ytstealer | 94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967

Analysis

max time kernel
45s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-08-2022 02:10

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General

Target

94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe
Size

4.0MB
MD5

260218734f5630ff01b971e7e608173d
SHA1

6f6de1f5eec33c1ad763df5c2d7c2470d633ac8a
SHA256

94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967
SHA512

5923cd5e79beed2bb2f7b9164db71e1e2c4ba515136f23edb8d080ad34ff16bac26467a1db3442fe603c4d128110211e37375890eb2ef298537791d5291ab947
SSDEEP

98304:w/0ayWy0zgH6bA55Nwkug2dsL6xX7YsgsN18ZhNXdvYIXjFM3:wHy0zga+xuJdi6pwsL8ZhfgIXpM3

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/1764-54-0x0000000000170000-0x0000000000F49000-memory.dmp	family_ytstealer
behavioral1/memory/1764-57-0x0000000000170000-0x0000000000F49000-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/1764-54-0x0000000000170000-0x0000000000F49000-memory.dmp	upx
behavioral1/memory/1764-57-0x0000000000170000-0x0000000000F49000-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:

94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe

pid	process
1764	94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe
1764	94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.execmd.exe

description	pid	process	target process
PID 1764 wrote to memory of 1772	1764	94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe	cmd.exe
PID 1764 wrote to memory of 1772	1764	94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe	cmd.exe
PID 1764 wrote to memory of 1772	1764	94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe	cmd.exe
PID 1772 wrote to memory of 560	1772	cmd.exe	choice.exe
PID 1772 wrote to memory of 560	1772	cmd.exe	choice.exe
PID 1772 wrote to memory of 560	1772	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe
"C:\Users\Admin\AppData\Local\Temp\94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1764

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\94c9afa6decdffd81c21cc057720fd0b9f63eb23324c28b0bfe1b79d2fbe8967.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:560

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/560-56-0x0000000000000000-mapping.dmp

Download
memory/1764-54-0x0000000000170000-0x0000000000F49000-memory.dmp

Filesize
13.8MB

Download
memory/1764-57-0x0000000000170000-0x0000000000F49000-memory.dmp

Filesize
13.8MB

Download
memory/1772-55-0x0000000000000000-mapping.dmp

Download