Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a4c16d7baad69a…

MALICIOUS

PDF

110.4 KB Created: 2020-05-03 16:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bd84952f19b04dc4d30ace69f74f78d3 SHA-1: 8ad0e1c8b2c1ac43ecb49d359e856bb2881c5623 SHA-256: 74a4c16d7baad69a029bc7d6be83cc9b6dd6023e58bd9b65a737550e5e63e0ac
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document exhibits malicious behavior by requesting sensitive recovery information, a tactic commonly used for credential harvesting or account takeover. The presence of numerous external links, including one pointing to a potential second-stage payload, suggests an attempt to redirect the user to malicious websites. The ML classifier strongly indicates malicious intent, and the document's structure and content align with phishing or social engineering attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://gotvapestache.com/uploads/1/3/0/7/130740563/130740563.html#bombsquad+for+android+jelly+bean
    • http://grin.coffee/uploads/1/3/0/6/130639148/xupulubifo-wilolumesemav-bodalovupe-zamizofuvutas.pdf
    • http://manyaralakeview.com/uploads/1/3/0/4/130435835/8121196.pdf
    • http://spirithorsecreations.com/uploads/1/3/1/3/131384436/dovonosiwazi.pdf
    • http://emilymuirmain.com/uploads/1/3/0/6/130605517/sotaferiziranopi.pdf
    • http://leanslowmotionpotion.com/uploads/1/3/0/3/130313729/fuxazag-revito-dozapobumomotu.pdf
    • http://rockyourawesome.com/uploads/1/3/0/8/130813988/35e5bf615.pdf
    • http://nadeko.org/uploads/1/3/0/7/130775540/3708483.pdf
    • http://psychcarecommunitycenterllc.com/uploads/1/3/1/8/131860125/dojumewe.pdf
    • http://camgardeners.com/uploads/1/3/0/4/130476423/vujurapew_selebe.pdf
    • http://zsegre.com/uploads/1/3/0/5/130539042/vujumusa.pdf
    • http://pyramidandcentury.com/uploads/1/3/0/6/130620633/2453901297b656c.pdf
    • http://dsdsd.org/uploads/1/3/0/2/130272880/6898341.pdf
    • http://blackmetalsupply.com/uploads/1/3/0/8/130814177/e0d8882ec09982f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017467.bin
e459b14d4b774e5fe709891dea4aa7baa57e777ba2f63c4ae7d2b091690c56a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17467 4888 bytes
font_01_sfnt_off000185b7.bin
28588c1fbab8dfd27291c7bcac358d1711722274eae13b30c30e81e5ed6f890d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x185B7 11508 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.