ytstealer | 7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a

Analysis

max time kernel
43s
max time network
49s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
30-08-2022 02:02

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General

Target

7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe
Size

4.0MB
MD5

e46201b34c78ed8859f45896c2729e02
SHA1

95a0ad6d68dbdd054b481d65cf4edff0ebd0dd79
SHA256

7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a
SHA512

703e60d80b115854cf7ff5cdd685434e787aa4604fa139f2dc9f431849e49ae735754177934e57ac2f1e082030b10708b68a5d283ba0add93b5edf7e340ff896
SSDEEP

98304:HfTGFANcLC1HBHS53fizQcbJ9FSS2oE4jqFaFYn1k/Z:HsANgCZY5vizQkJyoEMMa6cZ

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/1820-54-0x0000000000050000-0x0000000000E18000-memory.dmp	family_ytstealer
behavioral1/memory/1820-57-0x0000000000050000-0x0000000000E18000-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/1820-54-0x0000000000050000-0x0000000000E18000-memory.dmp	upx
behavioral1/memory/1820-57-0x0000000000050000-0x0000000000E18000-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:

7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe

pid	process
1820	7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe
1820	7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.execmd.exe

description	pid	process	target process
PID 1820 wrote to memory of 1728	1820	7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe	cmd.exe
PID 1820 wrote to memory of 1728	1820	7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe	cmd.exe
PID 1820 wrote to memory of 1728	1820	7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe	cmd.exe
PID 1728 wrote to memory of 368	1728	cmd.exe	choice.exe
PID 1728 wrote to memory of 368	1728	cmd.exe	choice.exe
PID 1728 wrote to memory of 368	1728	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe
"C:\Users\Admin\AppData\Local\Temp\7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1820
- 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\7a832f1d820e0caf91366b4b040398ba8861dac6f328393922323ff1cf8bcd0a.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\system32\choice.exe
    choice /C Y /N /D Y /T 0
    3⤵
    PID:368

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/368-56-0x0000000000000000-mapping.dmp

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memory/1728-55-0x0000000000000000-mapping.dmp

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memory/1820-54-0x0000000000050000-0x0000000000E18000-memory.dmp

Filesize
13.8MB

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memory/1820-57-0x0000000000050000-0x0000000000E18000-memory.dmp

Filesize
13.8MB

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