Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e1a3a1fa6129fe…

MALICIOUS

PDF

49.9 KB Created: 2020-08-14 12:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82233a21426ed098f91fc6317263f80a SHA-1: 54e23690a998e456a0c30e82e70ca415cdc7ce99 SHA-256: 07e1a3a1fa6129feaccd75985399fd1bf69ce1250fbe8bcf972add30caa1ad4c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, with a critical heuristic identifying it as a redirector link to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to a malicious site. The presence of a large number of external PDF links further indicates a link farm, likely for SEO manipulation or distributing further malicious 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=wow+sinestra+solo+guide
    • http://saduv.temeculatowcompany.com/uploads/1/3/0/7/130776208/degumeza.pdf
    • http://files.nomadicartist.org/uploads/1/3/0/7/130739684/a626a0feaa03f0.pdf
    • http://diduke.gerardtalavera.com/uploads/1/3/2/7/132712323/424c53dc.pdf
    • http://files.wildthymecatering.co.uk/uploads/1/3/1/0/131070842/gixizogalaxobi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/3165/7638/files/remidudujaziru.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/ferugakavenuveletex.pdf
    • https://cdn.shopify.com/s/files/1/0435/0204/3288/files/catena_aurea.pdf
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/99407436748.pdf
    • https://cdn.shopify.com/s/files/1/0434/2494/0184/files/28987318041.pdf
    • https://cdn.shopify.com/s/files/1/0430/6750/6849/files/kopekivogedajute.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/34542383097.pdf
    • https://cdn.shopify.com/s/files/1/0433/3607/3366/files/wedumefiguluvatujifumiwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/9774/2750/files/mefizejifuzabunagetuzuvow.pdf
    • https://cdn.shopify.com/s/files/1/0432/9511/3374/files/53832875391.pdf
    • https://cdn.shopify.com/s/files/1/0435/2363/7399/files/44625848843.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/33694300628.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/significance_shelly_crane.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/68519339820.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085ee.bin
e1a3360d2b845f16c96edcb857085cf399baf42046855b413216202b1c0d0fd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85EE 5096 bytes
font_01_sfnt_off00009761.bin
e1a3ce75f69097f13851602b80453ba80ad39594e6b1a9d7047797e6cab2b540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9761 10316 bytes

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