Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cea76fde009388b…

MALICIOUS

PDF

47.6 KB Created: 2020-08-23 06:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: efaebd1659aa133b7903ac31396404b2 SHA-1: fc2787a27852905d2ef9418f1368f3dac06ec11f SHA-256: 8cea76fde009388b04e901c2422a0bf177aead31a8ef36ed596b63423813b7bd
152 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, including a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=best+travel+guide+books+for+paris'. The document body text, though partially corrupted, suggests a lure related to travel guides. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to redirect users to potentially harmful sites.

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=best+travel+guide+books+for+paris
    • http://files.diamondtechdefense.com/uploads/1/3/2/8/132814155/gaxuboxuwewute-butugudisin-bikalijimikawus-gomulopegu.pdf
    • http://vugovatot.sandhurstfunride.com/uploads/1/3/2/3/132302921/1764914.pdf
    • http://tegetel.thephotocopiedhipster.com/uploads/1/3/2/7/132712615/20b33fe3eb.pdf
    • http://selajenaz.janellesmithnutrition.com/uploads/1/3/1/4/131483603/2ef9b.pdf
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/xavelogibozisaxozub.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/tumefudo.pdf
    • https://cdn.shopify.com/s/files/1/0438/1474/8322/files/bratstvo_crnog_bodea_17.pdf
    • https://cdn.shopify.com/s/files/1/0440/9131/0232/files/latelajefif.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/brahma_purana_english.pdf
    • https://cdn.shopify.com/s/files/1/0429/4085/8527/files/sowev.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/android_rpg_games_best_graphics.pdf
    • https://cdn.shopify.com/s/files/1/0430/6419/7273/files/self_confrontation.pdf
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/gixazuvejisisitafu.pdf
    • https://cdn.shopify.com/s/files/1/0462/5625/9221/files/following_h_s_guidelines.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_off00006fe7.bin
15f5094a34f6d52f8deed60eb07931750a6734a850836e1d899af4df0eefbd53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE7 5296 bytes
font_01_sfnt_off00008205.bin
878bd8aeae698a3d1f5d12721beb090218cd385b6693000670506e50a0859cdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8205 9844 bytes
font_02_sfnt_off0000a3ba.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3BA 4324 bytes

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