Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad16fd69b7d4943…

MALICIOUS

PDF

64.7 KB Created: 2020-03-29 02:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7aaaed712c0a0cc7bb6e7f43c71320fc SHA-1: a93cb0881f46137db0bde0c80b10c4fd9ef9ee66 SHA-256: cad16fd69b7d4943f3beb5871d67e9db21752cb717e185d44934ee167bee53c0
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior, indicating the document's primary purpose is to drive traffic to a network of linked PDFs hosted on various domains. No scripts were extracted from this sample, limiting further analysis of its behavior.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://74-123-78-29.mgwnet.com/uploads/1/3/1/3/131398345/131398345.html#que+es+la+presion+de+vapor+de+un+liquido
    • http://kunzeartgallery.com/uploads/1/3/0/4/130476454/pefazutanukag_botevesisaj_womovor.pdf
    • http://mail.prayerknight.com/uploads/1/3/0/5/130543369/muzaberadixot-jozak.pdf
    • http://bobstarksf.com/uploads/1/3/0/7/130775982/vipiza.pdf
    • http://laknainc.net/uploads/1/3/0/2/130289196/2345487.pdf
    • http://www.sparkxpress.com/uploads/1/3/0/9/130969845/1917179.pdf
    • http://shop.decoratingwithgrace.com/uploads/1/3/0/4/130483142/731047d0f0cd19c.pdf
    • http://www.church3danimation.com/uploads/1/3/0/7/130740550/galosukegepoxu_sizidofezalemi_potegezedaw_gadudimuti.pdf
    • http://whoknowsmarketing.com/uploads/1/3/0/7/130775560/4e7385bbb2.pdf
    • http://mirroryourbrilliance.com/uploads/1/3/0/6/130620293/6d811.pdf
    • http://swaymyheart.com/uploads/1/3/0/3/130313500/6966081.pdf
    • http://hopefordysautonomia.org/uploads/1/3/0/5/130550706/9145285.pdf
    • http://xdgarchitecture.com/uploads/1/3/0/6/130620877/b6d20aa694e9a7.pdf
    • http://lendobuttons.com/uploads/1/3/0/3/130379218/8353299.pdf
    • http://glamourbeautybar.net/uploads/1/3/0/5/130539048/kowagax-neritesodevo-puvipisilobibum-foxidiwokamab.pdf
    • http://realmrketo.com/uploads/1/3/0/7/130775865/9393520.pdf
    • http://www.juliablack.net/uploads/1/3/0/6/130640069/bevegoziza-kawebitelosesoz-nibuzokojisefi-kilegedowe.pdf
    • http://saulttranssupport.com/uploads/1/3/0/7/130739669/3930678.pdf
    • http://offerleak.metalfilter.net/uploads/1/3/0/7/130775610/adefa72.pdf
    • http://livelivelylifecoaching.com/uploads/1/3/0/2/130289773/2929382.pdf
    • http://apbgu.com/uploads/1/3/0/3/130324005/moxasaluxida.pdf
    • http://www.tikkitikkitembonosarembocharibariruchipipperipembo.com/uploads/1/3/0/9/130969842/3647194.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_off0000ad38.bin
e4234cc660d87882fb48b3600d9b19a188d9727d584fa4cd2cdb0448e0ff926d
pdf-font-stream PDF embedded font (sfnt) at offset 0xAD38 10068 bytes
font_01_sfnt_off0000d1b9.bin
8e0fe7b4f8659f3805cb89d51029bc00f628f99486e5d3c72a314578cf1c31de
pdf-font-stream PDF embedded font (sfnt) at offset 0xD1B9 3072 bytes
font_02_sfnt_off0000dc88.bin
f0651f6e726ab1eb0b7609ff3c4c67088657898907d24b1e9dc31f7e443d440c
pdf-font-stream PDF embedded font (sfnt) at offset 0xDC88 16240 bytes