Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe1f5cb065f80c79…

MALICIOUS

PDF

39.3 KB Created: 2020-08-18 21:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8847deb2490e631bed1f17dd5c6a35a4 SHA-1: e535685c41facc2c04b7d13b476715847168299e SHA-256: fe1f5cb065f80c7918d674c88abd1d4e7424f5fbab04ff274cfcd9568183db4b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=t%25E1%25BA%25A3i+avatar+musik+apk'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the same malicious URL and a reference to 'avatar musik apk', suggesting a lure to download potentially unwanted or malicious software. No scripts were extracted from this sample.

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=t%25E1%25BA%25A3i+avatar+musik+apk
    • http://piravup.ruthnadiamassage.com/uploads/1/3/1/3/131379598/969973.pdf
    • http://mesok.grovecityfoodpantry.com/uploads/1/3/1/1/131163927/xujomapafukamukogaji.pdf
    • http://ziwuj.noorsummercamp.com/uploads/1/3/0/7/130776167/6954381.pdf
    • https://cdn.shopify.com/s/files/1/0432/1781/3661/files/rezamozunetanove.pdf
    • https://cdn.shopify.com/s/files/1/0433/7808/1959/files/13924598593.pdf
    • https://cdn.shopify.com/s/files/1/0434/4211/0631/files/free_annual_credit_report_federal.pdf
    • https://cdn.shopify.com/s/files/1/0430/8644/6746/files/john_macionis_sociology_14th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/govaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6974/2999/files/23490628331.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8949/files/oriflame_catalogue_july_2020.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/commercial_bread_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/mozujimulifusikibejanese.pdf
    • https://cdn.shopify.com/s/files/1/0436/0703/1966/files/nebogexibikekuzejo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/lujirubabufinufalifokox.pdf
    • https://cdn.shopify.com/s/files/1/0433/9512/1319/files/blood_death_knight_best_in_slot.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/41173076119.pdf
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/dupodagugajomiv.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_off00004d44.bin
7b5237dce27a230c00dfc05ca6ed8a5d3c18590453efbc1f9f57beed0185a01c
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D44 4820 bytes
font_01_sfnt_off00005d11.bin
429974c01f371b6f899655dc087b2cc928e0373fca81ae70e634bebb6c097d48
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D11 10512 bytes
font_02_sfnt_off0000807b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x807B 4324 bytes