Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d4a06d0007c26ed…

MALICIOUS

PDF

45.9 KB Created: 2020-08-02 12:26:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70704f9e4f378290afe2b942a683230e SHA-1: a6a3ecb746c073db7fd052f65776ee3d10a3e0d5 SHA-256: 5d4a06d0007c26edc69b84e3298246f5c49972c2568bd45b5a9c12f6044b32fd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One of the primary links directs to a known malicious redirector infrastructure at 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=converting+to+vertex+form
    • http://files.colourismyworld.com/uploads/1/3/2/7/132710697/xazofuzales.pdf
    • http://files.maryscreativespot.com/uploads/1/3/1/4/131407111/23aa5d8de7b6.pdf
    • http://files.dianabradfordart.com/uploads/1/3/0/7/130775934/1304724.pdf
    • http://files.gregmoffattknives.com/uploads/1/3/2/6/132696112/lujubibuwi.pdf
    • http://files.familycraftsandcreations.com/uploads/1/3/0/7/130775942/1377319.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/star_wars_the_force_unleashed_2_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/49597463334.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/17688377105.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5293/files/41280652249.pdf
    • https://cdn.shopify.com/s/files/1/0432/3488/5792/files/80229684025.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/fonusowababufusebuke.pdf
    • https://cdn.shopify.com/s/files/1/0435/3500/7893/files/dowidifusebejilepub.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/92361381102.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/fake_gps_location_spoofer_v4._6_apk.pdf
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/dubefuboworer.pdf
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/donosanuborunovijipurago.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/the_economist_january_12th_2020_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdf
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/todowapojosatokezom.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000639d.bin
437a7f06f442cc404eb175b28a85672fad7959d19860d560b4f52f3c2febd0fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x639D 4608 bytes
font_01_sfnt_off00007338.bin
f9f0176d93689ce21fc4599fe4ba56c1111e20cb082c3a2096a42c89fd3ef640		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7338 12816 bytes
font_02_sfnt_off00009c2d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2D 4324 bytes

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