ytstealer | 8fad375a8a496ce65f85dfd94ef6410123c9fa22a3c0b35d9395b8bd79c29033

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
12-08-2022 07:07

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General

Target

8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe
Size

4.0MB
MD5

6fe551628b87a45b85dd17d99078b0f2
SHA1

4b4deab383667dabfd2238ca0e7ceacfec7c881f
SHA256

8fad375a8a496ce65f85dfd94ef6410123c9fa22a3c0b35d9395b8bd79c29033
SHA512

d8f13d1f9f93f10b9709c33e50e997c908b9c007c9e6b91c5d26dd22717321f3f17683f80407a1512ab91f4ac186fb27ded635c284226b038c50a06d551c9aeb

Score

10^/10

ytstealer spyware stealer upx

Malware Config

Signatures

YTStealer
YTStealer is a malware designed to steal YouTube authentication cookies.
stealer ytstealer

YTStealer payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1680-54-0x0000000000090000-0x0000000000E59000-memory.dmp	family_ytstealer
behavioral1/memory/1680-57-0x0000000000090000-0x0000000000E59000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1680-54-0x0000000000090000-0x0000000000E59000-memory.dmp	upx
behavioral1/memory/1680-57-0x0000000000090000-0x0000000000E59000-memory.dmp	upx

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe

pid	process
1680	8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe
1680	8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.execmd.exe

description	pid	process	target process
PID 1680 wrote to memory of 696	1680	8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe	cmd.exe
PID 1680 wrote to memory of 696	1680	8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe	cmd.exe
PID 1680 wrote to memory of 696	1680	8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe	cmd.exe
PID 696 wrote to memory of 268	696	cmd.exe	choice.exe
PID 696 wrote to memory of 268	696	cmd.exe	choice.exe
PID 696 wrote to memory of 268	696	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe
"C:\Users\Admin\AppData\Local\Temp\8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Local\Temp\8FAD375A8A496CE65F85DFD94EF6410123C9FA22A3C0B35D9395B8BD79C29033.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:696

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/268-56-0x0000000000000000-mapping.dmp

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memory/696-55-0x0000000000000000-mapping.dmp

Download
memory/1680-54-0x0000000000090000-0x0000000000E59000-memory.dmp

Filesize
13.8MB

Download
memory/1680-57-0x0000000000090000-0x0000000000E59000-memory.dmp

Filesize
13.8MB

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