Malicious PDF — malware analysis report

Static analysis result for SHA-256 961c293a689d0648…

MALICIOUS

PDF

49.9 KB Created: 2020-08-22 16:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 895f2aafdcb0cc9e8f4e1687aa78f0e2 SHA-1: 7cdf167f0cb189627cc815a6924aef237599b4f9 SHA-256: 961c293a689d0648ea228db9ccbdb3cfc3be5bac666e9c35be6912e150bf45b4
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=full+marksheet+ssc+2019'. This indicates a phishing attempt disguised as exam results. The document also contains a PDF link farm heuristic, suggesting an attempt to generate traffic or distribute content through numerous links. While no scripts were extracted, the presence of a malicious redirector URL is a strong indicator of a phishing or scam campaign.

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.com/pify?keyword=full+marksheet+ssc+2019
    • http://files.innovativearts.com/uploads/1/3/0/9/130969053/7647927.pdf
    • http://zolep.bellaswyoming.com/uploads/1/3/0/9/130968984/pitaketubefim_fegitovoravekib.pdf
    • http://gotilo.quackquackcolorado.com/uploads/1/3/0/8/130874118/0e2d5b50cf0473.pdf
    • http://files.victoryfitnesstimmins.com/uploads/1/3/1/3/131384492/6006222.pdf
    • https://cdn.shopify.com/s/files/1/0433/6215/6702/files/90234721953.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8041/files/how_to_cite_a_document_found_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/xejugudivowuweleje.pdf
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/garofof.pdf
    • https://cdn.shopify.com/s/files/1/0453/8499/0888/files/pet_bottle_blowing_machine.pdf
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/ironworkers_local_40.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/gotofujasi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8096/4509/files/nevada_medicaid_authorized_representative_form.pdf
    • https://cdn.shopify.com/s/files/1/0432/7260/1756/files/zazurofidapozodufafedemin.pdf
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/98174120472.pdf
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/suniwixefubodoxozojekabat.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/59128447679.pdf
    • https://cdn.shopify.com/s/files/1/0432/8259/6000/files/certificate_templates_word_free.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063fd.bin
b3a3ae083e62d67242f6a6c0a8375f19102c9f47b5d440b6e997bc6ab9fe2b49
pdf-font-stream PDF embedded font (sfnt) at offset 0x63FD 5160 bytes
font_01_sfnt_off0000757d.bin
a6e6be4b11137d77f0c01444719b81f4026734980b5204c5be40455fb4bb5ebe
pdf-font-stream PDF embedded font (sfnt) at offset 0x757D 6084 bytes
font_02_sfnt_off0000891d.bin
b517722da01018fc416c7de54dd3a12414455e907d6dc2dc5eb16352578acbec
pdf-font-stream PDF embedded font (sfnt) at offset 0x891D 10212 bytes
font_03_sfnt_off0000ac01.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xAC01 4324 bytes