Malicious PDF — malware analysis report

Static analysis result for SHA-256 58dbe923ce4120f8…

MALICIOUS

PDF

41.1 KB Created: 2020-08-01 20:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b525c0c34f8d3395bdc2b81455782ae SHA-1: 05db128d9752a9cdefdfc1a00c7347d70765a8b5 SHA-256: 58dbe923ce4120f81148c3443fb8c353ee48bc7fffde441e89090b7bbd3074a7
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one prominent link identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Georgia residential lease agreement 2017 pdf' and includes the malicious URL. This suggests a social engineering tactic to trick users into clicking the link, which then redirects them to potentially harmful 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.com/pify?keyword=georgia+residential+lease+agreement+2017+pdf
    • http://files.ecrirebeaute.com/uploads/1/3/0/8/130874359/a121ddfdea83df.pdf
    • http://files.truthisstrangerthansciencefiction.org/uploads/1/3/0/7/130775025/2703800.pdf
    • http://files.amyjcheney.com/uploads/1/3/0/8/130874567/jovekitof.pdf
    • http://files.musicalfuturesaustralia.org/uploads/1/3/0/8/130813736/3799659.pdf
    • http://files.tcnorthwestbaseball.com/uploads/1/3/1/4/131407493/vugazoguxopiro.pdf
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/fanilukojozekusokemelot.pdf
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/barinojeruvevutezudefekor.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/60292924734.pdf
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/wepomufaguxedizebaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5421/0980/files/29869022653.pdf
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/63873700914.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6260/files/68882293640.pdf
    • https://cdn.shopify.com/s/files/1/0432/7640/2854/files/41297136969.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/67062842120.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/fuxunodofa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5933/9679/files/lipijitijuli.pdf
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/91291718793.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000623a.bin
5b47c647999b31cdb409b0e0d0c4655b3d81d3c7a2b73874e77605982e208bec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x623A 5796 bytes
font_01_sfnt_off000075ee.bin
98a04018bc1005cdf66f4120c4cb872c5e1403a08fb95d1c3542d400df3230f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75EE 9852 bytes

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