tofsee | 0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8

General

Target

0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe
Size

98KB
MD5

b34b1258a1e5b89d9fbdd9aac4c47bec
SHA1

8f1550ed6e666752230cf637c71743512a6dda45
SHA256

0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8
SHA512

1bb74f49b3e37f60afc80c607460e451e143856a0a7212ef3136dc34ecb3969e27370b7fc5266ff73fd8eab62b5155d96a8288fb247f6104a1a911130dc306d5

Score

10^/10

tofsee evasion persistence 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) 1 TTPs
persistence

New Service
T1050
Executes dropped EXE 1 IoCs

Processes:

feqmrbly.exe

pid process

1404 feqmrbly.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1856 netsh.exe

pid	process
1404	feqmrbly.exe

pid	process
1856	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\quyzlhrl\ImagePath = "C:\\Windows\\SysWOW64\\quyzlhrl\\feqmrbly.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:

0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

feqmrbly.exe

description pid process target process

PID 1404 set thread context of 556 1404 feqmrbly.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

2864 sc.exe
700 sc.exe
456 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1404 set thread context of 556	1404	feqmrbly.exe	svchost.exe

pid	process
2864	sc.exe
700	sc.exe
456	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exefeqmrbly.exe

description	pid	process	target process
PID 548 wrote to memory of 2480	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 2480	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 2480	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 4452	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 4452	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 4452	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	cmd.exe
PID 548 wrote to memory of 456	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 456	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 456	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 2864	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 2864	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 2864	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 700	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 700	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 700	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	sc.exe
PID 548 wrote to memory of 1856	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	netsh.exe
PID 548 wrote to memory of 1856	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	netsh.exe
PID 548 wrote to memory of 1856	548	0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe	netsh.exe
PID 1404 wrote to memory of 556	1404	feqmrbly.exe	svchost.exe
PID 1404 wrote to memory of 556	1404	feqmrbly.exe	svchost.exe
PID 1404 wrote to memory of 556	1404	feqmrbly.exe	svchost.exe
PID 1404 wrote to memory of 556	1404	feqmrbly.exe	svchost.exe
PID 1404 wrote to memory of 556	1404	feqmrbly.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe
"C:\Users\Admin\AppData\Local\Temp\0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:548

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\quyzlhrl\
2⤵
PID:2480

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\feqmrbly.exe" C:\Windows\SysWOW64\quyzlhrl\
2⤵
PID:4452

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create quyzlhrl binPath= "C:\Windows\SysWOW64\quyzlhrl\feqmrbly.exe /d\"C:\Users\Admin\AppData\Local\Temp\0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:456

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description quyzlhrl "wifi internet conection"
2⤵
- Launches sc.exe
PID:2864

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start quyzlhrl
2⤵
- Launches sc.exe
PID:700

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:1856

C:\Windows\SysWOW64\quyzlhrl\feqmrbly.exe
C:\Windows\SysWOW64\quyzlhrl\feqmrbly.exe /d"C:\Users\Admin\AppData\Local\Temp\0f46fce8d6203de3ea82a70f7abddfbf95850f7b1356ac967e05d955aa1566d8.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
PID:556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

New Service

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

New Service

1

T1050

Defense Evasion

Modify Registry

1

T1112

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\feqmrbly.exe
Filesize
10.6MB

MD5
17c05f115b2269c0eb00dd507918db41

SHA1
5f3832bdad40ad1d122f4fa31d881d9b92b9dca1

SHA256
b14bbb07fa730e39b4722ddf1d56bc89a970f5369d21895cee11f82e55203c25

SHA512
fd1e6c1f79d8a079a3d4f9ec140d68cc4e6961e626ff098a8cdd0aaf09f0b0564180bdc03c7d4df90866a5eb0c86d0729aa0819539d38614cea84f8677f0cae9

Download Submit
C:\Windows\SysWOW64\quyzlhrl\feqmrbly.exe
Filesize
10.6MB

MD5
17c05f115b2269c0eb00dd507918db41

SHA1
5f3832bdad40ad1d122f4fa31d881d9b92b9dca1

SHA256
b14bbb07fa730e39b4722ddf1d56bc89a970f5369d21895cee11f82e55203c25

SHA512
fd1e6c1f79d8a079a3d4f9ec140d68cc4e6961e626ff098a8cdd0aaf09f0b0564180bdc03c7d4df90866a5eb0c86d0729aa0819539d38614cea84f8677f0cae9

Download Submit
memory/456-134-0x0000000000000000-mapping.dmp

Download
memory/548-130-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/556-140-0x0000000000000000-mapping.dmp

Download
memory/556-145-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/556-144-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/556-143-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/556-141-0x00000000003D0000-0x00000000003E5000-memory.dmp

Filesize
84KB

Download
memory/700-136-0x0000000000000000-mapping.dmp

Download
memory/1404-139-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/1856-137-0x0000000000000000-mapping.dmp

Download
memory/2480-131-0x0000000000000000-mapping.dmp

Download
memory/2864-135-0x0000000000000000-mapping.dmp

Download
memory/4452-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads