ytstealer | 4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c

Analysis

max time kernel
52s
max time network
182s
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 01:42

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General

Target

4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
Size

4.0MB
MD5

7f8c8bce5779f7dcc7283899d0238432
SHA1

8278e8264bf32ac831cd65dc90e53d9bcd5eb4c4
SHA256

4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c
SHA512

b75f4098cd1c4b7db0d395b6c087311db58be0f403b5b0635dc735ae047405cbfe40d76901504b7734f616cccca3ade0a07eb7a1b3e30707157cb7ff17985db1
SSDEEP

98304:8ar7xanLTcX3AVe9xIthoJ9nNw4W/dWqNReGXcNdV:8JQTxAoVw4W4q/e4

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/3176-115-0x0000000001220000-0x0000000001FF9000-memory.dmp	family_ytstealer
behavioral2/memory/3176-118-0x0000000001220000-0x0000000001FF9000-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/3176-115-0x0000000001220000-0x0000000001FF9000-memory.dmp	upx
behavioral2/memory/3176-118-0x0000000001220000-0x0000000001FF9000-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:

4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe

pid	process
3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.execmd.exe

description	pid	process	target process
PID 3176 wrote to memory of 4708	3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe	cmd.exe
PID 3176 wrote to memory of 4708	3176	4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe	cmd.exe
PID 4708 wrote to memory of 4796	4708	cmd.exe	choice.exe
PID 4708 wrote to memory of 4796	4708	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
"C:\Users\Admin\AppData\Local\Temp\4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3176

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\4289c2ea1273ca1b4fc85b7898af3744140363f348e06caaa11d44dfd0ae4a3c.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4708

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4796

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

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Downloads

memory/3176-115-0x0000000001220000-0x0000000001FF9000-memory.dmp

Filesize
13.8MB

Download
memory/3176-118-0x0000000001220000-0x0000000001FF9000-memory.dmp

Filesize
13.8MB

Download
memory/4708-116-0x0000000000000000-mapping.dmp

Download
memory/4796-117-0x0000000000000000-mapping.dmp

Download