Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd402f33b145399e…

MALICIOUS

PDF

65.8 KB Created: 2020-07-30 11:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84de5fe78aa0b962c0d7d2af21abdf71 SHA-1: 04aaa7bbd48a7caf21580b114b22296a4cff53d8 SHA-256: dd402f33b145399e3e68a5eb3897d278750f2eff997e32b452c21820cb395ff1
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, with one specifically identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, suggests a lure related to an 'Afghan calendar'. The presence of a link farm heuristic further indicates an attempt to distribute content or redirect users to malicious sites. No scripts were extracted from this sample.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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=afghan+calendar+1397+pdf In PDF document text
    • http://files.tjeffersoncarey.com/uploads/1/3/1/3/131380875/papedupoduwegamogona.pdfIn PDF document text
    • http://files.brewerparkcommunitygarden.com/uploads/1/3/2/6/132681992/bixovizuw.pdfIn PDF document text
    • http://files.serbianheritageacademyofcanada.ca/uploads/1/3/0/8/130813799/fad95386e28272.pdfIn PDF document text
    • http://files.plantopartyorlando.com/uploads/1/3/1/8/131856545/jofagewijasabi.pdfIn PDF document text
    • http://files.rathfrilandmotorclub.co.uk/uploads/1/3/2/3/132302913/zomawuzivoludi_petusol_mufawukemur_xitedelufukojob.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/1/0431/8907/6117/files/63514466738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/tewefopewitazegunozogipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6159/2742/files/38711403810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5656/9247/files/mosafezajekujomapiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/89473155213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/lixumuzawozobuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6559/6321/files/85253846694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/dorenifix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6735/7846/files/wilojovox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lapifobojupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7464/files/84036088335.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000cb31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xCB31 26404 bytes
SHA-256: 0705a25a2c482269d465d6795ac3ff71f127d679a3bb789e3fcc0feb84a5c329
font_00_sfnt_off00009119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9119 5232 bytes
SHA-256: b79195f64f9e562fba2a21ae24694f09676a4b7069c37ec6ab85523112a129ce
font_01_sfnt_off0000a2d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D9 12944 bytes
SHA-256: 131985c6883600a7e54325edf4a1f241b7ccbe41bf18f5723839f533d61d0ff3