Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84c2480e3cb2353…

MALICIOUS

PDF

125.7 KB Created: 2020-07-08 23:45:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d852da363f86693ab7e08c4cb9ab3099 SHA-1: 0ec3a3deb44e73cdc745ccf569d3308483466cf2 SHA-256: f84c2480e3cb235387e597ed2cf937d9f78ee68438a9e490b52aca1df69587fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links, with one specifically pointing to a redirector associated with malicious activity. The document body, though heavily obfuscated, contains keywords related to 'criminal investigation manual' and a URL that aligns with the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic, suggesting a social engineering pretext. The presence of numerous external PDF links further indicates a link farm designed to distribute malicious content or facilitate phishing.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ttraff.ru/wb?keyword=criminal%20investigation%20manual%202010%20pdf
    • http://files.thealbertafloodroseproject.com/uploads/1/3/0/9/130969555/13cd00738d.pdf
    • http://files.bellacalore.com/uploads/1/3/0/8/130814279/mumubimogamu-fupedevumebat-ropetiwajo.pdf
    • http://files.bonafidegreengoods.com/uploads/1/3/1/4/131437823/d7f6c2631bd3af.pdf
    • http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdf
    • http://files.eastafricanscholarsfund.org/uploads/1/3/0/7/130776718/vemofuva.pdf
    • http://files.infinityproductionsedu.com/uploads/1/3/1/6/131636914/movesuzulo.pdf
    • http://files.kwconservation.org/uploads/1/3/1/4/131437636/7633d5.pdf
    • http://files.theceoexperts.com/uploads/1/3/0/8/130873894/nopati.pdf
    • https://zokonexobil.files.wordpress.com/2020/07/48521964326.pdf
    • https://jodupirif535214197.files.wordpress.com/2020/06/98770976009.pdf
    • https://mitugopagav.files.wordpress.com/2020/07/jewajado.pdf
    • https://dazapume.files.wordpress.com/2020/06/pizuf.pdf
    • https://xunukadamed.files.wordpress.com/2020/06/70401515076.pdf
    • https://suzoxafa.files.wordpress.com/2020/06/46040299187.pdf
    • https://wivezojajut.files.wordpress.com/2020/06/41291063837.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/birizakidunupujudexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xasojikunu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a42b.bin
1d7df455352b6affc6bfc419a70ab9638b3d9df07f7daf9475382fae0a9b36c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x1A42B 5652 bytes
font_01_sfnt_off0001b753.bin
d42576e9f45916b84d84f892642ebf1abe62e4043a76646a43873061cbf291cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B753 16472 bytes