ytstealer | 21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2

Analysis

max time kernel
50s
max time network
57s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
31-08-2022 10:34

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General

Target

21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
Size

4.0MB
MD5

b09ec6718a34a70a182f3412b89f6777
SHA1

e730645db18339897aeddb4f21ce662911e03444
SHA256

21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2
SHA512

5d0f9eb9fcfe8a5d6c42db552d35411116ec0b405e747537a75fd50fb6e9f1d1fc1bf95c169c5ef7c2d217b7cc5d647a6ed36f130e0382a71f919c5e09ec7881
SSDEEP

98304:GbhyCQjQZtnVQvM1ozGPpf4jhxJ6J+wVj9h6QzJwH8Kk:OkQZtVFmjFjkj9hBwH8V

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 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2128-123-0x0000000000BE0000-0x00000000019B9000-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/2128-120-0x0000000000BE0000-0x00000000019B9000-memory.dmp	upx
behavioral1/memory/2128-123-0x0000000000BE0000-0x00000000019B9000-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 4 IoCs

Processes:

21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe

pid	process
2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.execmd.exe

description	pid	process	target process
PID 2128 wrote to memory of 4448	2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe	cmd.exe
PID 2128 wrote to memory of 4448	2128	21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe	cmd.exe
PID 4448 wrote to memory of 4728	4448	cmd.exe	choice.exe
PID 4448 wrote to memory of 4728	4448	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
"C:\Users\Admin\AppData\Local\Temp\21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2128

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\21c2f78a2ba5891c4dbdc1b50283844c7720ecd3f1187fb9269015524cad2da2.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4448

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2128-120-0x0000000000BE0000-0x00000000019B9000-memory.dmp

Filesize
13.8MB

Download
memory/2128-123-0x0000000000BE0000-0x00000000019B9000-memory.dmp

Filesize
13.8MB

Download
memory/4448-121-0x0000000000000000-mapping.dmp

Download
memory/4728-122-0x0000000000000000-mapping.dmp

Download