tofsee | 191eb74169c214f047b6b9efb8c28e18e1af40b91ac91ab5f6071c4735505e43

General

Target

2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe
Size

11.3MB
MD5

dea97f9022f1e5e44f150eea8375c8a9
SHA1

bd4e36d5791b595d381bc2d2a4816710a54aad39
SHA256

191eb74169c214f047b6b9efb8c28e18e1af40b91ac91ab5f6071c4735505e43
SHA512

d5f0166d3dc07c458ff5b1f73e2d510908fb6a001e090b6153cac7290e1a2b6fff628d9ee290f0bb77608b047bfce200647e07b0f5534049b4d8da1e97a4d831
SSDEEP

6144:4+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:4+r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

4484 netsh.exe

pid	process
4484	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\ijzqsdfy\ImagePath = "C:\\Windows\\SysWOW64\\ijzqsdfy\\tannqbto.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1168 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tannqbto.exe

pid process

740 tannqbto.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tannqbto.exe

description pid process target process

PID 740 set thread context of 1168 740 tannqbto.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

3560 sc.exe
3040 sc.exe
220 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1168	svchost.exe

pid	process
740	tannqbto.exe

description	pid	process	target process
PID 740 set thread context of 1168	740	tannqbto.exe	svchost.exe

pid	process
3560	sc.exe
3040	sc.exe
220	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exetannqbto.exe

description	pid	process	target process
PID 440 wrote to memory of 540	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 540	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 540	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 4332	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 4332	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 4332	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	cmd.exe
PID 440 wrote to memory of 3040	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 3040	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 3040	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 220	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 220	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 220	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 3560	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 3560	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 3560	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	sc.exe
PID 440 wrote to memory of 4484	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 440 wrote to memory of 4484	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 440 wrote to memory of 4484	440	2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe	netsh.exe
PID 740 wrote to memory of 1168	740	tannqbto.exe	svchost.exe
PID 740 wrote to memory of 1168	740	tannqbto.exe	svchost.exe
PID 740 wrote to memory of 1168	740	tannqbto.exe	svchost.exe
PID 740 wrote to memory of 1168	740	tannqbto.exe	svchost.exe
PID 740 wrote to memory of 1168	740	tannqbto.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:440

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ijzqsdfy\
2⤵
PID:540

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tannqbto.exe" C:\Windows\SysWOW64\ijzqsdfy\
2⤵
PID:4332

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ijzqsdfy binPath= "C:\Windows\SysWOW64\ijzqsdfy\tannqbto.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3040

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ijzqsdfy "wifi internet conection"
2⤵
- Launches sc.exe
PID:220

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ijzqsdfy
2⤵
- Launches sc.exe
PID:3560

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
- Event Triggered Execution: Netsh Helper DLL
PID:4484

C:\Windows\SysWOW64\ijzqsdfy\tannqbto.exe
C:\Windows\SysWOW64\ijzqsdfy\tannqbto.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-27_dea97f9022f1e5e44f150eea8375c8a9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:1168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tannqbto.exe
Filesize
12.3MB

MD5
ee64939627d553fe824c36c173282baf

SHA1
aa52d0075d52ed759a0732de76f9116c72d618b5

SHA256
97b150d3c7d68e35a8601d95ba0f43ac9b83b61179a3260a29347ba880993ced

SHA512
dd50fe0c89f36e8d3c4fa98bbecb0014087da7974c820584f133015a476c00cdd1a31acd75867b7fae77159f5139564c3d3dda00befcecfb5a5c3c7b470cbc3b

Download Submit
memory/440-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/440-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/440-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/440-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/740-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/740-12-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/740-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1168-10-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/1168-13-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download
memory/1168-16-0x0000000000170000-0x0000000000185000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads