ytstealer | 6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e

Analysis

max time kernel
52s
max time network
180s
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 01:59

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General

Target

6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
Size

4.0MB
MD5

ad09f5884e2dc633a09e6bd9dda847d6
SHA1

90516c0f5d4eb858007f5e289e7f923607f138c0
SHA256

6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e
SHA512

6e14585928024fa1fa8c1e98f081bd028dadc4bbcd034a90d43e2bcedce77df114b7b74eaeff8ad6815d27b33cb6d0af263af644f54feca809d30fa7c075e77d
SSDEEP

98304:gCG7W7lIFvHcmst/tSs6cpgZBP5RarZIWIocK+cb4dcFjwJdkDW:gCWWCF0mst12dLGlIWVcKx4ujwJK

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/2080-120-0x0000000000910000-0x00000000016D9000-memory.dmp	family_ytstealer
behavioral2/memory/2080-123-0x0000000000910000-0x00000000016D9000-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/2080-120-0x0000000000910000-0x00000000016D9000-memory.dmp	upx
behavioral2/memory/2080-123-0x0000000000910000-0x00000000016D9000-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:

6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe

pid	process
2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.execmd.exe

description	pid	process	target process
PID 2080 wrote to memory of 4940	2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe	cmd.exe
PID 2080 wrote to memory of 4940	2080	6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe	cmd.exe
PID 4940 wrote to memory of 4992	4940	cmd.exe	choice.exe
PID 4940 wrote to memory of 4992	4940	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
"C:\Users\Admin\AppData\Local\Temp\6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2080

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\6f9457ce5bf1a8430bfe4f87f2b6374ff67a5b13c23cbebcd710158b1756fd8e.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4940

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4992

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/2080-120-0x0000000000910000-0x00000000016D9000-memory.dmp

Filesize
13.8MB

Download
memory/2080-123-0x0000000000910000-0x00000000016D9000-memory.dmp

Filesize
13.8MB

Download
memory/4940-121-0x0000000000000000-mapping.dmp

Download
memory/4992-122-0x0000000000000000-mapping.dmp

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