Malicious PDF — malware analysis report

Static analysis result for SHA-256 534d1399be7e8b22…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 06:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dd02fde2b0f3117fc89c1790a69852a SHA-1: 3e63242666a9d5c949ca6274417a6a464796365b SHA-256: 534d1399be7e8b22726fd00f8a1180db5aa2598ba225ff18c42d784fde8aad05
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'passive voice and active voice worksheet' and a URL pointing to 'ttraff.com', which is flagged as a malicious redirector. Another heuristic identifies the document as an advance-fee scam lure, suggesting the intent is to trick the user into a fraudulent transaction. The embedded links likely lead to further stages of the attack.

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.com/pify?keyword=passive+voice+and+active+voice+worksheet
    • http://susivuru.crowsmoon.com/uploads/1/3/1/3/131383483/dunufunovuta.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3351/files/xogubuveruvinilokiri.pdf
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/emiway_bantai_machayenge_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/brat_diet_patient_education.pdf
    • https://cdn.shopify.com/s/files/1/0431/4782/1212/files/tnpsc_current_affairs_february_2020_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0431/7190/5698/files/abramelin_ritual.pdf
    • https://cdn.shopify.com/s/files/1/0440/7525/3910/files/calculus_with_analytic_geometry_peterson.pdf
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/lumatakupifavenefaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/vifakazepasapolomojon.pdf
    • https://cdn.shopify.com/s/files/1/0431/2625/9876/files/31952229198.pdf
    • https://cdn.shopify.com/s/files/1/0434/2956/0486/files/97767294491.pdf
    • https://cdn.shopify.com/s/files/1/0438/1917/2000/files/57699715166.pdf
    • https://cdn.shopify.com/s/files/1/0433/5114/6649/files/wivupexadawuwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/kefajevokerigokeselote.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_off00006bbb.bin
4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBB 2828 bytes
font_01_sfnt_off000075b6.bin
e08904edbcc124696ce3784b4e2f8452180fea5562a571bfa8a0a6fa989c6ede
pdf-font-stream PDF embedded font (sfnt) at offset 0x75B6 5212 bytes
font_02_sfnt_off00008779.bin
9ebde53eaeb547740b2a9b8e87846be5facd13f313eceb015a803fc0191f859a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8779 9736 bytes