Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba486bc000d3971…

MALICIOUS

PDF

44.6 KB Created: 2020-08-08 11:53:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3ec30d6699525eeadd6e565bccab71 SHA-1: 950392f6bc85024439086da57c3eff46832cdeab SHA-256: 2ba486bc000d397148f105f455698eed9d30b0fb23b1d5a26c37860c74eb1a5e
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector at ttraff.ru. This suggests the document is designed to lead users to malicious content through a series of redirects, likely for phishing or malware distribution. No scripts were extracted from this sample.

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=things+i+wish+i+knew+before+we+got+married+pdf
    • http://files.texashollandlops.com/uploads/1/3/1/3/131379371/7953459.pdf
    • http://files.jeidanielbiotech.com/uploads/1/3/0/7/130775859/395a43028f7.pdf
    • http://sopasiger.apollotyresmanchester.co.uk/uploads/1/3/1/3/131398455/jurem.pdf
    • http://files.crookstonhouse.com/uploads/1/3/1/0/131070207/mirok.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/9922200253.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73875000904.pdf
    • https://cdn.shopify.com/s/files/1/0434/0246/1351/files/how_to_redeem_a_steam_code.pdf
    • https://cdn.shopify.com/s/files/1/0430/4843/5861/files/63002932042.pdf
    • https://cdn.shopify.com/s/files/1/0436/7846/6201/files/6509944884.pdf
    • https://cdn.shopify.com/s/files/1/0438/3123/0614/files/ibanez_serial_number.pdf
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/usb_missile_launcher_software.pdf
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/hopelessness_theory_of_depression.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1935/files/buwipigazabasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/bescherelle_l_essentiel_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/semi_modal_auxiliary_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0437/2378/4360/files/partnership_deed_format_in_word.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_off00006eba.bin
c831cf6daf29721d7bce0497be425938b1628112564d17491c1bd0e5b9d8ddcc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBA 5668 bytes
font_01_sfnt_off000081e8.bin
51314333e8975dd06ba69ad6974f5af38ac964feaf16072c45d6ae8fac35e1dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81E8 10352 bytes

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