Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f9c6f0d9ddfd7a9…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 02:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5e6efe147c5ff194d4741d9b413593c SHA-1: 2619486cb686ad63fb756da56d7fe2013fc33813 SHA-256: 6f9c6f0d9ddfd7a9c0fc2df16bf45c47e33ac256d520221e9f3d1d0b67ee2d9f
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to what appears to be a link farm designed to host various PDF documents. One prominent link, 'https://ttraff.cc/pify?keyword=how+to+pair+blueparrott+b250+xt', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to a malicious site. The ML classifier strongly indicated maliciousness, and the presence of a callback lure heuristic further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=how+to+pair+blueparrott+b250+xt
    • http://files.forstinn.com/uploads/1/3/0/8/130815115/fonedalatur_bugires_mutedelopit_kagolabono.pdf
    • http://files.tildenhouse.org/uploads/1/3/0/8/130874655/6130754.pdf
    • http://files.americanrootsuk.com/uploads/1/3/2/8/132814900/5052726.pdf
    • http://files.orchestranortheast.org.uk/uploads/1/3/0/7/130776795/8582529.pdf
    • http://files.purpleheartracing.org/uploads/1/3/2/6/132682934/8af13.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/john_mcmurry_organic_chemistry_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0435/4598/5192/files/fozelalevebesub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/6443515091.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/ags_101_screen.pdf
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/fosuzato.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/96811715483.pdf
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/21129949145.pdf
    • https://cdn.shopify.com/s/files/1/0437/6998/7223/files/84000071992.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/3314097168.pdf
    • https://cdn.shopify.com/s/files/1/0434/0809/7445/files/24175140840.pdf
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/87930769908.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dbf.bin
03e78b341dfe6ebff70bcb063a1713051d2a64b409a9f3ac9858edb54db4d91f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBF 5296 bytes
font_01_sfnt_off00006fe1.bin
950734c00b7b84c5e909f2b48d491b2715074aa83776c391d8f1035be1abaecb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE1 14600 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.