Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb462c479e75e429…

MALICIOUS

PDF

50.6 KB Created: 2020-08-20 11:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f33c2f153bc5604606b6137471463e7a SHA-1: 1f9533b309a06c91d930dc64c134a791c44a5f6b SHA-256: fb462c479e75e429c50e80715b2a4b0b20385eb9fbcd4ee01f8cc44674b98af3
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link and a large number of external links, suggesting a link farm or phishing attempt. The document body mentions 'mcc college application form 2019' and includes a URL that redirects to 'ttraff.ru', a known malicious redirector. The presence of a callback phishing lure further supports the malicious intent. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=mcc+college+application+form+2019
    • http://files.llabands.com/uploads/1/3/1/3/131384136/4816932.pdf
    • http://files.kalaharihuntingsafaris.net/uploads/1/3/0/7/130776619/puwilupaf.pdf
    • http://jamededut.sarahcbenjamin.com/uploads/1/3/2/6/132680848/minijezokapulixu.pdf
    • http://files.dentalsleepbasics.com/uploads/1/3/1/4/131408572/c1868873a1af.pdf
    • http://files.eddiebyun.com/uploads/1/3/2/8/132814337/147616.pdf
    • https://cdn.shopify.com/s/files/1/0464/0302/7099/files/personal_voicemail_greeting_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9443/files/cluster_headache_treatment_guideline.pdf
    • https://cdn.shopify.com/s/files/1/0461/8944/5283/files/facebook_ipo_roadshow_presentation.pdf
    • https://cdn.shopify.com/s/files/1/0439/1459/2408/files/vabezejovus.pdf
    • https://cdn.shopify.com/s/files/1/0433/8106/3838/files/navelozomiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/lomepifis.pdf
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/mcdonalds_coupons_may_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/fefijarotulilidux.pdf
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/doheny_state_park_surf_report.pdf
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/84194861596.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/amharic_alphabet_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0430/0757/4179/files/dimox.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/base64_image_to_java.pdf
    • https://cdn.shopify.com/s/files/1/0456/9143/7215/files/dls_2019_profile_dat_hack.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007913.bin
971d35514764ec603fd3c18952946c024853383e63987a20b7783f3533e3a79f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7913 5432 bytes
font_01_sfnt_off00008b79.bin
f1504448a00a2caa93b932e0e58b4edd809b0f4c55335946b88473bc45351805		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B79 10304 bytes
font_02_sfnt_off0000aebe.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEBE 4324 bytes

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