Malicious PDF — malware analysis report

Static analysis result for SHA-256 4886f133fc37c3a3…

MALICIOUS

PDF

81.6 KB Created: 2020-08-14 22:33:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cafda114d3fb11adedf0f9c3e4b3b6eb SHA-1: 5cafa541e4de216ed7b8914294d2b3ca256442cf SHA-256: 4886f133fc37c3a379862f4464685c108b50e682305307e53ff0372952776096
160 Risk Score

Malware Insights

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

The PDF file contains a lure for a "Delhi belly movie 300mb free" download, which is a common tactic for advance-fee scams. It embeds a link to a redirector at 'ttraff.ru', which is flagged as malicious. The document also contains a large number of links to PDF files hosted on Shopify, likely part of a link farm to improve SEO for malicious content. No scripts were extracted from this sample.

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/pify?keyword=delhi+belly+movie+300mb+free
    • http://files.dunbartonlibrary.org/uploads/1/3/1/6/131636946/zowenumofu.pdf
    • http://sesuz.risenchurchnc.org/uploads/1/3/1/1/131164250/f61f236e5327.pdf
    • http://imgfil.com/1cgb31Download
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/reality_is_broken.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/26199160999.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/38549188872.pdf
    • https://cdn.shopify.com/s/files/1/0430/0816/3993/files/catholic_rosary_prayers_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/0944/0935/files/bronconeumonia_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/windows_10_pro_key_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/5078/5173/files/videoscribe_tutorial_francais.pdf
    • https://cdn.shopify.com/s/files/1/0438/9617/6795/files/strength_of_materials_singer.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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009788.bin
a393f1c718ae849ab5aa81271eac20a38c37b4f80d16fae2277b0059781cf1f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9788 5228 bytes
font_01_sfnt_off0000a947.bin
87985804ebf98b1030980f20b4e39595e1aa76caccafc3e7d64f2ca02509db1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA947 20968 bytes
font_02_sfnt_off0000c979.bin
04fd77b843ed1fe552b53011d9bec3a5be20daba9c48b54e8ca199224801523e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC979 7976 bytes
font_03_sfnt_off0000e063.bin
5e0676e134781f2a21c06a0d045eebc95ad2f72f5ed7fc876ffdcead7ccbe471		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE063 2276 bytes
font_04_sfnt_off0000ea2d.bin
716b5059f30916538e1a171a280327347c18e566bae2f1645e09da7e1227fe1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2D 15204 bytes
font_05_sfnt_off000119cc.bin
e5f30af547b55dfbbae63869c45e93d04e829a64999393572a2275da8290585e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x119CC 2056 bytes
font_06_sfnt_off000122ba.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x122BA 16164 bytes

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