Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e857a2a53452dc…

MALICIOUS

PDF

52.2 KB Created: 2020-08-20 19:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79e1ba8fdbd56bc8024fb7720f2f2705 SHA-1: d603e403257d40ba8c7998ac9124e36cfd9147ff SHA-256: 77e857a2a53452dccc35a58a10599ca9cc9593f79ddd07fe9a8a3231f8fc077c
168 Risk Score

Malware Insights

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

The PDF file contains a lure related to an annual report, which is a common tactic for advance-fee scams. It embeds a link that redirects to a malicious URL, identified as a redirector. The document body also contains the malicious URL and a benign-looking PDF link, likely part of a link farm to improve search engine ranking for the scam. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=british+empire+trust+plc+annual+report
    • http://files.all4pawsdogrescue.com.au/uploads/1/3/1/4/131455883/9425829.pdf
    • http://tipowanam.joychoquette.com/uploads/1/3/1/6/131636879/1211225.pdf
    • https://cdn.shopify.com/s/files/1/0450/4908/6102/files/all_of_me_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0428/6955/5359/files/novikuzuvafagadiwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8266/files/59461591353.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/pipuraxovituki.pdf
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/assetto_corsa_car_setup.pdf
    • https://cdn.shopify.com/s/files/1/0437/7133/0709/files/suicidal_thoughts_biggie.pdf
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/insulin_aspart_davis.pdf
    • https://cdn.shopify.com/s/files/1/0435/2062/2756/files/antoine_hubert_accident_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/zinagexaxofitobin.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/mei-_chan_no_shitsuji.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/avengers_earth_s_mightiest_heroes_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0448/9206/1851/files/pelumaxuvo.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_off00008126.bin
5244b657923336d8516ac43f867390ff8f42f9bfb991e44364593e0d96a59dca
pdf-font-stream PDF embedded font (sfnt) at offset 0x8126 5104 bytes
font_01_sfnt_off00009256.bin
4648459613640bcd0c9128522f181c358a1cb40866a6ca7096d984d892637e57
pdf-font-stream PDF embedded font (sfnt) at offset 0x9256 10392 bytes
font_02_sfnt_off0000b5d4.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D4 4324 bytes