Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fde492c33807071…

MALICIOUS

PDF

34.5 KB Created: 2020-08-23 23:50:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a48ea62afc11114dfdee7c745f185322 SHA-1: 120b4c1a8fac96e6c9543de1686fa963ccbf1337 SHA-256: 9fde492c3380707109ee120e78cbbeada5c49358264428f80fb28fe1f029ce0b
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though partially corrupted, suggests a lure related to 'motion forces and energy worksheet'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a malicious site for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=motion+forces+and+energy+worksheet
    • http://files.samuelcjohnsonartist.co.uk/uploads/1/3/0/8/130813827/374c889e6d08a.pdf
    • http://sarebe.meghantomasi.com/uploads/1/3/1/4/131437436/f99f6b.pdf
    • http://files.mariopenalver.org/uploads/1/3/0/7/130776483/baginovikel_jubupanafi.pdf
    • http://files.electricianlivingston.org/uploads/1/3/0/7/130775968/jorixoxipejowefapi.pdf
    • http://files.gcctraining.net/uploads/1/3/2/6/132682564/tufoju.pdf
    • https://cdn.shopify.com/s/files/1/0437/5104/7329/files/15360021397.pdf
    • https://cdn.shopify.com/s/files/1/0430/5662/7866/files/10642124676.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/lemuduxidoseze.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3639/files/59779889904.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/maytag_bravos_washer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/4726/3128/files/55793282868.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1404/files/legrand_cable_management_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0432/5372/7387/files/gegefuvajudajom.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/42656556866.pdf
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/dagon.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/accelerated_c_github.pdf
    • https://cdn.shopify.com/s/files/1/0462/8506/2304/files/mewazusewupidadonapevem.pdf
    • https://cdn.shopify.com/s/files/1/0436/0791/6707/files/xibuxarigefogex.pdf
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/butobotopofolike.pdf
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/bass_guitar_primer_book_for_beginners.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/
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/bass_guitar_primer_bo

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a5c.bin
136c5c6b9b2187cb5300e3faa113c60cd5e8aadf180e7eff7c2b3849a105940c
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5C 5512 bytes
font_01_sfnt_off00005d2b.bin
9983382f6e37ef9e29cc8be88722f2a169509357e2fde8087ab73170f14ae2e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2B 9308 bytes