MALICIOUS — 64d6925c0c945e4867e62a6218ab12415de10354471a99ccf32150b4efb36f8d.exe
MALICIOUS — 64d6925c0c945e4867e62a6218ab12415de10354471a99ccf32150b4efb36f8d.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the AsyncRAT family. 7 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
64d6925c0c945e4867e62a6218ab12415de10354471a99ccf32150b4efb36f8d - SHA-1:
73a75c5bf80ea9c1c05e5eb64b44856bbe63ee54 - MD5:
a573f6f6fe0b8a7db4f8a002271612ee - imphash:
8d4e202f18aba9ac3d4fbbd117ae36d8 - ssdeep:
98304:VHrsD5JaXipLdp/Q83L+UCj/BsV+Zm3vv:VwNNBpV+UnwK - TLSH:
T1A4685B9610173091C5B2EE04F921C9ECC053F495AA71C78E974BE51DE2EEAF7CAE44A0 - Submitted as: 64d6925c0c945e4867e62a6218ab12415de10354471a99ccf32150b4efb36f8d.exe
- File type: pe · Size: 7879680 bytes
- Verdict: malicious (98/100) · Family: AsyncRAT
Detections (7 of 55 engines)
- YARA: MalwareAnalyser built-in: Suspicious_PowerShell_Download_Exec
- capa (capabilities): capability:execution/powershell
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.meta
- YARA: delivr.to detections: DLV_LNK_PowerShell_Launcher
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Kaspersky (KVRT): Backdoor.Win32.DarkVNC.aui
MITRE ATT&CK
YARA
- Suspicious_PowerShell_Download_Exec
Why this verdict
The malicious score of 98/100 is the fusion of 10 weighted signals:
- Encoded/hidden PowerShell download-and-exec (rule
Suspicious_PowerShell_Download_Exec) - yara signal, weight 0.70, confidence 0.90 - Extracted AsyncRAT config (1 C2) - engine signal, weight 0.80, confidence 0.65
- execute via PowerShell (rule
execute via PowerShell) - capa signal, weight 0.40, confidence 0.80 - Contacted 26 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: delivr.to detections flagged DLV_LNK_PowerShell_Launcher (rule
DLV_LNK_PowerShell_Launcher) - engine signal, weight 0.35, confidence 0.70 - YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Embedded network infrastructure: http://136.244.100.54:9643, https://docs.rs/rustls/latest/rustls/manual/_03_howto/index.html#unexpected-eof, 136.244.100.54 - static signal, weight 0.35, confidence 0.60
- Packing/obfuscation: high-entropy-sections:.meta, Microsoft Linker - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
2303 behavior events · 0 ATT&CK techniques · 0 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Embedded URLs
- http://136.244.100.54:9643
- https://docs.rs/rustls/latest/rustls/manual/_03_howto/index.html#unexpected-eof
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787741039&P2=404&P3=2&P4=aHiGO9F%2f%2f2XxTSNIdyxS6TozR%2fVwNmxkI0C4TZ2sPWxXFUDzy0H4NdxccZfPfK5ftoE7YSdinh%2bC%2fTeEVyEsLQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- openssl.org
- index.crates.io
- 1.io
- docs.rs
Embedded IP addresses
- 136.244.100.54
- 20.19.18.17
- 16.15.14.13
- 74.178.76.44
- 52.182.141.63
- 52.123.252.192
- 20.247.184.142
- 57.155.101.212
- 4.230.171.124
- 135.232.92.137
- 74.178.240.51
- 20.42.65.88
- 20.76.201.171
- 52.123.128.14
- 52.123.129.14
- 20.184.175.8
- 52.110.12.55
- 135.233.45.223
- 52.110.12.20
- 203.26.79.13
- 52.148.114.188
- 40.84.97.4
- 4.150.223.108
- 20.50.80.215
- 52.123.252.225
Registry keys
- HKLM\SYSTEM\CurrentControlSet\Services\
- HKLM\SOFTWARE\AVAST
File paths
- C:\UsersH
- c:\program
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\smallvec-1.15.2\src\lib.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-tungstenite-0.29.0\src\lib.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-native-tls-0.3.1\src\lib.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\reqwest-0.13.4\src\async_impl\response.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-1.52.3\src\net\tcp\stream.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-tungstenite-0.29.0\src\tls.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-tungstenite-0.29.0\src\connect.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-tungstenite-0.29.0\src\handshake.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-1.52.3\src\sync\mpsc\bounded.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tungstenite-0.29.0\src\handshake\machine.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\http-1.4.2\src\header\map.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\base64-0.22.1\src\encode.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-1.52.3\src\io\read_buf.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-1.52.3\src\runtime\scheduler\multi_thread\queue.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tungstenite-0.29.0\src\protocol\frame\frame.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zopfli-0.8.3\src\deflate.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zopfli-0.8.3\src\symbols.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zopfli-0.8.3\src\squeeze.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zip-2.4.2\src\write.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zip-2.4.2\src\aes.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zopfli-0.8.3\src\hash.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\zopfli-0.8.3\src\lz77.rs
- C:\Users\maxro\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tokio-1.52.3\src\runtime\context\current.rs
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report