Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f22f690fabd57fb…

MALICIOUS

PDF

44.2 KB Created: 2020-08-03 07:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d819c204b8c22030b26b5ce1dca0002f SHA-1: ad07c3a10315d52fc5b3dfd336d439efdd7b539e SHA-256: 6f22f690fabd57fb6d2d76d3a51d689fae78943696344e2777d6c42b5370eba5
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, https://ttraff.com/pify?keyword=what+does+albatraoz+mean, is identified as a malicious redirector. This suggests the document is designed to lure users into clicking through a series of links, potentially leading to malicious content or further compromise. No scripts were extracted, and the document body is heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=what+does+albatraoz+mean
    • http://files.lighthousecamps.com/uploads/1/3/1/0/131070911/b310cb3ec4b.pdf
    • http://files.demo.famhealth.com/uploads/1/3/0/9/130969129/zovojanunexi_sasobakekedexob_rutesedod.pdf
    • http://files.lvmphotoshuntingtonwv.com/uploads/1/3/0/8/130814397/zorenimixogasupifaxa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/52633139001.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/63491738983.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdf
    • https://cdn.shopify.com/s/files/1/0428/4373/4182/files/palig.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/introduction_to_computer_security_matt_bishop.pdf
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/kogajivamuzomiduzekabozo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/rewigatunixokeb.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/xolonipexun.pdf
    • https://cdn.shopify.com/s/files/1/0433/8027/7406/files/45527364074.pdf
    • https://cdn.shopify.com/s/files/1/0430/8910/0951/files/13550511094.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boruxunijutaki.pdf
    • https://cdn.shopify.com/s/files/1/0433/1362/7294/files/xupegoluwigozogejefugaloj.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061a5.bin
b577f84587211f3e50735b601b33b7b66bae4f6ddbc1287b294e8a1bd366d0e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x61A5 5008 bytes
font_01_sfnt_off00007293.bin
970e6b2c4774e7f1c457e056121fd972ac2a47f8a3cad2eb714f591a14195cc7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7293 10412 bytes
font_02_sfnt_off0000961c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x961C 4324 bytes