Malicious PDF — malware analysis report

Static analysis result for SHA-256 019bc78d617a3324…

MALICIOUS

PDF

57.0 KB Created: 2020-08-20 10:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0708660f0e134a9e86f3e9b53af4f6cb SHA-1: 101f5b5a98646b89ada636afc363d2b89ade5fd3 SHA-256: 019bc78d617a3324a89f521cb9d75b7e6abd9da18b5c5254af9590a77e0b4304
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure related to movie songs, suggesting a phishing or malware distribution attempt. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent.

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.ru/pify?keyword=bharat+movie+songs++songspk
    • http://files.reneeleaberger.com/uploads/1/3/0/8/130873943/5979147.pdf
    • http://files.jonmorris.net/uploads/1/3/1/3/131398085/jalokesavituru_diwedum_lamaxumipa.pdf
    • http://files.nycea.org/uploads/1/3/2/6/132682528/9277980.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/pitopijalofokomavedalow.pdf
    • https://cdn.shopify.com/s/files/1/0440/1112/6942/files/86217865658.pdf
    • https://cdn.shopify.com/s/files/1/0433/5665/1669/files/panasonic_ag_ux180.pdf
    • https://cdn.shopify.com/s/files/1/0432/8515/1897/files/17702118634.pdf
    • https://cdn.shopify.com/s/files/1/0440/6332/6358/files/18203634944.pdf
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/womukoro.pdf
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/77087920056.pdf
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/zirunaborozok.pdf
    • https://cdn.shopify.com/s/files/1/0433/5376/8095/files/60028854123.pdf
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/kowanep.pdf
    • https://cdn.shopify.com/s/files/1/0440/4363/2805/files/cm_list_of_gujarat.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6312/files/tasaxiromakumi.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_off00007fce.bin
0f4660a4c444f2ec0b636acccb1a5e43225b9bc1a1d7c8fccb48f9908b2da270		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCE 5372 bytes
font_01_sfnt_off000091fc.bin
a59220188c9abea6ae3a19cc4dea06244f75054541a856b97fc611b18c6686b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91FC 14512 bytes
font_02_sfnt_off0000bf65.bin
96f893d9df23f797a09309af12a289cf705648209a0055d591f3eec5b81a9eca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBF65 6876 bytes

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