Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42d68ffa2a315e4…

MALICIOUS

PDF

72.6 KB Created: 2020-08-25 14:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b9383ca2e93c2436816b2dc6447d79d SHA-1: d60570b65149f35ae1bd70311ade6ec215d8851b SHA-256: e42d68ffa2a315e4045102617af458d413078b9134b251b5a6be3a95caef148c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure for an advance-fee scam, indicating a fraudulent intent. It embeds numerous links, including one to a known malicious redirector at `ttraff.ru`. This redirector is likely used to obscure the final destination, which is probably malicious. The document body, though heavily obfuscated, contains the redirector URL, reinforcing the malicious link's presence.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=computer+application+in+mechanical+engineering+pdf
    • http://files.iooftxgreaterhouston.org/uploads/1/3/1/3/131384113/2729096.pdf
    • http://roguvu.lunarhillicelandics.com/uploads/1/3/1/4/131437919/manisigopewuxesu.pdf
    • http://paxile.pattyspetalsgodfrey.com/uploads/1/3/2/8/132814343/vumirodazisoj.pdf
    • https://cdn.shopify.com/s/files/1/0450/8683/4851/files/tapixudo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8379/2548/files/brigitte_hamann_erzsbet_kirlyn.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/sch-_i800_cyanogenmod.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/52094437294.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/disaster_report_4_north_america.pdf
    • https://cdn.shopify.com/s/files/1/0459/6255/9648/files/23673951097.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/rotojupudifezurifabofevaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/xuberev.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/xakuziliwelewakazaf.pdf
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/difuwazapexegelus.pdf
    • https://cdn.shopify.com/s/files/1/0436/2646/3392/files/superman_wallpaper_3d_android.pdf
    • https://cdn.shopify.com/s/files/1/0437/1231/5545/files/qcm_histologie_de_l_appareil_digestif.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/vuvuxopanifakizamib.pdf
    • https://cdn.shopify.com/s/files/1/0439/1475/6251/files/the_flatshare_book.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_off0000d09d.bin
20f6b09c5147b4b3e34e14b791e0f2faf8f9c4d5b3319e75822f26486ed77cb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD09D 5296 bytes
font_01_sfnt_off0000e26e.bin
40f8d75c84c8d1bb6105f86525b1d68e5b6c54dc761fd80a7d9b15af0ac24bde		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE26E 10636 bytes
font_02_sfnt_off000106c2.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106C2 4324 bytes

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