tofsee | acd329362b311a912e88b825259f552d41d15ec07a7c640fb14f3327a514b323

General

Target

8129457fa7210937a1467a21f241b201.exe
Size

14.3MB
MD5

8129457fa7210937a1467a21f241b201
SHA1

f5013dad172969224076ca791692ac60d2f5f027
SHA256

acd329362b311a912e88b825259f552d41d15ec07a7c640fb14f3327a514b323
SHA512

9ae2f59095e0afe5839d8356461cb4d385edfc02161b54c4cb39f2649afb24924265bd4a43c853f062243a9fe55e5b2947cb8b78bf7ca26321c91205fd35b86e

Score

10^/10

tofsee evasion persistence trojan

Malware Config

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Creates new service(s) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

cpdgiigt.exe

pid process

2648 cpdgiigt.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1300 svchost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

cpdgiigt.exe

description pid process target process

PID 2648 set thread context of 1300 2648 cpdgiigt.exe svchost.exe
Launches sc.exe
Sc.exe is a Windows utlilty to control services on the system.

pid	process
2648	cpdgiigt.exe

pid	process
1300	svchost.exe

description	pid	process	target process
PID 2648 set thread context of 1300	2648	cpdgiigt.exe	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

8129457fa7210937a1467a21f241b201.execpdgiigt.exe

description	pid	process	target process
PID 3300 wrote to memory of 3420	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 3420	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 3420	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 712	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 712	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 712	3300	8129457fa7210937a1467a21f241b201.exe	cmd.exe
PID 3300 wrote to memory of 2344	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 2344	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 2344	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 3944	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 3944	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 3944	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 2704	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 2704	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 2704	3300	8129457fa7210937a1467a21f241b201.exe	sc.exe
PID 3300 wrote to memory of 964	3300	8129457fa7210937a1467a21f241b201.exe	netsh.exe
PID 3300 wrote to memory of 964	3300	8129457fa7210937a1467a21f241b201.exe	netsh.exe
PID 3300 wrote to memory of 964	3300	8129457fa7210937a1467a21f241b201.exe	netsh.exe
PID 2648 wrote to memory of 1300	2648	cpdgiigt.exe	svchost.exe
PID 2648 wrote to memory of 1300	2648	cpdgiigt.exe	svchost.exe
PID 2648 wrote to memory of 1300	2648	cpdgiigt.exe	svchost.exe
PID 2648 wrote to memory of 1300	2648	cpdgiigt.exe	svchost.exe
PID 2648 wrote to memory of 1300	2648	cpdgiigt.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\8129457fa7210937a1467a21f241b201.exe
"C:\Users\Admin\AppData\Local\Temp\8129457fa7210937a1467a21f241b201.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3300

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pqqwkozi\
2⤵
PID:3420

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cpdgiigt.exe" C:\Windows\SysWOW64\pqqwkozi\
2⤵
PID:712

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pqqwkozi binPath= "C:\Windows\SysWOW64\pqqwkozi\cpdgiigt.exe /d\"C:\Users\Admin\AppData\Local\Temp\8129457fa7210937a1467a21f241b201.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
PID:2344

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pqqwkozi "wifi internet conection"
2⤵
PID:3944

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pqqwkozi
2⤵
PID:2704

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⤵
PID:964

C:\Windows\SysWOW64\pqqwkozi\cpdgiigt.exe
C:\Windows\SysWOW64\pqqwkozi\cpdgiigt.exe /d"C:\Users\Admin\AppData\Local\Temp\8129457fa7210937a1467a21f241b201.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2648

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Deletes itself
PID:1300

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

New Service

1

T1050

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cpdgiigt.exe
MD5
af2b71476e0520ce97dd8a3ee43ee6a4

SHA1
e0a2e7b695b5c2b2303811c101c5ae46409c3705

SHA256
2b43968658e0c6626e0920d64ac4ed92869f08f9d6fdc87816ed7f4e5da54c8f

SHA512
e2dd000b162fb06db3c2a13158eb40048dc7aa22cf132a6076573ff048ab344459f4d149abd3feced8dd3a8950ed77d7599c53e262c4bfec0182fc7cca46f278

Download Submit
C:\Windows\SysWOW64\pqqwkozi\cpdgiigt.exe
MD5
af2b71476e0520ce97dd8a3ee43ee6a4

SHA1
e0a2e7b695b5c2b2303811c101c5ae46409c3705

SHA256
2b43968658e0c6626e0920d64ac4ed92869f08f9d6fdc87816ed7f4e5da54c8f

SHA512
e2dd000b162fb06db3c2a13158eb40048dc7aa22cf132a6076573ff048ab344459f4d149abd3feced8dd3a8950ed77d7599c53e262c4bfec0182fc7cca46f278

Download Submit
memory/712-3-0x0000000000000000-mapping.dmp

Download
memory/964-8-0x0000000000000000-mapping.dmp

Download
memory/1300-10-0x0000000002F70000-0x0000000002F85000-memory.dmp

Filesize
84KB

Download
memory/1300-11-0x0000000002F79A6B-mapping.dmp

Download
memory/2344-5-0x0000000000000000-mapping.dmp

Download
memory/2704-7-0x0000000000000000-mapping.dmp

Download
memory/3420-2-0x0000000000000000-mapping.dmp

Download
memory/3944-6-0x0000000000000000-mapping.dmp

Download

Analysis

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