ytstealer | c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8

Analysis

max time kernel
39s
max time network
45s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
02-08-2022 05:21

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General

Target

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
Size

4.0MB
MD5

27167814efa448fec2bbcf35991f5eca
SHA1

85a1aae8faa4fbd0985fa357586b3c5bc4f4e3ab
SHA256

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8
SHA512

3832c84b76db5404fb67b5d2c90c59a012dff4631bf9fa276879d11f65ecd14ed0b1b00af6d01eb3854279a874aca5e2d763ff6d316505e67276adc92232a85b

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/2032-54-0x0000000000120000-0x0000000000EF8000-memory.dmp	family_ytstealer
behavioral1/memory/2032-57-0x0000000000120000-0x0000000000EF8000-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/2032-54-0x0000000000120000-0x0000000000EF8000-memory.dmp	upx
behavioral1/memory/2032-57-0x0000000000120000-0x0000000000EF8000-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 2 IoCs

Processes:

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe

pid	process
2032	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe
2032	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.execmd.exe

description	pid	process	target process
PID 2032 wrote to memory of 268	2032	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe	cmd.exe
PID 2032 wrote to memory of 268	2032	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe	cmd.exe
PID 2032 wrote to memory of 268	2032	c3681da8cdbba19041d36bb0fbec162ddaae98a2ba9fe2b29d252e26f64a4ec8.exe	cmd.exe
PID 268 wrote to memory of 1712	268	cmd.exe	choice.exe
PID 268 wrote to memory of 1712	268	cmd.exe	choice.exe
PID 268 wrote to memory of 1712	268	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:2032
- 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:268
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:1712

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

Replay Monitor

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Downloads

memory/268-55-0x0000000000000000-mapping.dmp

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memory/1712-56-0x0000000000000000-mapping.dmp

Download
memory/2032-54-0x0000000000120000-0x0000000000EF8000-memory.dmp

Filesize
13.8MB

Download
memory/2032-57-0x0000000000120000-0x0000000000EF8000-memory.dmp

Filesize
13.8MB

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