Malicious PDF — malware analysis report

Static analysis result for SHA-256 a50677a5012de7a6…

MALICIOUS

PDF

41.9 KB Created: 2020-10-19 12:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8eb3357706709d5c8f01e564ec1d0c98 SHA-1: 55e6aadb1c259da51cb88f39f1a2c1a8209360c9 SHA-256: a50677a5012de7a628421c520a2947da54fec68937be5a28119df1d56d017b73
120 Risk Score

Malware Insights

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

The PDF document contains a deceptive message and multiple embedded links, including one pointing to a known malicious redirector. The primary lure is a fake "Flash plugin free download for android" prompt, designed to trick users into clicking through to potentially malicious sites. The document's structure and embedded links indicate a social engineering attack aimed at software download scams.

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.me/123?keyword=flash+plugin+free+download+for+android
    • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/37d346d9.pdf
    • https://sifizebutu.weebly.com/uploads/1/3/0/8/130814914/watuvadinotuwugeso.pdf
    • https://juporolo.weebly.com/uploads/1/3/1/3/131380745/funodudefige-kilavo-voripuwobitokud.pdf
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/3ba5f.pdf
    • https://xazapadikud.weebly.com/uploads/1/3/1/8/131871762/1012226.pdf
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/kebos.pdf
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/govorikepudago-gixidawele-wawep-xoxebilepadevu.pdf
    • https://misopiwulasi.weebly.com/uploads/1/3/1/8/131856666/b2ff26a7e4c.pdf
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdf
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1696278.pdf
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/nobudogijimuwon-xifide-perapumaz.pdf
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/18e0ed4bb75e5.pdf
    • https://uploads.strikinglycdn.com/files/feddca9f-794c-4269-85e3-3e6480fe7103/70784216649.pdf
    • https://uploads.strikinglycdn.com/files/ed0f571f-7b56-4a55-8198-0e0d11e7fffb/fonevaxosafamowetapi.pdf
    • https://uploads.strikinglycdn.com/files/222f200c-7462-4888-96c7-054915be1869/60760830013.pdf
    • https://uploads.strikinglycdn.com/files/d21c573d-4256-40f8-bd7b-9b2629467209/fudemanejasawoxalawebos.pdf
    • https://uploads.strikinglycdn.com/files/d1e977be-0a26-4cb7-9fde-9fe7eda37f83/zapufis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/11942865068.pdf
    • https://cdn.shopify.com/s/files/1/0431/6712/1565/files/autocad_3d_max_tutorialspdf.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000655f.bin
8c5e28ef84679055a3c6c8871867d5ef9f19f094528551fed8aa2e8abf30eb3a
pdf-font-stream PDF embedded font (sfnt) at offset 0x655F 5352 bytes
font_01_sfnt_off0000779d.bin
ffc4b4bc598e41992e9b9122132274206e3841adcfec80453f44129909de1ae7
pdf-font-stream PDF embedded font (sfnt) at offset 0x779D 10144 bytes