tofsee | 24c25a017a0c219c93f2dec202507b2fe8040143c2a2ed2ed71ffbe2885d7f10

Analysis

max time kernel
148s
max time network
123s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
27/08/2023, 18:13

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General

Target

b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe
Size

14.7MB
MD5

b93e35e817a1f4280693908ff91f1f74
SHA1

23136bdf32692188464b0a9eae05c0d69028c496
SHA256

24c25a017a0c219c93f2dec202507b2fe8040143c2a2ed2ed71ffbe2885d7f10
SHA512

782720d3795a94aab59c1883501ace7499a0b64b80dc935eda1d65e561bce0dd816677ba0a4d9b5cf932b5a143bf8748560ef85382bfe4713b07a967e2b0f937
SSDEEP

12288:9Vbj7zJB99tzBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBx:9JzXd

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\afkjzgsu = "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
2968	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\afkjzgsu\ImagePath = "C:\\Windows\\SysWOW64\\afkjzgsu\\kwvjuemg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2716	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	kwvjuemg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2716	2872	kwvjuemg.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2484	sc.exe
3012	sc.exe
3004	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 2444 wrote to memory of 1160	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	28
PID 2444 wrote to memory of 1160	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	28
PID 2444 wrote to memory of 1160	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	28
PID 2444 wrote to memory of 1160	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	28
PID 2444 wrote to memory of 3020	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	30
PID 2444 wrote to memory of 3020	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	30
PID 2444 wrote to memory of 3020	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	30
PID 2444 wrote to memory of 3020	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	30
PID 2444 wrote to memory of 2484	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	32
PID 2444 wrote to memory of 2484	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	32
PID 2444 wrote to memory of 2484	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	32
PID 2444 wrote to memory of 2484	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	32
PID 2444 wrote to memory of 3012	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	34
PID 2444 wrote to memory of 3012	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	34
PID 2444 wrote to memory of 3012	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	34
PID 2444 wrote to memory of 3012	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	34
PID 2444 wrote to memory of 3004	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	36
PID 2444 wrote to memory of 3004	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	36
PID 2444 wrote to memory of 3004	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	36
PID 2444 wrote to memory of 3004	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	36
PID 2444 wrote to memory of 2968	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	38
PID 2444 wrote to memory of 2968	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	38
PID 2444 wrote to memory of 2968	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	38
PID 2444 wrote to memory of 2968	2444	b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe	38
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41
PID 2872 wrote to memory of 2716	2872	kwvjuemg.exe	41

C:\Users\Admin\AppData\Local\Temp\b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\afkjzgsu\
  2⤵
  PID:1160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwvjuemg.exe" C:\Windows\SysWOW64\afkjzgsu\
  2⤵
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create afkjzgsu binPath= "C:\Windows\SysWOW64\afkjzgsu\kwvjuemg.exe /d\"C:\Users\Admin\AppData\Local\Temp\b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description afkjzgsu "wifi internet conection"
  2⤵
  - Launches sc.exe
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start afkjzgsu
  2⤵
  - Launches sc.exe
  PID:3004
- 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:2968

C:\Windows\SysWOW64\afkjzgsu\kwvjuemg.exe
C:\Windows\SysWOW64\afkjzgsu\kwvjuemg.exe /d"C:\Users\Admin\AppData\Local\Temp\b93e35e817a1f4280693908ff91f1f74_mafia_JC.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  PID:2716

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\kwvjuemg.exe

Filesize
14.1MB

MD5
593888436e96f1befd9e1e79ca6facf3

SHA1
4c081f6e2961bd402afaecc02d2cab9b070caeac

SHA256
988f1e663c06802fb8a94654dfb5b7395d453c1cace0f389dfc508862b0a423e

SHA512
33b9d61de55dc6cb5edc5aca01ea1c4815afd0ee365e7625e5cbf368a414f8340957a5b0476f2a455c040aaeafddec8332e501c8bee4b3d765ec8c1c55a69555

Download Submit
C:\Windows\SysWOW64\afkjzgsu\kwvjuemg.exe

Filesize
14.1MB

MD5
593888436e96f1befd9e1e79ca6facf3

SHA1
4c081f6e2961bd402afaecc02d2cab9b070caeac

SHA256
988f1e663c06802fb8a94654dfb5b7395d453c1cace0f389dfc508862b0a423e

SHA512
33b9d61de55dc6cb5edc5aca01ea1c4815afd0ee365e7625e5cbf368a414f8340957a5b0476f2a455c040aaeafddec8332e501c8bee4b3d765ec8c1c55a69555

Download Submit
memory/2444-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2444-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2444-6-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2444-7-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2444-1-0x0000000000590000-0x0000000000690000-memory.dmp

Filesize
1024KB

Download
memory/2716-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-21-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2716-20-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2872-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2872-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2872-10-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads