Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b2814703a81d7f…

MALICIOUS

PDF

41.3 KB Created: 2020-08-01 04:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29430326d8da86bdeaf21f7cfb3dea06 SHA-1: 7445734d9330a314cceccb297d5aca0809b95abf SHA-256: c2b2814703a81d7f30588d5cb7291ad0d4cb3ccb3fc3291f7264ae57abc27045
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=asce+7-+10+pdf+download'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, a heuristic for a PDF link farm was triggered, suggesting a broad attempt to distribute malicious content. The presence of a visual download button lure further supports the social engineering aspect of this attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=asce+7-+10+pdf+download
    • http://files.deborahcostinenaturepuppets.com/uploads/1/3/0/9/130969356/a7175f6e63eee6.pdf
    • http://files.uhbauerwomensociety.com/uploads/1/3/1/4/131409463/8935704.pdf
    • http://files.thedailydelaney.com/uploads/1/3/0/7/130775607/1657418.pdf
    • http://files.quillylife.com/uploads/1/3/0/7/130776828/4704254.pdf
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/nugisefakagub.pdf
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/famivonupetiwobalubaxag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdf
    • https://cdn.shopify.com/s/files/1/0431/6872/7194/files/vufezelu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/79061286344.pdf
    • https://cdn.shopify.com/s/files/1/0438/9113/0536/files/32318518699.pdf
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/lizubipirijosakaxulokel.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/84259634702.pdf
    • https://cdn.shopify.com/s/files/1/0432/3655/6962/files/76484716384.pdf
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/5854421468.pdf
    • https://cdn.shopify.com/s/files/1/0431/5139/2922/files/tokojokinoxenigopeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5312/files/54935898904.pdf
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/46227840473.pdf
    • https://cdn.shopify.com/s/files/1/0434/5511/9512/files/fijafogufokapularatobamu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1537/1932/files/vegolijavivefozu.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_off00005769.bin
94803b5ad1975a4b98d02eff4dcd2af2470c30bd72caafb71961e1c3f564772a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5769 5100 bytes
font_01_sfnt_off000068e9.bin
f4e1aa4e13d8ded2e7bb5590cb48de99c4bceda35559b7ec6e22f85620d74019		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E9 9764 bytes
font_02_sfnt_off00008a52.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A52 4324 bytes

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