tofsee | e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b

Analysis

max time kernel
291s
max time network
355s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
01-12-2022 10:17

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General

Target

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
Size

116KB
MD5

4c79627d173e65b9f8a540862cec94b6
SHA1

e8ccc199f9c837f87abac347f7c7e148852ee8ea
SHA256

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b
SHA512

bb3df0154d928e331f449bbdc2c85e82e9633db7408904039ffdb82ff55e16100eea48ed184b3aa70e38fb646d7b2c7c768cdee98bc1b8b342ceedd663de894e
SSDEEP

1536:LazW9cONBCMUUHTYT2n3oJJpG7V8JtYNvZL3HHjLvlz:+zW9cnMUyTYzG7V87YNvZTHH3vlz

Score

10^/10

tofsee persistence trojan

Malware Config

Extracted

Family

tofsee

103.9.150.244

188.190.120.102

121.127.250.203

188.165.132.183

rgtryhbgddtyh.biz

wertdghbyrukl.ch

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSConfig = "\"C:\\Users\\Admin\\mzerwjck.exe\""	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

description	pid	process	target process
PID 4272 set thread context of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

pid process

4272 e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

pid	process
4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

description	pid	process	target process
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
PID 4272 wrote to memory of 3820	4272	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe	e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe

C:\Users\Admin\AppData\Local\Temp\e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
"C:\Users\Admin\AppData\Local\Temp\e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4272

C:\Users\Admin\AppData\Local\Temp\e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe
"C:\Users\Admin\AppData\Local\Temp\e454df81b23d84eca8cfbca9661e8e1714ae04c3c5d236d603f9f40b0c93533b.exe"
2⤵
- Adds Run key to start application
PID:3820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3820-134-0x0000000000000000-mapping.dmp

Download
memory/3820-135-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3820-137-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3820-138-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download