Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecae46ba3e1eef75…

MALICIOUS

PDF

51.8 KB Created: 2020-08-09 20:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88ef294a943bd1a8701062dbe534d270 SHA-1: 846c8a18bb9d6f5a8ada814770fdcf5e9b16d3e9 SHA-256: ecae46ba3e1eef75110bf95b8607014c3ca5743249cdfeeaf52108c932c6219a
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, pointing to 'https://ttraff.cc/pify?keyword=reading+skills+and+strategies+pdf'. Additionally, it features a PDF link farm heuristic, indicating a large number of external links, many hosted on shopify.com and other domains. The document body contains obfuscated text and a URL that appears to be part of the redirection chain. The primary intent seems to be redirecting users to malicious sites, likely for phishing or to download further malware.

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=reading+skills+and+strategies+pdf
    • http://files.educatoralexander.com/uploads/1/3/2/7/132741110/872bb0b8b.pdf
    • http://files.drjohnmatthai.com/uploads/1/3/1/4/131453588/nameluvevetamufudulo.pdf
    • http://files.adagencyvaluations.com/uploads/1/3/0/7/130776795/5646819.pdf
    • http://files.fishandswallowproductions.com/uploads/1/3/0/7/130776374/dudisawa.pdf
    • http://files.loganfootball.com/uploads/1/3/1/3/131398591/xugoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/64781643110.pdf
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/19023855197.pdf
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/pathophysiology_of_hiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/pulojikakajakopewe.pdf
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/6_xname_gx4x_s_5mu10gusq_ckut2ls452kczm_4_1791.pdf
    • https://cdn.shopify.com/s/files/1/0433/9338/4599/files/pezulisawim.pdf
    • https://cdn.shopify.com/s/files/1/0434/2710/2876/files/biological_wastewater_treatment_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/ancient_greek_empire.pdf
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/cambridge_english_proficiency_masterclass_student_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/77256252344.pdf
    • https://cdn.shopify.com/s/files/1/0437/9430/1085/files/biomaterials_science_ratner_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8656/0936/files/ansi_b16_5.pdf
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/manozutisirugaripa.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/pudagoximiza.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/
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/manozuti

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ccb.bin
da6b128f32028d2e3e42cef505ad6976100307434688c402202154aba59a372a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCB 5280 bytes
font_01_sfnt_off00009edd.bin
375cdcded85a1367fb403e441e6657f9e24d623328c8f336a6d8ab71afcec710
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDD 10236 bytes