
2704	sc.exe
2920	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 2164 wrote to memory of 2892	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	28
PID 2164 wrote to memory of 2892	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	28
PID 2164 wrote to memory of 2892	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	28
PID 2164 wrote to memory of 2892	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	28
PID 2164 wrote to memory of 2308	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	30
PID 2164 wrote to memory of 2308	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	30
PID 2164 wrote to memory of 2308	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	30
PID 2164 wrote to memory of 2308	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	30
PID 2164 wrote to memory of 2704	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	32
PID 2164 wrote to memory of 2704	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	32
PID 2164 wrote to memory of 2704	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	32
PID 2164 wrote to memory of 2704	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	32
PID 2164 wrote to memory of 2920	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	34
PID 2164 wrote to memory of 2920	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	34
PID 2164 wrote to memory of 2920	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	34
PID 2164 wrote to memory of 2920	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	34
PID 2164 wrote to memory of 1176	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	36
PID 2164 wrote to memory of 1176	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	36
PID 2164 wrote to memory of 1176	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	36
PID 2164 wrote to memory of 1176	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	36
PID 2164 wrote to memory of 2500	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	38
PID 2164 wrote to memory of 2500	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	38
PID 2164 wrote to memory of 2500	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	38
PID 2164 wrote to memory of 2500	2164	1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe	38
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41
PID 2520 wrote to memory of 2660	2520	fiqqomqz.exe	41

C:\Users\Admin\AppData\Local\Temp\1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe
"C:\Users\Admin\AppData\Local\Temp\1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wzjfllwu\
  2⤵
  PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fiqqomqz.exe" C:\Windows\SysWOW64\wzjfllwu\
  2⤵
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create wzjfllwu binPath= "C:\Windows\SysWOW64\wzjfllwu\fiqqomqz.exe /d\"C:\Users\Admin\AppData\Local\Temp\1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description wzjfllwu "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:2920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start wzjfllwu
  2⤵
  - Launches sc.exe
  PID:1176
- 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:2500

C:\Windows\SysWOW64\wzjfllwu\fiqqomqz.exe
C:\Windows\SysWOW64\wzjfllwu\fiqqomqz.exe /d"C:\Users\Admin\AppData\Local\Temp\1971f29dbe7038f50552cff2c3a56ab15f941bcd90bea3404961f109eb77360a.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2660

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\fiqqomqz.exe

Filesize
10.3MB

MD5
646d65e502c609cc73c98c21371c79e1

SHA1
ea8137ded6cf91b395dd3eb592de37d190352396

SHA256
bb5b0387a4d615970e57f7aaa38b501a975872bb54f1306d1917b772cb6759c2

SHA512
163670ee363208e4eba820871cfc82c8448d1b4bd61bcf705512659c1a703abe8ef8f89e333a16487a7c4406fc56b6f7326f69b9144e33dc1843a73aae33bd55

Download Submit
C:\Windows\SysWOW64\wzjfllwu\fiqqomqz.exe

Filesize
10.3MB

MD5
646d65e502c609cc73c98c21371c79e1

SHA1
ea8137ded6cf91b395dd3eb592de37d190352396

SHA256
bb5b0387a4d615970e57f7aaa38b501a975872bb54f1306d1917b772cb6759c2

SHA512
163670ee363208e4eba820871cfc82c8448d1b4bd61bcf705512659c1a703abe8ef8f89e333a16487a7c4406fc56b6f7326f69b9144e33dc1843a73aae33bd55

Download Submit
memory/2164-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2164-2-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2164-5-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2520-8-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2520-7-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2520-13-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/2660-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-9-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2660-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads