PDF malware analysis — malicious · bebee1f5073ff9f6

MALICIOUS

PDF

119.5 KB Created: 2021-03-12 12:22:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 5d720080d4bb91ff286ebfa226354f1d SHA-1: 240d2c4d1fa57901528802f8e881ec701b89c165 SHA-256: bebee1f5073ff9f6732c726b725ab54710f6bc70544038f7658c6a2f07eeb6b1

254 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, with a critical ClamAV detection. The embedded URLs, particularly 'https://dafemum.ru/award?keyword=l+am%25C3%25A9nagement+du+territoire+en+algerie+pdf', are flagged as malicious redirectors. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document attempts to trick the user into executing commands, further supporting a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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://dafemum.ru/award?keyword=l+am%25C3%25A9nagement+du+territoire+en+algerie+pdf In PDF document text
- https://cdn.sqhk.co/remowiwa/0LlSmX6/pajotokibeser.pdfIn PDF document text
- http://esclick.pro/wexobubidemlp54.pdfIn PDF document text
- https://wosiwimobej.weebly.com/uploads/1/3/1/1/131164223/7876318.pdfIn PDF document text
- https://cdn.sqhk.co/wuzosiboweja/hjgegLW/vixujodogipejexivije.pdfIn PDF document text
- http://erse.xyz/thule_cycle_carrier_instructionsqcknv.pdfIn PDF document text
- https://xorewodanuvidiw.weebly.com/uploads/1/3/1/3/131381095/kalutusi_naxodijakog_gutinumob_puminizoko.pdfIn PDF document text
- https://kenemujawov.weebly.com/uploads/1/3/4/6/134645985/fisipegovasepevujafa.pdfIn PDF document text
- https://cdn.sqhk.co/kinemefuwa/kjg2Qgh/43079019232.pdfIn PDF document text
- http://reduslimitalia.website/79731952563cn7ks.pdfIn PDF document text
- https://jakinazar.weebly.com/uploads/1/3/1/0/131070367/4789847.pdfIn PDF document text
- https://cdn.sqhk.co/wifopuzuxiba/jjkxjiV/wazexudobaxasutamoxaru.pdfIn PDF document text
- https://cdn.sqhk.co/gebemiwisero/gjjhehd/nostalgia_hard_candy_cotton_candy_maker_parts.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://s3.amazonaws.com/vedexajawo/bisapomuluw.pdfIn PDF document text
- https://s3.amazonaws.com/lorifumofelu/53806935301.pdfIn PDF document text
- https://s3.amazonaws.com/vovopafubipu/xezalebimodoneguregizisol.pdfIn PDF document text
- https://s3.amazonaws.com/sizadagazagaj/what_are_the_element_of_system_approach_to_instruction.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/74baad5a-2561-4447-8b55-425b5644c17e/spanish_translation_past_tense.pdfIn PDF document text
- https://s3.amazonaws.com/woneketelak/idiot_s_guide_to_lust_epidemic.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6cdd5355-5a14-459e-8a90-d8ded28d7da5/zevovinatum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8228222a-b20f-422e-9162-d30589d1ff68/reading_derridas_of_grammatology.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_off000186d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x186D6	5148 bytes
SHA-256: `aed4687b9815cd9b16463099c05921a539a75140bdad853c3758e72f4b3fa030`
`font_01_sfnt_off000197fb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x197FB	12672 bytes
SHA-256: `b40b99ffd20ed903fbf3b08ec4fa76b702e8e81e8ac5191546c5cc88ef75dc6e`
`font_02_sfnt_off0001bfa5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1BFA5	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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