PDF malware analysis — malicious · b4bb5aade03dc18f

MALICIOUS

PDF

80.0 KB Created: 2020-08-17 10:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4b048c32b947a963e414671b2fa6c580 SHA-1: f08a67a3903f48ee93e308ed1a2eecd62daf0b0b SHA-256: b4bb5aade03dc18ff7fd9ad39a9df8411dd828f954c3e189a07a28653049cb9e

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found by heuristics. This suggests the document's primary purpose is to redirect users to malicious infrastructure. 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.ru/pify?keyword=all+flip+flop+truth+table+pdf
- http://files.studio59live.com/uploads/1/3/1/4/131453213/wipete_nusivexosuwu_xulonawugabot_zirorojojo.pdf
- http://files.ajeplanners.com/uploads/1/3/1/4/131406816/sifojopese_nidukuzinagimo_xutokajofuzi_roxurugar.pdf
- http://files.thomas-irvine.com/uploads/1/3/0/8/130814831/loniwisutuf-sulas-lomaxesazo.pdf
- http://files.redbudpartybarn.com/uploads/1/3/1/4/131437246/45828.pdf
- http://files.beaconchurchofchristgbctx.com/uploads/1/3/1/4/131407315/movunivefebufe.pdf
- https://cdn.shopify.com/s/files/1/0434/4987/6630/files/guwexosisexumuza.pdf
- https://cdn.shopify.com/s/files/1/0427/4431/6070/files/wepuvenaponususeful.pdf
- https://cdn.shopify.com/s/files/1/0432/5982/2244/files/tujadegevofamepiregami.pdf
- https://cdn.shopify.com/s/files/1/0431/9156/6493/files/math_for_economists.pdf
- https://cdn.shopify.com/s/files/1/0428/5795/5487/files/dokoselinaripabovu.pdf
- https://cdn.shopify.com/s/files/1/0431/8694/6206/files/sejanatizu.pdf
- https://cdn.shopify.com/s/files/1/0433/9151/6828/files/cell_culture_techniques_book.pdf
- https://cdn.shopify.com/s/files/1/0431/7387/1767/files/jera_rune_isaac.pdf
- https://cdn.shopify.com/s/files/1/0430/4060/4314/files/49404201776.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d0ab.bin` `081f3697153ea57d371f1c21754b7c20f8666173a1f0c74f9108e2d91d00a75e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0AB	4856 bytes
`font_01_sfnt_off0000e137.bin` `efea94f5e4bb60da2ce2fd138831940526db57275f02ca91518f4b235baf529f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE137	14324 bytes
`font_02_sfnt_off00010f13.bin` `a1d034c4899da820a17195885c2d76cd6be3fce17d3f1660d9b3805b34643d2d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10F13	16272 bytes
`font_03_sfnt_off0001247b.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1247B	4324 bytes

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