Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59320bc3326716b…

MALICIOUS

PDF

47.5 KB Created: 2020-07-31 13:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46b11ef9be016f7380897d98c227e2b6 SHA-1: 25191d9b6728133d772837902e79b8e49408938e SHA-256: f59320bc3326716bc9497a75afc7458db28a95f46ee4de335e66afc352439572
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a critical threat. The file also exhibits characteristics of a link farm, as identified by 'PDF_SEO_LINK_FARM', suggesting an attempt to distribute malicious content through a large number of seemingly legitimate but controlled URLs. The document body is heavily obfuscated and does not provide clear textual intent, but the presence of these malicious links strongly suggests a phishing or malware distribution attempt.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=allan+kardec+livros+dos+espiritos+pdf
    • http://files.weelessons.com/uploads/1/3/1/0/131071035/cbbb5e5.pdf
    • http://files.nppopb.com/uploads/1/3/1/0/131070518/korapul-turusagiwupug-retevoxusezem.pdf
    • http://files.outdoorkidhandbook.com/uploads/1/3/0/8/130814216/nokef.pdf
    • http://files.agbio-inc.com/uploads/1/3/0/7/130776875/ralodukomojopi.pdf
    • http://files.outdoorkidhan
    • https://cdn.shopify.com/s/files/1/0431/3058/5239/files/21466980511.pdf
    • https://cdn.shopify.com/s/files/1/0432/1230/8637/files/mulumisisiwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3622/1341/files/55517899773.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/6145619889.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/pipigimulilepufe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
    • https://cdn.shopify.com/s/files/1/0431/0623/8626/files/xajifaliledisawafam.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/lugerup.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/35420125288.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/vixixigilipelidaba.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/rotupuwoxivilemixenome.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9833/files/kedanubaneroge.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_off00007892.bin
70dba7a35e44e61ff6433f20da385cff91d7bd80263a4594179b9ab0de94ab54
pdf-font-stream PDF embedded font (sfnt) at offset 0x7892 5052 bytes
font_01_sfnt_off000089c6.bin
10f62ae3c9785a5c1c39fb88daeda77536fa2e406810520cde3acd5e52ea9c68
pdf-font-stream PDF embedded font (sfnt) at offset 0x89C6 12404 bytes