Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd70de9833542132…

MALICIOUS

PDF

42.9 KB Created: 2020-08-21 14:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a1142ec8579e43ba4675a11f7c0da91 SHA-1: 61ddf36cc2505480b42922269ab9a8f70e9c0cee SHA-256: cd70de9833542132d998272cfb7e4bfc1ff226b877a2b6752bc5e32bc6bd9dbb
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains text related to 'free appvalley for iphone' and includes the malicious URL, reinforcing the lure. The presence of numerous external PDF links also suggests a link farm or SEO poisoning tactic to increase visibility.

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=free++appvalley+for+iphone
    • http://files.aqharegion2.com/uploads/1/3/0/7/130738565/rademakugojev.pdf
    • http://fobuw.compelation.co.uk/uploads/1/3/1/3/131383613/roduwolaxonana_perumexizegu.pdf
    • http://files.darrylstrange.org/uploads/1/3/1/6/131637362/simotewoziruf_durexiwajiboxe_wiwogapikegogi.pdf
    • http://files.scacsl.com/uploads/1/3/2/6/132681409/1a081ca1b.pdf
    • http://gedix.toledopresbyterian.com/uploads/1/3/1/4/131409236/7573600.pdf
    • https://cdn.shopify.com/s/files/1/0434/7622/2114/files/78195092719.pdf
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/96184809055.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5916/files/83425982759.pdf
    • https://cdn.shopify.com/s/files/1/0431/5915/8940/files/javafx_textfield_listener.pdf
    • https://cdn.shopify.com/s/files/1/0437/9348/1885/files/automotive_locksmith_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/6759/5165/files/street_fighter_alpha_3_android.pdf
    • https://cdn.shopify.com/s/files/1/0434/1746/9080/files/32858976259.pdf
    • https://cdn.shopify.com/s/files/1/0438/8572/3816/files/41269075238.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/telaje.pdf
    • https://cdn.shopify.com/s/files/1/0438/2231/7728/files/arrange_numbers_in_ascending_order_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0435/8062/0955/files/role_of_agriculture_in_economic_development_in_africa.pdf
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/vazuvotubikaparimufowapo.pdf
    • https://cdn.shopify.com/s/files/1/0440/3052/5590/files/visasowuzatixunozez.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/
    • https://cdn.shopify.com/s/files/1/0435/8062/0955/files/role_of_agriculture_in_economic_development_in_africa

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000695e.bin
7c099fc0e0e617a3a9b8ec82571a7e7e8d733f67818cb3ce87df0ecffd7cddd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x695E 4928 bytes
font_01_sfnt_off00007a2c.bin
fca4202e8606dadd8961a2dbd860aa77026741f73bc57495ae85f7b0e47cd834		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 10600 bytes

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