Malicious PDF — malware analysis report

Static analysis result for SHA-256 baf9b3a42310f797…

MALICIOUS

PDF

51.2 KB Created: 2020-08-07 14:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 655d3e937d16a547feb424fe6e47df17 SHA-1: 3b4aab90d5218016c15ca992dac1a3e41b728bb5 SHA-256: baf9b3a42310f797295d92444c109945188ed7486d0a33539c887f5dbf506269
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bc+b+caste+list+in+ap+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/7867/1783/files/download_ebook_the_hunger_games_bahasa_indonesia.pdf'. The document body, though partially corrupted, contains the malicious URL, suggesting a social engineering lure to redirect users to malicious infrastructure.

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=bc+b+caste+list+in+ap+pdf
    • http://files.daverobinsonphotos.com/uploads/1/3/1/4/131406433/c235f9fe.pdf
    • http://files.engiellepaguican.com/uploads/1/3/2/6/132681812/1030394.pdf
    • http://files.centennialvocalmusic.com/uploads/1/3/0/8/130814594/01b4066.pdf
    • http://files.x-c-l.org/uploads/1/3/0/7/130775156/wanem-nevule-rufawa-jidisoliwi.pdf
    • http://files.westofirelandwomensminimarathon.com/uploads/1/3/1/4/131406947/nojajejoraxev-xetamug-vivonorinaxuxaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7867/1783/files/download_ebook_the_hunger_games_bahasa_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/marulifibaziwijosa.pdf
    • https://cdn.shopify.com/s/files/1/0432/0205/2257/files/fodin.pdf
    • https://cdn.shopify.com/s/files/1/0450/6674/8056/files/algebra_2_common_core_big_ideas_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0438/2015/5037/files/14463379599.pdf
    • https://cdn.shopify.com/s/files/1/0429/2955/3575/files/logical_framework_example.pdf
    • https://cdn.shopify.com/s/files/1/0434/1645/3272/files/daxarolalow.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/consumer_reports_microwave.pdf
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/95653459654.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/67353427870.pdf
    • https://cdn.shopify.com/s/files/1/0430/8143/3242/files/sekavoxoliw.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_off00007b87.bin
1195416305070cbbc236a6030425f0621ff396efc48c2698c5396769034f0616
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B87 5244 bytes
font_01_sfnt_off00008d70.bin
9e3aff6116ce1b510ef887733be96dec282c5c39cea21d4daa494302fcb61ac3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D70 15832 bytes