Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f7c50621fb93a5…

MALICIOUS

PDF

82.7 KB Created: 2020-08-12 03:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dc650e3aceb134a09977c1105ee3d3f SHA-1: d16ed227f3ba78c0593d1ad86f7e2dc60edf1036 SHA-256: e9f7c50621fb93a55cadb09ff49b41601b2de05a83536b3acea38b6282ce2aba
160 Risk Score

Malware Insights

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

The PDF contains a lure related to financial instructions, specifically mentioning bank details, which aligns with a Business Email Compromise (BEC) pattern. It also features a link farm and a direct link to a redirector URL, indicating an attempt to lead the user to malicious content. The presence of multiple embedded URLs and the specific heuristic firings strongly suggest a malicious intent to redirect users.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.ru/pify?keyword=borderline+personality+disorder+journal+articles+pdf
    • http://files.nathanhwhittaker.com/uploads/1/3/0/9/130969474/8043f.pdf
    • http://files.12monthbeauty.com/uploads/1/3/0/8/130874128/6301925.pdf
    • http://files.friendsofcampbatawagama.com/uploads/1/3/2/7/132710782/suteranuvep.pdf
    • http://files.poderco.com/uploads/1/3/0/8/130873895/wunapudekewi.pdf
    • http://nakamufo.theredshedcandles.co.nz/uploads/1/3/1/6/131606289/9375488.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/56915790063.pdf
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/xaraxotogifula.pdf
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/bertie_botts_every_flavor_beans.pdf
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/lefawe.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/38525746318.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/22820229919.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.pdf
    • https://cdn.shopify.com/s/files/1/0430/8910/0951/files/13550511094.pdf
    • https://cdn.shopify.com/s/files/1/0432/7378/1411/files/d_d_3._5_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/
    • https://cdn.shopify.com/s/files/1/0429/3469/8

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f96b.bin
70c349a98a3f7f15032c19c0c160b4e6677b172771177f2f943c3a45d3f74b10
pdf-font-stream PDF embedded font (sfnt) at offset 0xF96B 5256 bytes
font_01_sfnt_off00010b65.bin
16808d9fe0f308a9309579e9644bcc99eb065d1e30c7309aabf07277db203bdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x10B65 10404 bytes
font_02_sfnt_off00012eea.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x12EEA 4324 bytes