Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d067690d648d10…

MALICIOUS

PDF

43.7 KB Created: 2020-07-14 16:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb266bc31363f1b083c160960eb6ea5c SHA-1: 2dfa60b677f772e4dc313551d6dad6920e63b73c SHA-256: c6d067690d648d108ee1475ed3efc53786b491f9dd0d2b81c1cfb47b1c4e6190
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external PDF links, indicative of a link farm or SEO manipulation tactic. The presence of a visual download button further supports a deceptive user interaction. The primary goal appears to be directing users to potentially harmful external content or manipulating search results.

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.ru/pify?keyword=absolute+monarchs+worksheet+pdf
    • http://files.drlakshmisharma.com/uploads/1/3/0/8/130874422/1321880.pdf
    • http://files.boob-ology.co.uk/uploads/1/3/2/3/132303374/vinewagejar-kubojaba-rajezutiwugudow-vifiwejapi.pdf
    • http://files.mosston.school.nz/uploads/1/3/0/8/130814877/0986f8c.pdf
    • http://files.bizobike.com/uploads/1/3/1/1/131164002/pakubowosid-zovif-dolutaxajopezun.pdf
    • http://files.eatcheap-eatwell.com/uploads/1/3/1/4/131453984/kuwevoke.pdf
    • http://files.carriedi.com/uploads/1/3/0/8/130874514/semonidexu.pdf
    • http://files.morganephotos.com/uploads/1/3/0/7/130738830/vizamufufuzozirexiv.pdf
    • http://files.vicbutton.com/uploads/1/3/1/6/131636990/sofikoradito.pdf
    • http://files.louisemartinart.com/uploads/1/3/1/3/131383982/rolotosuxotosev-danevojego-fakafiwo-posurojurekej.pdf
    • https://supufomubegu.files.wordpress.com/2020/06/22939647925.pdf
    • https://goxafizazo.files.wordpress.com/2020/07/91077958460.pdf
    • https://newadekimo.files.wordpress.com/2020/06/30776964626.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0750/files/40469404339.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifivejeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/1573/2376/files/98994389645.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/pexudabeseb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdf
    • https://cdn.shopify.com/s/files/1/0433/0268/2789/files/botalemunusujatogejapapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.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_off00006aa5.bin
abb069dae1d3dc718fe4ee30fb707797265111560b00764fd7cc4d1e9feae7bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA5 5512 bytes
font_01_sfnt_off00007d37.bin
262fe803acc236715efa56898ec78ae4cc2634ebf8b6571814ec108dec2a1546
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D37 10828 bytes