Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdf69a578648cef9…

MALICIOUS

PDF

43.6 KB Authoring application: Serif PagePlus
MD5: cb97cbf6cdb50f44331f1af61d74c3c4 SHA-1: 1a36dda548ddc3cb19eb23b671b72a24484c9580 SHA-256: cdf69a578648cef995e24689318c80e93546dd81dae7fc90ea0d1a3b7be4ffea
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified as a PDF_SEO_LINK_FARM heuristic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body, though heavily corrupted, contains references to URLs that are likely part of this link farm, suggesting a phishing or SEO manipulation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://sofetifimekeva.weebly.com/uploads/1/3/0/5/130590383/fituv.pdf
    • http://mover-oy.icu/uploads/2020/01/28/bbda0ed8dae6f.pdf
    • http://lifeindustries.org/uploads/1/3/0/4/130476047/7673279.pdf
    • http://battlecreekag.com/uploads/1/3/0/5/130589156/875792.pdf
    • http://weddingenchanted.com/uploads/1/3/0/6/130603882/61e3dd9a12d7e1a.pdf
    • https://rapisavuw.weebly.com/uploads/1/3/0/2/130288334/lerokixojemif_lipasekidumasa.pdf
    • http://becausegoodness.com/uploads/1/3/0/3/130379111/7204661.pdf
    • http://morganelwell.net/uploads/1/3/0/5/130548152/09383fb07ad.pdf
    • http://pattiepperson.com/uploads/1/3/0/6/130604229/lemudinexoke.pdf
    • http://repozo.bc-sd.online/uploads/2020/01/28/3e1c6fb7f9b3fe.pdf
    • https://pafadazedikin.weebly.com/uploads/1/3/0/3/130313249/9967819.pdf
    • http://gavakix.difmed.com/uploads/2020/01/28/bupudojidunugur-zotojakulirab-zudupowip.pdf
    • http://nuvif.chungthanhnien.com/uploads/2020/01/29/8918008.pdf
    • http://ted.pvhporuch.ru/uploads/2020/01/29/pubapo.pdf
    • http://coastalplumbingservices.com/uploads/1/3/0/6/130621533/lanaruxeloponil_minesomik_vumopuzulose_wapuralifivo.pdf
    • http://gemalchemist.com/uploads/1/3/0/4/130483690/fa64f.pdf
    • http://nationalfootballcheerleadersalumni.org/uploads/1/3/0/6/130620700/2919815.pdf
    • http://circleofserendipity.net/uploads/1/3/0/6/130620282/20846e07.pdf
    • https://nezubizobuvawu.weebly.com/uploads/1/3/0/5/130539933/1549914.pdf
    • http://mastercraftglobal.com/uploads/1/3/0/4/130476320/sufebosulut.pdf
    • http://tax.academy-millionaires.com/uploads/2020/01/29/zetorejatenog_bebig_rogulixojaf.pdf
    • http://thimori.com/uploads/1/3/0/4/130490378/1475685.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/6/130639662/130639662.html#brunei+darussalam+form+of+government

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016bf.bin
b184bc05ab56cf5694617953e5d03c557995be6c2549f6d16567d2b4345bc8ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16BF 7904 bytes
font_01_sfnt_off00006341.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 16036 bytes

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