Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7d7ab0c1b22c588…

MALICIOUS

PDF

43.3 KB Created: 2020-08-11 18:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b9902a204c3f807c346ac200592c004 SHA-1: e3bf1913f41dbf4d4a1f3dff389b96f3bc558390 SHA-256: b7d7ab0c1b22c588bc34ce2676b8469ad5dd2ea419dcc3594a942325cd080540
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a search result for 'online haggadah pdf'. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify and other domains, likely for SEO manipulation or to distribute further malicious content. The primary malicious activity observed is the redirection to the ttraff.ru URL.

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.ru/pify?keyword=online+haggadah+pdf
    • http://files.falafelbite.com/uploads/1/3/1/4/131437736/gevujozisolevujage.pdf
    • http://files.handyvillage.com/uploads/1/3/0/7/130740502/pudilemugubop.pdf
    • http://pazuzewoz.parentsassociationofriley.com/uploads/1/3/1/4/131437595/1269733.pdf
    • http://files.windowsofhopeintl.org/uploads/1/3/0/9/130969761/1220709.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/95081883002.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdf
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/govisezijumupas.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/12207331560.pdf
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/35411106820.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/saberesenoxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/96445344662.pdf
    • https://cdn.shopify.com/s/files/1/0433/1493/8014/files/defined_and_undefined_terms_in_geometry.pdf
    • https://cdn.shopify.com/s/files/1/0431/2868/4701/files/pemorazitanimusaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/causes_of_world_war.pdf
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/57452132126.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_off00006b87.bin
0dc7496ef2d78c91976891b0ccb4be7a462c5612133be26ef95ba8e312071e4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B87 5056 bytes
font_01_sfnt_off00007cb8.bin
c68dfd8505909351b21a3f2584eb9e61b6f050e370a4fac0b7e1ddad01eab223		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB8 10552 bytes

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