Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1f09d5e01c33147…

MALICIOUS

PDF

60.8 KB Created: 2020-08-06 03:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dedc14c22e5d2289b4a4a6be97d4542 SHA-1: 773a8e3d3340e3bf673a86aaba9c20677d2132f8 SHA-256: f1f09d5e01c331478933a02f2c0b46041c252c180525ef23cbb0d876bddbeea9
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=pdf+bhagavad+gita+in+marathi'. Another critical heuristic indicates a PDF link farm, suggesting a tactic to artificially inflate search engine rankings or distribute malicious links. The presence of a visual download button lure further supports the malicious intent of directing users to harmful 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.cc/pify?keyword=pdf+bhagavad+gita+in+marathi
    • http://files.spokenwordministry.org/uploads/1/3/1/3/131398366/mozosajoxif.pdf
    • http://files.papervalleygardenclub.com/uploads/1/3/1/3/131378771/gevowosilusegar.pdf
    • http://files.ktkayakrentals.com/uploads/1/3/0/8/130813855/e25a2f28b7.pdf
    • http://files.deborahsvoice.net/uploads/1/3/2/6/132680933/mezuwomegoro-wedelojovegevex-tolipuroz.pdf
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/tubufaxuzemilepawosote.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/xadejupogo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
    • https://cdn.shopify.com/s/files/1/0431/7665/7057/files/diweledomudasetewunewu.pdf
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/andrew_ng_machine_learning_notes.pdf
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/walk_behind_forklift.pdf
    • https://cdn.shopify.com/s/files/1/0440/5559/3110/files/69722240267.pdf
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/vawesen.pdf
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/28441841339.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/24798873912.pdf
    • https://cdn.shopify.com/s/files/1/0428/5906/9599/files/68732744580.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/zusikufaxifurival.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2472/files/rowamunolumoxewus.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_off0000af3e.bin
f22b7848ea3a75efb1800a0728e6c01219cca5a7f9d449c2768a36133dc8dfd0
pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3E 5312 bytes
font_01_sfnt_off0000c133.bin
b29a64b1598decc1d2c942016995ce5b687852462c1ecf97bb9ae6aeafc0d0fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xC133 10856 bytes