ytstealer | 385ef22e6376a88bc56460a1ce505391f2d8503b971675e34f4cbbc0ffc6bd36

Analysis

max time kernel
38s
max time network
41s
platform
windows7_x64
resource
win7-20220414-en
submitted
01-07-2022 18:02

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General

Target

7b753733b2b3b38a6e09c7048a6c74ed.exe
Size

4.0MB
MD5

7b753733b2b3b38a6e09c7048a6c74ed
SHA1

25502ec0b81ffc3c604f6ecb64db8e5c5935c3b0
SHA256

385ef22e6376a88bc56460a1ce505391f2d8503b971675e34f4cbbc0ffc6bd36
SHA512

a79f85c5c20f1c9813100d2983a314cc7396f83900c3a12554e9fb867cd2fcb52b0d16707d60e62724fc71f278f4b1e451c601e225f4337d89cff2e857e5c2b3

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/1860-54-0x00000000003F0000-0x00000000011B9000-memory.dmp	family_ytstealer
behavioral1/memory/1860-57-0x00000000003F0000-0x00000000011B9000-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/1860-54-0x00000000003F0000-0x00000000011B9000-memory.dmp	upx
behavioral1/memory/1860-57-0x00000000003F0000-0x00000000011B9000-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:

7b753733b2b3b38a6e09c7048a6c74ed.exe

pid process

1860 7b753733b2b3b38a6e09c7048a6c74ed.exe
1860 7b753733b2b3b38a6e09c7048a6c74ed.exe

pid	process
1860	7b753733b2b3b38a6e09c7048a6c74ed.exe
1860	7b753733b2b3b38a6e09c7048a6c74ed.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7b753733b2b3b38a6e09c7048a6c74ed.execmd.exe

description	pid	process	target process
PID 1860 wrote to memory of 988	1860	7b753733b2b3b38a6e09c7048a6c74ed.exe	cmd.exe
PID 1860 wrote to memory of 988	1860	7b753733b2b3b38a6e09c7048a6c74ed.exe	cmd.exe
PID 1860 wrote to memory of 988	1860	7b753733b2b3b38a6e09c7048a6c74ed.exe	cmd.exe
PID 988 wrote to memory of 1696	988	cmd.exe	choice.exe
PID 988 wrote to memory of 1696	988	cmd.exe	choice.exe
PID 988 wrote to memory of 1696	988	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\7b753733b2b3b38a6e09c7048a6c74ed.exe
"C:\Users\Admin\AppData\Local\Temp\7b753733b2b3b38a6e09c7048a6c74ed.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1860
- 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\7b753733b2b3b38a6e09c7048a6c74ed.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:1696

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/988-55-0x0000000000000000-mapping.dmp

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memory/1696-56-0x0000000000000000-mapping.dmp

Download
memory/1860-54-0x00000000003F0000-0x00000000011B9000-memory.dmp

Filesize
13.8MB

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memory/1860-57-0x00000000003F0000-0x00000000011B9000-memory.dmp

Filesize
13.8MB

Download