Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a556be23bb94564…

MALICIOUS

PDF

40.3 KB Created: 2020-07-27 17:19:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83567e3eaa271044172336f10ffebc9a SHA-1: 51e3c2f1a026975835f946c4bbc09ff1de2bba21 SHA-256: 7a556be23bb94564fb6e32af2b5e3c36533f313e0fdaaf4475b7b721440a9b95
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple links to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'diamond roasted almonds nutrition information', likely a pretext for phishing. The presence of numerous external PDF links, including one pointing to a potentially malicious host, indicates an attempt to distribute further malicious content or redirect users to phishing sites.

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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=diamond+roasted+almonds+nutrition+information In PDF document text
    • http://files.rachelsword.com/uploads/1/3/0/8/130814935/jivuleru-xifitisusisit-nobajaxaluzoke.pdfIn PDF document text
    • http://files.talgolani.com/uploads/1/3/0/7/130739022/lipenovizilosuzufazo.pdfIn PDF document text
    • http://files.highyellowcurlz.com/uploads/1/3/2/7/132741764/zafugodorep.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/1/0433/0268/2789/files/7537853914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0490/2045/files/seledezupin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3747/2421/files/67724688691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/20307592736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2155/6117/files/tavatixonuzu.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/9178985322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/79299194443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/6227431624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2828/1506/files/88793239457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4411/8423/files/29859030538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9452/2518/files/dodikexotopanap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6068 4936 bytes
SHA-256: af8c30d56d49a55fe4da6e05d575bad26f7a5bdfd60fe7ec5d92e48b5547b30b
font_01_sfnt_off0000710f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710F 9708 bytes
SHA-256: aaedc9800d66652ff9317d0a6cee792c9dea95a6ac526676346d640b535c456b