Malicious PDF — malware analysis report

Static analysis result for SHA-256 62629f335ec040e1…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 18:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 157603a7f1cd00493a9a38325c22814e SHA-1: 8be85c4ab411dcf5f792959bb4987cc27facc5ad SHA-256: 62629f335ec040e129e5f3b8930f1ac031e8b99d0ed2e330dd0cf3c60f3d9679
182 Risk Score

Malware Insights

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

The PDF contains a lure for a proforma invoice and includes a mass of external links, with one identified as a malicious redirector. The document body, though obfuscated, contains text related to invoices and the malicious URL. The presence of numerous PDF links suggests an attempt to distribute malicious content or engage in SEO manipulation for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=proforma+invoice+template+pdf
    • http://nadefigik.jammiemelgar.com/uploads/1/3/0/7/130775350/ab8dba9f.pdf
    • http://bukesoj.timberkreekcarving.com/uploads/1/3/1/3/131380600/pijikixilire.pdf
    • http://files.anthonymichaelscatering.com/uploads/1/3/2/6/132695329/2282613.pdf
    • http://files.nightriserscon.com/uploads/1/3/1/3/131380466/0f3dc2b0566e5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/63008022917.pdf
    • https://cdn.shopify.com/s/files/1/0432/7361/7568/files/c_value_paradox_short_note.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/airtel_caller_tune_apps.pdf
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/73411344825.pdf
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/assassin_s_creed_black_flag_trainer.pdf
    • https://cdn.shopify.com/s/files/1/0451/2625/4745/files/advertisement_rubric.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8770/files/pawumenib.pdf
    • https://cdn.shopify.com/s/files/1/0436/9884/7896/files/splatoon_2_ranks.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/rumupiror.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_off00006951.bin
4a53cda690c2dc734ea3469f1c081ccbd75e9c85a32637525344fee5b3631e81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6951 5184 bytes
font_01_sfnt_off00007ad7.bin
9e41bf79360a1e3801ae37301695b5ab9e993c15f989c02d87d20487f1404914		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD7 10332 bytes

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