PDF malware analysis — malicious · d2a71ef649396f7e

MALICIOUS

PDF

78.4 KB Created: 2021-03-30 07:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20

MD5: e86b8169e8cf22909b5aa0fe6b655daf SHA-1: cad3a366393a0d7c28d51de6ddcb0cf35a0a0d51 SHA-256: d2a71ef649396f7e7a19994883fdff5ee46b708d05c151b13e4914d6b45eed10

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with a primary one pointing to `https://midufefew.ru/strik?utm_term=bissell+symphony+pet+steam+mop+leaking`, suggesting a lure to a malicious site. The PDF structure and embedded links indicate it's designed to trick users into visiting potentially harmful external resources.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://midufefew.ru/strik?utm_term=bissell+symphony+pet+steam+mop+leaking PDF link annotation
- https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/1f723271c.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379601/normal_5ff2c3ee6d386.pdfIn PDF document text
- https://botosedasirewen.weebly.com/uploads/1/3/5/9/135961685/8e72959.pdfIn PDF document text
- http://juzawuz.iblogger.org/printable_puzzle_template.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444096/normal_5fdc841462a58.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4403560/normal_60068d3be2a6b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447447/normal_600fad9dc413b.pdfIn PDF document text
- http://xipelosowux.22web.org/ethiopian_reporter_twitter.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4384316/normal_5fcf09eb19725.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://3794eb9c-cc8b-492c-aecc-44533f76aaa6.filesusr.com/ugd/1ee69b_5bec5000b59b4119a6ba80b18f746e24.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/42e76f65-a1bf-4b0f-93d5-bd02cfb34b37/what_age_are_the_secret_seven_books_for.pdfIn PDF document text
- https://ba30dffa-51fe-4caa-9472-6f142403a9bb.filesusr.com/ugd/c2007e_7c7c621c843649f59e5933650a99eabd.pdf?index=trueIn PDF document text
- http://durunorutap.epizy.com/misogekufagurivil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9710edd3-9065-4d9b-9ac4-934cb12035d0/digitech_rp200_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/377af10c-5e82-4b4a-a40a-7d9ebbdee5a5/the_dharma_bums.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4922f868-a107-4cb0-b039-fa2e4b622077/irobot_roomba_i7_black_friday_2020.pdfIn PDF document text
- https://1e1f235d-56dd-4976-b20d-d38e3fe7b172.filesusr.com/ugd/210b45_6358ffcf59174ce39c85665b7857357d.pdf?index=trueIn PDF document text
- https://30621b86-6952-4b41-80af-4d24d830bc7c.filesusr.com/ugd/122077_dcee675578a84890b6eeb5075aae118e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2c1b7daf-29e0-4b87-9e17-e5e939b4037e/can_a_crown_of_thorns_starfish_kill_a_human.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c72f7124-bacd-498c-9265-3699bdfd4115/how_to_wrap_a_present_without_double_sided_tape.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e6c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE6C4	5140 bytes
SHA-256: `23b864cad9e6dadf3654f6aef1d57221d01c96029338b18f1983ad659e934eb3`
`font_01_sfnt_off0000f818.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF818	11288 bytes
SHA-256: `d261d6fcc393bf044e10df9977a9ae664992ea630ed48128bfdac72387d488de`
`font_02_sfnt_off00011e17.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11E17	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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