Malicious PDF — malware analysis report

Static analysis result for SHA-256 07a1fbfc8212296e…

MALICIOUS

PDF

43.1 KB Created: 2020-08-21 05:55:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c17f7657adb89650dac80eb7a31401f8 SHA-1: 94c7b06573161c3cee88ad3f5b5fd44f39d0aa65 SHA-256: 07a1fbfc8212296e2247d6b5eb5820c6332a78f9b28e31cc6b6310724972ab12
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one that redirects to known malicious infrastructure via 'ttraff.cc'. The document body and heuristics indicate a lure related to 'acting lessons apk', likely a phishing attempt to redirect users to a malicious download or exploit. The presence of a large number of external PDF links suggests a link farm designed to obscure the malicious destination.

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.
  • 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.cc/pify?keyword=acting+lessons+apk In PDF document text
    • http://dukinifa.grissomchoir.com/uploads/1/3/0/7/130776257/4747669.pdfIn PDF document text
    • http://files.reddoorgallerywahpeton.com/uploads/1/3/2/3/132303261/xukepunej-fufixin-rujavatem-rotekerav.pdfIn PDF document text
    • http://files.symmetry-careers.com/uploads/1/3/0/7/130740429/1f2a0.pdfIn PDF document text
    • http://files.trinibnb.com/uploads/1/3/1/3/131380052/1907250.pdfIn PDF document text
    • http://files.utahvalleymagicacademy.com/uploads/1/3/1/0/131070604/159573.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/1/0428/4183/3635/files/xuforegiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/xekizarekuwaviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2530/9604/files/43195254941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/hyvee_catering_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9649/6544/files/jiviforemojuwedib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/risuwawawokupasadoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6066/files/gesufugowapusitasoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/mobezemiwutugapojoragi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3788/8410/files/gloomhaven_kickstarter_campaign.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/6085015773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4294/7750/files/51093504659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/worebiwirorof.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB6 4544 bytes
SHA-256: 53bb5295a65cf2d8b4fe18f730ce1ce845777c906c0ce9e6b664850650dc281b
font_01_sfnt_off00006bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB2 5056 bytes
SHA-256: 99d2ac6f759290a92a41c3cbc4b0ba0a0cab7fc12012b7d298d914155f96d404
font_02_sfnt_off00007cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFD 10200 bytes
SHA-256: d36f099d34e6727cc4bcaf0c387f5482d1b48f364363950a88a2987225fce6c0

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