Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e02a35f88f0552…

MALICIOUS

PDF

38.1 KB Created: 2020-05-22 10:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ff0cb6de422acefb326a885aa005c58 SHA-1: b56568fe1ca9845186331394ff7ecc6754184c2e SHA-256: 36e02a35f88f0552f19b79460013043ebe51e7ce1200b860b3bf3d1d9a643740
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document is designed to appear as an 'Affidavit of support sample letter for spouse' to deceive the user. It contains a large number of embedded external links, indicating a link farm or redirection strategy. No scripts were extracted from this sample, limiting the analysis of direct malicious actions beyond the redirection. The primary attack vector appears to be social engineering through a deceptive document title and a high volume of external links.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://adsl-63-204-18-39.benefitplans.org/uploads/1/3/1/4/131483266/131483266.html#affidavit+of+support+sample+letter+for+spouse
    • http://asyouwishnw.com/uploads/1/3/1/6/131637780/0a349.pdf
    • http://alicelovesharps.com/uploads/1/3/0/4/130436089/bukalakusal_rujisaxekemus_siruridikova.pdf
    • http://damiautopflege.ch/uploads/1/3/0/6/130621576/fc680c3abab924.pdf
    • http://localretailmgt.com/uploads/1/3/0/7/130739049/4caa8b960c38.pdf
    • http://thesoonernetwork.com/uploads/1/3/0/5/130590474/08c9478d3a49417.pdf
    • http://trevoroc.com/uploads/1/3/1/4/131438747/gebonetemofuga.pdf
    • http://geointerio.com/uploads/1/3/1/4/131453934/koguz_rumeko.pdf
    • http://mowriteindustrial.com/uploads/1/3/0/6/130621342/kijiladuvip.pdf
    • http://gladysnails.com/uploads/1/3/0/5/130550813/65d47.pdf
    • http://nativebendbuilders.com/uploads/1/3/1/8/131871395/tukavufavixotexafub.pdf
    • http://460medical.net/uploads/1/3/0/8/130813372/jerizi.pdf
    • http://goodysplumbing.com/uploads/1/3/0/7/130738620/65625e9cdb.pdf
    • http://thaimassage07.com/uploads/1/3/0/5/130590777/xovadus.pdf
    • http://okomesushibento.com/uploads/1/3/0/6/130640029/3555188.pdf
    • http://cbphotography18.com/uploads/1/3/0/5/130590666/vobibutuneliw_kagojavenu_wotepoj_patulorujobe.pdf
    • http://eccentricsoundz.com/uploads/1/3/0/7/130739926/6302129.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a46.bin
ee167ff8bf9714037e1a8fa162207f908804a454e2744898e764f88624e05b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A46 10076 bytes

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