Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8fd766d963b0039…

MALICIOUS

PDF

41.4 KB Created: 2020-08-02 15:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 007960c5b7b87965ae4585755a0c132b SHA-1: c0eece6df5067f241a3aad69fd322ba751652121 SHA-256: f8fd766d963b0039edc79674dbf42605362e7c16d9243fce38a8f27a8bfdf518
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector pointing to a lure for 'office 2016 mac crack'. The presence of a visual download button further supports the social engineering aspect of this attack. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious intent.

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=office+2016+mac+crack
    • http://files.christ-episcopal-xenia.org/uploads/1/3/2/7/132740350/8266965.pdf
    • http://files.economicequine.com/uploads/1/3/2/6/132681080/doteromubonovinilo.pdf
    • http://files.amomentonthelips.co.uk/uploads/1/3/1/0/131070888/8169283.pdf
    • http://files.stickemupracks.ca/uploads/1/3/1/1/131163867/gotunugodise_dubewawaloxav.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/79157206586.pdf
    • https://cdn.shopify.com/s/files/1/0434/6865/2697/files/bls_provider_manual_2017_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/47041823681.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/xosegutijidawewolu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/vemurebosizafuguw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32686583269.pdf
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/muzezawuraxezazidowogow.pdf
    • https://cdn.shopify.com/s/files/1/0432/3462/3643/files/fuwedivazekarudefa.pdf
    • https://cdn.shopify.com/s/files/1/0438/0157/5586/files/91855161273.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/arrl_general_class_license_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/31643516601.pdf
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/bewokujubiwidinadozefoze.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005645.bin
efc424fd8df66e5bf9e3f71cb54351e91d463e2d1c4ec6380801920b46fa7c3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5645 4880 bytes
font_01_sfnt_off000066d7.bin
143b222e1863bd3f9ea24202e2bb211370db3d3db4abb5f47aa5493c6d4c35e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x66D7 10492 bytes
font_02_sfnt_off00008ab5.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB5 4324 bytes