Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b3f12ac1048749…

MALICIOUS

PDF

82.4 KB Created: 2021-03-17 23:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d5e6ce3d7329ac2d0b13d7d9fc3f15f SHA-1: 708820d98721ffedd4082cb1785f98cb63df5ece SHA-256: 97b3f12ac1048749da35d0fab78af4f7c15f8b38bb5c70426943d0f4d4f8a254
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically identified as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be related to game cheats or mods, suggesting a lure to entice users to download further malicious content. While no scripts were extracted, the presence of the malicious URL and the strong detection signals indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=bloons+td+6+apk+mod
    • http://wabarexudit.iblogger.org/ferakizijozofewetapukej.pdf
    • http://apelsins.space/6831699948s4u0y.pdf
    • http://noxerazomefo.iblogger.org/goremolazixeguja.pdf
    • http://lastasked.com/ba_private_date_sheet_2019_punjab_universityrlw80.pdf
    • http://majelogajizivo.iblogger.org/zoremasugujepugovomufusa.pdf
    • http://sibiwuketilivi.22web.org/zopoguri.pdf
    • http://tisimewifexumi.iblogger.org/first_world_war_history_in_malayalam.pdf
    • http://oyuncuxx.com/how_to_adjust_the_carburetor_on_a_echo_blower38ij7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pazatuv/bengali_movie_2019_jalshamoviez.pdf
    • https://s3.amazonaws.com/gezejoputiwinu/chicago_cubs_tv_schedule_2019.pdf
    • https://s3.amazonaws.com/xovekolamoxe/memoxaganugakawikifetote.pdf
    • https://s3.amazonaws.com/kelukakeb/football_predictions_apk.pdf
    • https://s3.amazonaws.com/mamibis/12503144892.pdf
    • https://s3.amazonaws.com/dogevazapiwediw/excludes_crossword_answer.pdf
    • https://s3.amazonaws.com/saziwijaxodav/what_does_sisterhood_really_mean.pdf
    • http://gigogapa.epizy.com/26030364722.pdf
    • https://s3.amazonaws.com/nawuvud/23854864152.pdf
    • http://dimelezojexuz.rf.gd/68863133460.pdf
    • https://s3.amazonaws.com/rimepusox/bubibugigejexe.pdf
    • http://zuxekesimulir.epizy.com/teziwofatulig.pdf
    • https://s3.amazonaws.com/somisilegex/baby_feeding_guide_4_month_old.pdf
    • https://s3.amazonaws.com/susonanezaj/arthrex_acl_tightrope.pdf
    • https://s3.amazonaws.com/poguvelefa/free_nonprofit_business_plan_sample.pdf
    • https://s3.amazonaws.com/patotale/is_christmas_eve_a_stock_market_holiday.pdf
    • http://gavutubawoxin.epizy.com/wexevexojebimaviwaseka.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7a3.bin
9e799cee3b344df0fbec23621592151a73cc45d5a53aedeb0cf91cedfe7211d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A3 5276 bytes
font_01_sfnt_off00010985.bin
343e79d9c1b296254b8939e1767b9b8e0c2e7634a0ec39326ec31e8601a9a340		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10985 22608 bytes

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