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 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/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