ytstealer | 8edeb501cb81a79e444ab29f7be396990deca5838fb8120565113b6aa75a5bfe

Analysis

max time kernel
150s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
25-08-2022 21:08

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General

Target

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
Size

4.0MB
MD5

27167814efa448fec2bbcf35991f5eca
SHA1

85a1aae8faa4fbd0985fa357586b3c5bc4f4e3ab
SHA256

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8
SHA512

3832c84b76db5404fb67b5d2c90c59a012dff4631bf9fa276879d11f65ecd14ed0b1b00af6d01eb3854279a874aca5e2d763ff6d316505e67276adc92232a85b
SSDEEP

98304:z5B42wq73hy6pTzQDl5sY8SCekSFxfNfe2K/FpK:z5PR73hy6S7kIkSFx5e2KG

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/1872-132-0x0000000000910000-0x00000000016E8000-memory.dmp	family_ytstealer
behavioral2/memory/1872-134-0x0000000000910000-0x00000000016E8000-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/1872-132-0x0000000000910000-0x00000000016E8000-memory.dmp	upx
behavioral2/memory/1872-134-0x0000000000910000-0x00000000016E8000-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:

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe

pid	process
1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.execmd.exe

description	pid	process	target process
PID 1872 wrote to memory of 4820	1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe	cmd.exe
PID 1872 wrote to memory of 4820	1872	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe	cmd.exe
PID 4820 wrote to memory of 4412	4820	cmd.exe	choice.exe
PID 4820 wrote to memory of 4412	4820	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
"C:\Users\Admin\AppData\Local\Temp\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1872

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\c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4820

C:\Windows\system32\choice.exe
choice /C Y /N /D Y /T 0
3⤵
PID:4412

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/1872-132-0x0000000000910000-0x00000000016E8000-memory.dmp

Filesize
13.8MB

Download
memory/1872-134-0x0000000000910000-0x00000000016E8000-memory.dmp

Filesize
13.8MB

Download
memory/4412-135-0x0000000000000000-mapping.dmp

Download
memory/4820-133-0x0000000000000000-mapping.dmp

Download