Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be136fbb9016c1b…

MALICIOUS

PDF

61.4 KB Created: 2020-08-10 08:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ce4c825581177e2be275a99819010e8 SHA-1: 645b656c5209c3281ab2ff8a4487cd2a3b0daa90 SHA-256: 7be136fbb9016c1ba50fea20c9a09100e392607c29427c05fa5f8f0a39704ac6
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though partially corrupted, includes the text 'Breeds of sheep and their characteristics pdf' and the malicious URL, suggesting a lure to disguise the malicious redirection. The PDF also contains a large number of external links, many pointing to Shopify domains, which is indicative of a link farm used for SEO poisoning or to obscure malicious destinations.

Heuristics 3

  • 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.
  • 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=breeds+of+sheep+and+their+characteristics+pdf
    • http://files.mariocostantinopace.com/uploads/1/3/1/0/131070500/358a1d35.pdf
    • http://files.afrogood.com/uploads/1/3/1/4/131438280/675494.pdf
    • http://files.highstreetmediaproductions.org/uploads/1/3/0/8/130814258/lemixilarif-tusinig.pdf
    • http://getez.rockapplications.com/uploads/1/3/0/8/130814328/b14af64da39b835.pdf
    • https://cdn.shopify.com/s/files/1/0444/1961/2839/files/piwapovurafevudaxufos.pdf
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/patofisiologi_bronkitis_akut.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/97106923066.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/meruwesuwada.pdf
    • https://cdn.shopify.com/s/files/1/0435/7583/6835/files/introduction_to_structural_dynamics_and_aeroelasticity_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6635/2028/files/65355855648.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/binebiwefuwud.pdf
    • https://cdn.shopify.com/s/files/1/0435/6859/5112/files/86268977560.pdf
    • https://cdn.shopify.com/s/files/1/0438/0911/2226/files/read_catching_fire_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/6871/0300/files/speech_bubble_generator.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/dufezomune.pdf
    • https://cdn.shopify.com/s/files/1/0437/8741/9806/files/lizaxorasazarujisijufonas.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6b4.bin
3cbdfe30f7b3d4c7934fd7bdf9c376e8468102eab01fc148bd16a18510d5c3b6
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6B4 5048 bytes
font_01_sfnt_off0000b7d2.bin
b066d39ac9fec8b4aad9368ad9c4f0ebd4a3a8299e8068514258930e03e703da
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D2 10108 bytes
font_02_sfnt_off0000da62.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xDA62 4324 bytes