Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3dd65caa09e33ff…

MALICIOUS

PDF

42.7 KB Created: 2020-08-22 14:14:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 408555f1ca626f0b0b938a1b7fa3a928 SHA-1: 124c7de17efa84053fcb231dae0ef61785c5b687 SHA-256: b3dd65caa09e33ffe224102347334c92203d3c8ebfa2cb0433172b8acfe04798
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=arti+lirik+answer+love+myself'. This URL is presented within the document body, suggesting a social engineering lure. The file also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm or SEO poisoning technique. The primary intent appears to be redirecting the user to malicious infrastructure.

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.cc/pify?keyword=arti+lirik+answer+love+myself
    • http://files.onspotexam.com/uploads/1/3/1/4/131437766/985493.pdf
    • http://files.karenhk.com/uploads/1/3/2/6/132680955/dodemebazefukuwewel.pdf
    • http://files.banksfamily2017.com/uploads/1/3/1/8/131871648/4850eb44d.pdf
    • http://vawotudip.cateyosborne.com/uploads/1/3/1/3/131397970/liremolegavorafagok.pdf
    • http://mixipur.heatherrandall.com/uploads/1/3/2/6/132681337/2803ebd.pdf
    • https://cdn.shopify.com/s/files/1/0427/8901/1612/files/sutagugululomiruluro.pdf
    • https://cdn.shopify.com/s/files/1/0432/0804/8808/files/96279903805.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/50354794552.pdf
    • https://cdn.shopify.com/s/files/1/0437/5733/8776/files/62076960317.pdf
    • https://cdn.shopify.com/s/files/1/0460/9723/6132/files/license_template_microsoft_word.pdf
    • https://cdn.shopify.com/s/files/1/0436/3960/3360/files/lafafatejazerofimuwiruwej.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/tajegodige.pdf
    • https://cdn.shopify.com/s/files/1/0447/0145/0396/files/gekosedenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6831/6055/files/52975518422.pdf
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/multi_attribute_utility_theory.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/5620577094.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/13933636017.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/zufusovikewusemamus.pdf
    • https://cdn.shopify.com/s/files/1/0432/0349/4043/files/android_os_for_pc_amd.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_off000069dc.bin
b51c74f977d36994df518ccf187b63cc7b9a1ba7764e4c9056a44492852523ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x69DC 5220 bytes
font_01_sfnt_off00007b9f.bin
3018024fe7fbc686af5543190402a6491d0291b8335356913f09733064881ff5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9F 10012 bytes