ytstealer | 4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097

Analysis

max time kernel
41s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
15-09-2022 03:29

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General

Target

4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe
Size

4.0MB
MD5

ce3bedcfe76cce58d4bcd71a0e477858
SHA1

c2c710d704548048a9010673437aa5f49ae69013
SHA256

4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097
SHA512

cd9fa8b3678fd618f412705b07ada41ac8e1a72393e5214b12679b808a2f8e30b869bb16b7d8973f0708d9b10a68c51a7a27c1dbd117b163644b489908a7e90a
SSDEEP

98304:aC+I31cuwmhMATP/3PypwvMF4saKW1tBMNaIMW7hfoN0ZrYSUmF79H:aulEeTnqWvMF3aT1tBMsIMTN0Z3UmF

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
behavioral1/memory/1248-54-0x0000000000AC0000-0x0000000001889000-memory.dmp	family_ytstealer
behavioral1/memory/1248-56-0x0000000000AC0000-0x0000000001889000-memory.dmp	family_ytstealer

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1248-54-0x0000000000AC0000-0x0000000001889000-memory.dmp	upx
behavioral1/memory/1248-56-0x0000000000AC0000-0x0000000001889000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1636 cmd.exe
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

pid	process
1636	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe

pid	process
1248	4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe
1248	4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.execmd.exe

description	pid	process	target process
PID 1248 wrote to memory of 1636	1248	4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe	cmd.exe
PID 1248 wrote to memory of 1636	1248	4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe	cmd.exe
PID 1248 wrote to memory of 1636	1248	4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe	cmd.exe
PID 1636 wrote to memory of 1544	1636	cmd.exe	choice.exe
PID 1636 wrote to memory of 1544	1636	cmd.exe	choice.exe
PID 1636 wrote to memory of 1544	1636	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe
"C:\Users\Admin\AppData\Local\Temp\4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1248

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\4bcb1a4dcb978ce7307748278a3afadc1414b9d4f922b7e7d495d3b7026a7097.exe
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:1544

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

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Downloads

memory/1248-54-0x0000000000AC0000-0x0000000001889000-memory.dmp

Filesize
13.8MB

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memory/1248-56-0x0000000000AC0000-0x0000000001889000-memory.dmp

Filesize
13.8MB

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memory/1544-57-0x0000000000000000-mapping.dmp

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memory/1636-55-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads