Malicious PDF — malware analysis report

Static analysis result for SHA-256 749c9c555e51bb2d…

MALICIOUS

PDF

64.9 KB Created: 2020-08-25 04:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90d59c22b4804d58381c68db58b2c257 SHA-1: 8c26d0fe4c4dc09d55e5f78f90adcd800a205b94 SHA-256: 749c9c555e51bb2db5520243d8d0b1b93fcdeb137ec61a96f183e1f4046558fc
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=acuerdos+de+bucareli+pdf', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=acuerdos+de+bucareli+pdf
    • http://files.korinnew.com/uploads/1/3/1/6/131606666/vavusirito_golodijenepif.pdf
    • http://files.shieldedhearts.org/uploads/1/3/0/7/130738771/61405fe079.pdf
    • http://wemanobew.upstagenydanceacademy.com/uploads/1/3/0/9/130969525/lapubodujexu-pejitug-vanutizoju.pdf
    • http://wunilis.pchschoirs.com/uploads/1/3/1/1/131164250/nosijezididur_dafofeb_tizogi_gixesutepudado.pdf
    • http://files.caymanmathteacher.com/uploads/1/3/0/7/130775653/3fc52d6a7a96.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5110/files/19432235652.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/kiwivuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1101/files/bolt_dog_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/lowes_rochester_hills_mi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6209/9097/files/metformin_pregnancy_category_mims.pdf
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/zipigikajonu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3840/7845/files/zolimufemaxanivuxuku.pdf
    • https://cdn.shopify.com/s/files/1/0438/6314/6656/files/anencefalia_diagnostico.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/befoboniw.pdf
    • https://cdn.shopify.com/s/files/1/0462/2663/6954/files/94818188448.pdf
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/tixeveguxikemoralejusofew.pdf
    • https://cdn.shopify.com/s/files/1/0434/0629/5201/files/70003974611.pdf
    • https://cdn.shopify.com/s/files/1/0432/0496/8603/files/choodiyan_new_full_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/disaster_survival_guide.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_off0000a87a.bin
1e1ac46cbe1494abbc1cb3ae82d57f0a3b0a99a6f96acb48f300f95f06aa8144
pdf-font-stream PDF embedded font (sfnt) at offset 0xA87A 5276 bytes
font_01_sfnt_off0000ba6e.bin
36c0775dbe26e54e277cdbbc328c8b363bc6c1240e35554ba84d7ac3221e95c0
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA6E 11268 bytes
font_02_sfnt_off0000df4f.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4F 16204 bytes