Malicious PDF — malware analysis report

Static analysis result for SHA-256 df29ac45ac437f21…

MALICIOUS

PDF

34.5 KB Created: 2020-08-10 21:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b88093e71b22d0ac890f8ed0b77c35b SHA-1: 4ad12a5c186402d49c348038911f59b4aa4954ef SHA-256: df29ac45ac437f21e730f19604bd6a6e4a28785e270fc6ef356347fe0ac3c6f8
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, specifically 'https://ttraff.ru/pify?keyword=download+file+yasin+dan+tahlil+pdf'. This link is presented within the document body, suggesting a social engineering attempt to trick the user into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious URL is the most critical IOC.

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=download+file+yasin+dan+tahlil+pdf
    • http://files.vdmusic.net/uploads/1/3/2/6/132695830/kedinilixi.pdf
    • http://wanazup.artofeliamariamc.com/uploads/1/3/1/3/131398020/832562.pdf
    • http://files.normawalton.ca/uploads/1/3/0/9/130969987/3292307.pdf
    • http://files.cromartyrowing.com/uploads/1/3/1/0/131070500/poratesir.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/21406983038.pdf
    • https://cdn.shopify.com/s/files/1/0429/3971/1644/files/54241638785.pdf
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/fafozupekevuvijasaditos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93434530871.pdf
    • https://cdn.shopify.com/s/files/1/0437/7346/0631/files/suprema_biostar_2_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8312/7191/files/kenny_werner_effortless_mastery.pdf
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/mudujovobedebidib.pdf
    • https://cdn.shopify.com/s/files/1/0432/5815/1070/files/nk_giri_automobile_mechanics_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3908/files/tosovunibirubu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8140/8420/files/8429561161.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/roxuwubir.pdf
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/elmo_s_world_fish.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/21078354643.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_off00004a38.bin
e16f515025ca62eb5c036272f6a9c806711ce97661420d88d4b035ccf679d341		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A38 5224 bytes
font_01_sfnt_off00005c1f.bin
329ea814db8b19f6bba6120743b4d744c70c6bf5ff877532c3ac3bebec77fa50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1F 9680 bytes

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