Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa6eb60f79ecde14…

MALICIOUS

PDF

45.7 KB Created: 2020-08-18 13:26:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95d383685298c8a38a665bca0d5f6348 SHA-1: 10e76d9eb03c98e34cbd7c811d655faf27f08b24 SHA-256: aa6eb60f79ecde141594885ef03edd8b3413c5ff3ef4421644b235c62fde2b88
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, disguised with a lure related to 'Airtel tv apk for mi tv'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary link leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, many hosted on Shopify, likely to improve search engine ranking 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=airtel+tv+apk+for+mi+tv
    • http://files.isabellefournet.com/uploads/1/3/1/6/131606397/zimeziwob.pdf
    • http://files.friendsofborneo.org/uploads/1/3/1/3/131379382/gaditifasazegij.pdf
    • http://files.zeevparush.com/uploads/1/3/1/4/131483337/patinisiv.pdf
    • http://files.sentientcatalyst.com/uploads/1/3/0/8/130814297/8a6b319505718.pdf
    • http://files.authoramygale.com/uploads/1/3/0/7/130739949/4269807.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/notesetigenejulogudesod.pdf
    • https://cdn.shopify.com/s/files/1/0439/4074/1278/files/sisopexanajaketezawon.pdf
    • https://cdn.shopify.com/s/files/1/0437/1664/0917/files/triple_bottom_line_concept.pdf
    • https://cdn.shopify.com/s/files/1/0431/4028/4583/files/print_preview_shows_blank_page.pdf
    • https://cdn.shopify.com/s/files/1/0433/4298/7423/files/fexum.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/78375625480.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/9478347051.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/bengali_baby_names_with_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/4356057894.pdf
    • https://cdn.shopify.com/s/files/1/0433/5586/5242/files/bomag_bw65h_parts_manual.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_off0000753d.bin
7641eeb6074081af25061a17328b8eb206e68843b6cd6574b22eab32a435ca28
pdf-font-stream PDF embedded font (sfnt) at offset 0x753D 4984 bytes
font_01_sfnt_off00008621.bin
0dd201884e2b3e7e5a6db20c702c9391b693b7e2be40e9a86b02a43f5258f6cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8621 10504 bytes