PDF malware analysis — malicious · 05a19ec66fdbf1cc

MALICIOUS

PDF

67.6 KB Created: 2021-03-24 09:48:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 62d60ba6354a8cf1ad342e26605e0be2 SHA-1: c54aedfc8d7743cd65110d4f2210ac9815b4462b SHA-256: 05a19ec66fdbf1cc870054a3664de6f023fd67751c7593e01da502c6f65d53f0

226 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.007 JavaScript

This PDF document functions as a link farm, directing users to various external resources, some of which are hosted on disposable domains. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document's content likely instructs the user to install or connect with a remote support tool, a common tactic for phishing or malware delivery. The presence of numerous external links, many on suspicious domains, suggests an attempt to lead the user to malicious content or exploit kits.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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 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.
Remote-support tool lure high SE_REMOTE_SUPPORT_LURE

Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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://mezovuduw.ru/strik?utm_term=where+to+buy+poulan+chainsaw+parts PDF link annotation
- https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/zizofaweri.pdfIn PDF document text
- http://pasetbs.xyz/chemaxon_marvin_sketchdlrrr.pdfIn PDF document text
- https://mesemexuganu.weebly.com/uploads/1/3/1/4/131437531/bivesarodifut_powepo.pdfIn PDF document text
- https://dubelaxelafef.weebly.com/uploads/1/3/1/1/131164372/91dd2abc5dde372.pdfIn PDF document text
- http://jawazapefaxuzit.mywebcommunity.org/autocad_2019_tutorial_floor_plan.pdfIn PDF document text
- https://vajojesorenum.weebly.com/uploads/1/3/0/9/130969616/fidamuxud.pdfIn PDF document text
- http://sbrf.link/best_aa_aaa_battery_charger_2019ryyou.pdfIn PDF document text
- https://rijozixofufake.weebly.com/uploads/1/3/4/5/134509282/f6085f.pdfIn PDF document text
- http://storeeuro.info/70827366647sj9qg.pdfIn PDF document text
- https://xogovowumo.weebly.com/uploads/1/3/0/7/130738979/8037737.pdfIn PDF document text
- http://clyb-wylcan3.space/big_theta_notation_examplessgrg3.pdfIn PDF document text
- https://jikumuwalomaj.weebly.com/uploads/1/3/1/3/131383204/mexewenimakug.pdfIn PDF document text
- http://afracheat6.xyz/1997_starcraft_pop_up_camper_manualp2vkp.pdfIn PDF document text
- http://pivojowemetobiv.mywebcommunity.org/kosigoxakikiwikedeku.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/rorives/save_the_cat_beat_sheet_excel.pdfIn PDF document text
- https://s3.amazonaws.com/pobixedele/hp_laserjet_1320_driver_install_windows_10.pdfIn PDF document text
- https://s3.amazonaws.com/pidufozu/anydesk_software_for_mac.pdfIn PDF document text
- http://gujimosodaza.myartsonline.com/samsung_s4_service_manual.pdfIn PDF document text
- http://sazasewugekupej.onlinewebshop.net/vutop.pdfIn PDF document text
- https://s3.amazonaws.com/fuvidokibet/pigubisebenipizalanuderab.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cb72.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB72	5368 bytes
SHA-256: `b9f5daf91fbf5c2775d4bd8ff3f6e1525f95b722d7b4fd044d40a7abdb8c78c1`
`font_01_sfnt_off0000ddc4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDC4	9852 bytes
SHA-256: `e7f1350431daacc94d6f971b5dcbd1c1a2062b7014824e9220827fde4c340ff0`

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