Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd35d262743fe5c3…

MALICIOUS

PDF

50.1 KB Created: 2020-08-19 04:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65d07cbdf135305628104e30eb2d5b82 SHA-1: 5aa5b134956abe7d185c5e5326f103803aedbd69 SHA-256: bd35d262743fe5c32bb4eaac7d6f484e6eb346d9aafc86bc73b0b06a31ce0122
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bomberman+online+multiplayer+apk'. This indicates an attempt to lure the user to a malicious site, likely for phishing or malware distribution. The document body also contains this URL, reinforcing the attack vector. The presence of a PDF link farm heuristic further suggests a campaign to distribute malicious content.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=bomberman+online+multiplayer+apk
    • http://files.vibrantlifechiropractic.com/uploads/1/3/1/8/131857580/rowufeverokesim.pdf
    • http://taworurox.eslideas.com/uploads/1/3/0/7/130775320/bifuj.pdf
    • http://raxareb.denas-therapy.com/uploads/1/3/1/4/131409090/1970087.pdf
    • http://viburirew.gt-visions.com/uploads/1/3/2/6/132682924/kadojig.pdf
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/48285004379.pdf
    • https://cdn.shopify.com/s/files/1/0430/9545/7941/files/cid_latest_episode_in_hd.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/medical_microbiology_murray_8th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/talubelekavumasixunoz.pdf
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/pojejuxovatofa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/jurife.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1793/files/8875916685.pdf
    • https://cdn.shopify.com/s/files/1/0434/0252/6887/files/black_and_white_photography_magazine_may_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/7918/8118/files/31091847335.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_off0000718d.bin
cb6e296a89a5045c09723d923a6509ef14686ea3929cc4c750649f96291a590e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x718D 5144 bytes
font_01_sfnt_off000082fa.bin
3846b755cd12887499e1e4ef74452ad253dfd15682ce02ae4a065b306a6f9804		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82FA 10276 bytes
font_02_sfnt_off0000a649.bin
ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA649 16092 bytes

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