ytstealer | 143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f

Analysis

max time kernel
56s
max time network
185s
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 01:17

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General

Target

143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
Size

4.0MB
MD5

4fe09d2a93223b9f13155163a376528f
SHA1

6df6b3ef49e89132aed0333665b4df3d5f1be790
SHA256

143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f
SHA512

e9b3e199775e0a394a97a678bf7d88f32e598c22d5ad9f7a01633ac36c42e2939ee9f42245315510841a3ddda97995e40de82c3f5295f872e95690b5d8512d51
SSDEEP

49152:c38sKPAvux0C6mqL/cnv0YheyF6+u+8mEKyTX0D5caUHX/9saX0ARU887xnlX5Dy:YKSbcP+mWKqkD5NUHXFs21Q7Hiy0f

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
behavioral2/memory/388-115-0x00000000009E0000-0x00000000017B9000-memory.dmp	family_ytstealer
behavioral2/memory/388-118-0x00000000009E0000-0x00000000017B9000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/388-115-0x00000000009E0000-0x00000000017B9000-memory.dmp	upx
behavioral2/memory/388-118-0x00000000009E0000-0x00000000017B9000-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:

143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe

pid	process
388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.execmd.exe

description	pid	process	target process
PID 388 wrote to memory of 2136	388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe	cmd.exe
PID 388 wrote to memory of 2136	388	143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe	cmd.exe
PID 2136 wrote to memory of 2036	2136	cmd.exe	choice.exe
PID 2136 wrote to memory of 2036	2136	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
"C:\Users\Admin\AppData\Local\Temp\143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:388

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\143f908b15dd5a9a7fbc14014312d3acf4ab443dddf064f8cfcf1e09e795975f.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:2136

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:2036

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/388-115-0x00000000009E0000-0x00000000017B9000-memory.dmp

Filesize
13.8MB

Download
memory/388-118-0x00000000009E0000-0x00000000017B9000-memory.dmp

Filesize
13.8MB

Download
memory/2036-117-0x0000000000000000-mapping.dmp

Download
memory/2136-116-0x0000000000000000-mapping.dmp

Download