tofsee | 899aa9dd6997669142d99322dc8151ca0bad52758a3a6680affd28447e3ca2e9

General

Target

2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe
Size

14.8MB
MD5

82c2359d34d3963f1254fe66fd531487
SHA1

9881acf4de4b213f1500bc6627858257e4bbd190
SHA256

899aa9dd6997669142d99322dc8151ca0bad52758a3a6680affd28447e3ca2e9
SHA512

f98500b7f3de7e2577454c23e14eff00feb0c434ac1bc544da6e2d67d5d4ffd53d6e0d180685358ecd187ae1a1b7c5e04dedac90f844607fca0314edfc122a26
SSDEEP

6144:v+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:v+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

3256 netsh.exe

pid	process
3256	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\cjifzdqw\ImagePath = "C:\\Windows\\SysWOW64\\cjifzdqw\\xntmnvlu.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:

2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2140 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xntmnvlu.exe

pid process

1336 xntmnvlu.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xntmnvlu.exe

description pid process target process

PID 1336 set thread context of 2140 1336 xntmnvlu.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

4176 sc.exe
3280 sc.exe
3160 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2140	svchost.exe

pid	process
1336	xntmnvlu.exe

description	pid	process	target process
PID 1336 set thread context of 2140	1336	xntmnvlu.exe	svchost.exe

pid	process
4176	sc.exe
3280	sc.exe
3160	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 opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exexntmnvlu.exe

description	pid	process	target process
PID 1600 wrote to memory of 684	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 684	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 684	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 2432	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 2432	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 2432	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	cmd.exe
PID 1600 wrote to memory of 4176	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 4176	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 4176	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3280	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3280	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3280	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3160	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3160	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3160	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	sc.exe
PID 1600 wrote to memory of 3256	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 1600 wrote to memory of 3256	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 1600 wrote to memory of 3256	1600	2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe	netsh.exe
PID 1336 wrote to memory of 2140	1336	xntmnvlu.exe	svchost.exe
PID 1336 wrote to memory of 2140	1336	xntmnvlu.exe	svchost.exe
PID 1336 wrote to memory of 2140	1336	xntmnvlu.exe	svchost.exe
PID 1336 wrote to memory of 2140	1336	xntmnvlu.exe	svchost.exe
PID 1336 wrote to memory of 2140	1336	xntmnvlu.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cjifzdqw\
2⤵
PID:684

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xntmnvlu.exe" C:\Windows\SysWOW64\cjifzdqw\
2⤵
PID:2432

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cjifzdqw binPath= "C:\Windows\SysWOW64\cjifzdqw\xntmnvlu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:4176

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cjifzdqw "wifi internet conection"
2⤵
- Launches sc.exe
PID:3280

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cjifzdqw
2⤵
- Launches sc.exe
PID:3160

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:3256

C:\Windows\SysWOW64\cjifzdqw\xntmnvlu.exe
C:\Windows\SysWOW64\cjifzdqw\xntmnvlu.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-21_82c2359d34d3963f1254fe66fd531487_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2140

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1348 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:1424

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\xntmnvlu.exe
Filesize
10.6MB

MD5
7cbfddc17ea9420d76641cc0f2ba3bd1

SHA1
80db676e4c61d9224b2b64ec643af3fbfc81dfed

SHA256
3b62820269f42c3c99aec793ea9b80f13b91056f99e7b665958722b6abf993c8

SHA512
83ee85828e900c7749be63c341d7bf3f045eb992b3b4625a1f7d56e778dafd22ba354658aeaaea7455619ebd848b4bfcd217a0a36ee6ec4dee258e8ab925eb37

Download Submit
memory/1336-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1336-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1336-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1600-1-0x0000000000760000-0x0000000000860000-memory.dmp

Filesize
1024KB

Download
memory/1600-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1600-5-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1600-7-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1600-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2140-12-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2140-16-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download
memory/2140-17-0x0000000000620000-0x0000000000635000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads