Malicious PDF — malware analysis report

Static analysis result for SHA-256 30193e23501a2b62…

MALICIOUS

PDF

59.6 KB Created: 2020-08-08 14:31:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93ac8c1990f91e72b8d64ccac8402c54 SHA-1: 1e65c8ed898bfb3dd3c111ab817ae4d63d552615 SHA-256: 30193e23501a2b6251b0287a59f06982238b8558988ff898399cb1061fd36cbf
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector, specifically 'https://ttraff.com/pify?keyword=2020+ap+literature+multiple+choice+pdf'. This indicates a phishing or social engineering attempt to direct the user to malicious content. The file also exhibits characteristics of a link farm, with numerous external links, suggesting an attempt to manipulate search engine results or distribute traffic to various sites. No scripts were extracted, limiting the analysis of direct payload execution.

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=2020+ap+literature+multiple+choice+pdf
    • http://files.drdefinis.com/uploads/1/3/1/4/131436981/5890803.pdf
    • http://files.mcdermottministries.org/uploads/1/3/0/9/130969989/fineb.pdf
    • http://files.principaldonacarney.com/uploads/1/3/0/9/130969671/kisibaxazevezamisom.pdf
    • http://files.euphonymagazine.org/uploads/1/3/0/7/130775186/8678787.pdf
    • http://files.islandresearchph.com/uploads/1/3/2/7/132741029/likepuri-jevazefazitokur-kuboparij.pdf
    • https://cdn.shopify.com/s/files/1/0431/4382/3511/files/zokamegumigoxam.pdf
    • https://cdn.shopify.com/s/files/1/0432/8783/8886/files/voviwizugafatata.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdf
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/fanegu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1518/files/9449704064.pdf
    • https://cdn.shopify.com/s/files/1/0438/2746/2301/files/babokafidoxitejonul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofusibosaduxigagixuvoma.pdf
    • https://cdn.shopify.com/s/files/1/0433/0674/6011/files/ap_grama_sachivalayam_books_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/8507/7405/files/xizukak.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/alaptrvny_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/kopanepuwufefodelodijakow.pdf
    • https://cdn.shopify.com/s/files/1/0438/2484/0861/files/243235559.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa78.bin
8455a1251cbc414fdc4a02a693d549867acb6812b86e00520f870dcb124db37f
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA78 5396 bytes
font_01_sfnt_off0000bca1.bin
f7aecfb73a22a963ff7f931283bea9a27609c16f17c91921fa914952bfb70c63
pdf-font-stream PDF embedded font (sfnt) at offset 0xBCA1 10636 bytes