Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6242e0f8a93a3c8…

MALICIOUS

PDF

62.3 KB Created: 2020-08-14 04:50:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68843abfa32db2976e1839f7b3499a1a SHA-1: e71834b397f9bc7fb86fccb869935759a8f4765b SHA-256: a6242e0f8a93a3c81185f636620f664d6c7892345d50d4376def55ef62bdcfae
214 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a lure for downloading Android APKs. Additionally, the document exhibits characteristics of a callback phishing or tech-support scam by implying a need to contact a number for billing or security reasons. The presence of numerous embedded links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate destination and potentially evade detection.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.com/pify?keyword=telecharger+android+apk In PDF document text
    • http://files.inyourpacefitness.com/uploads/1/3/1/4/131483019/juzud.pdfIn PDF document text
    • http://nakewaf.rahbuilding.co.uk/uploads/1/3/0/7/130740178/wavadigo.pdfIn PDF document text
    • http://garup.marion-dewar.com/uploads/1/3/0/8/130874359/rajalofazonob.pdfIn PDF document text
    • http://files.yestocake.com/uploads/1/3/0/8/130814052/10e86bba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9147/7159/files/kibitejerubewoduse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0235/6127/files/nitokaporaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2814/2485/files/takefavanakogodibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/mitirojasotodafifusinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5699/5233/files/samagesawawamepew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0864/5541/files/zoviriwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8386/6007/files/titalubur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6338/6016/files/43891972122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/tagutifore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/54797622495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/61326033274.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6D 3164 bytes
SHA-256: 8bdbd262a3b9729bfcb7241fdc4f832e4869f4dcf84e00a0e9f7c146f91922d8
font_01_sfnt_off000076be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BE 5168 bytes
SHA-256: c0c13580eb1d3bc7c1832ae2428d6d524041eab98c9c700afab0550b25c589e0
font_02_sfnt_off0000883c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883C 5056 bytes
SHA-256: 49ed32338e48d35a2b788bc899ea652da9951fb075809d33baa196259cf172f7
font_03_sfnt_off00009b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B13 16124 bytes
SHA-256: 2a411feb3b30567e849db62fc1ab10528a1d0fc34bbd816bf0b046e265ec01c9
font_04_sfnt_off0000cca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA9 19944 bytes
SHA-256: 5542b618d7bf1c3a5cb128561cfc7554dad264a6b695d09dbf1ceae955c77513

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