ytstealer | 1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df

Analysis

max time kernel
144s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
30/08/2022, 01:22

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General

Target
1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
Size 4.0MB
Sample220830-brbp4sagc3
SHA256 1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df
MD5 946ebbe1aff04d62bc636d0d42cc6fab
SHA1 0b7f86388a65860e2f43d5760f269b7ec0ae7056
SHA512 384ed88301c002abf04586899e587273115c9ea1b4b17e9c5c494cb8aa5b891f3ce1ed31fb05c22e44b2c32ca14f4f678db12525b88f286646d2ade7bc49af75
SSDEEP 98304:p1oajBvJCvID5DL2v7E2gF7Hi6iMg9ggyGX/:noajBvJCvADLW7E31oCGX
MD5 SHA1 SHA512 SSDEEP

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

resource	yara_rule
behavioral2/memory/4660-116-0x0000000000310000-0x00000000010E9000-memory.dmp	family_ytstealer
behavioral2/memory/4660-119-0x0000000000310000-0x00000000010E9000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4660-116-0x0000000000310000-0x00000000010E9000-memory.dmp	upx
behavioral2/memory/4660-119-0x0000000000310000-0x00000000010E9000-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

pid	Process
4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 2100	4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe	68
PID 4660 wrote to memory of 2100	4660	1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe	68
PID 2100 wrote to memory of 5064	2100	cmd.exe	70
PID 2100 wrote to memory of 5064	2100	cmd.exe	70

C:\Users\Admin\AppData\Local\Temp\1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
"C:\Users\Admin\AppData\Local\Temp\1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4660
- 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\1897a5a90ff44754425b283a5785c6e7d8c1c840829f9d00b9306a0e224c25df.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:5064

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/4660-116-0x0000000000310000-0x00000000010E9000-memory.dmp

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memory/4660-119-0x0000000000310000-0x00000000010E9000-memory.dmp

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