MALICIOUS — befd6be22b6900b7885ad033132bde08fa103c6dda0b6698b27137878d9604cb

MALICIOUS — befd6be22b6900b7885ad033132bde08fa103c6dda0b6698b27137878d9604cb is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100). 4 of 54 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: befd6be22b6900b7885ad033132bde08fa103c6dda0b6698b27137878d9604cb
• SHA-1: fc413226ba873e2c2227f85489b7e51e5496a544
• MD5: 2579bb70887425970af131e2830bce3e
• ssdeep: 1536:OkQiCyCz3L4F3hhTGN7tUT4IHaAb6Nboq93w1ao71uWgu4EkS8tpeDk/6WUpO7SG:9CyCzb4ZaI1HaWkboq93fof4Ed8b/V75
• TLSH: T11A38C0F3219BEE4C768BDB0728EB1159648AE2C461A1EF1014C4677CD9BC5BEBB10B11
• Submitted as: befd6be22b6900b7885ad033132bde08fa103c6dda0b6698b27137878d9604cb
• File type: pdf · Size: 81947 bytes
• Verdict: malicious (99/100)

Detections (4 of 54 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• ClamAV (daily): Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1105
• T1566.002

Why this verdict

The malicious score of 99/100 is the fusion of 11 weighted signals:

• ClamAV (daily) flagged Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 (rule Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) - engine signal, weight 0.90, confidence 0.95
• Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Hoax.PDF.Phish.gen (rule HEUR:Hoax.PDF.Phish.gen) - engine signal, weight 0.55, confidence 0.85
• MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule high-entropy-blob) - engine signal, weight 0.35, confidence 0.70
• Embedded link rated suspicious by URL analysis: http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210908_CD449914E131EF15.pdf - network signal, weight 0.40, confidence 0.60
• Embedded network infrastructure: http://theseadiaries.com/ckfinder/userfiles/files/kewajubiruwabokodiwowexi.pdf, http://liubeauty.com/luutru/files/13747848600.pdf, http://razzledazzleevents.in/userfiles/file/gomabov.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
• Contacted 5 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
• Extracted generic config (19 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
• Memory forensics: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. RWX/private injected region in Acrobat.exe (pid 3484) (rule windows.malfind.Malfind) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

1127 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• ntp.ubuntu.com
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 23.40.52.209
• 23.11.37.157
• 172.217.25.206
• 4.144.132.114 SG · Singapore · AS8075 Microsoft Corporation
• 52.123.252.212 AU · Sydney · AS8075 Microsoft Corporation
• 23.198.40.44
• 52.110.12.50 AU · Sydney · AS8075 Microsoft Corporation
• 4.230.171.124 KR · Seoul · AS8075 Microsoft Corporation
• 40.126.14.162
• 150.171.28.11
• 4.247.188.233 IN · Pune · AS8075 Microsoft Corporation
• 23.221.133.185

Dropped files

• root_.cache_dconf_user - 96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7

Embedded URLs

• https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=language+difficulty+ranking+for+arabic+speakers
• http://theseadiaries.com/ckfinder/userfiles/files/kewajubiruwabokodiwowexi.pdf
• http://liubeauty.com/luutru/files/13747848600.pdf
• http://razzledazzleevents.in/userfiles/file/gomabov.pdf
• https://guijek.com/userfiles/file/28369531883.pdf
• http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210908_CD449914E131EF15.pdf
• http://szpital-sulecin.pl/images/fckfiles/file/88437330871.pdf
• http://greatwalledmond.com/ckfinder/userfiles/files/63635973273.pdf
• http://fandimnarodaku.cz/upload/file/9402912727.pdf
• http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/g9nbm7mp1b6dohn43g9i8i4d3m/13858464280.pdf
• http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131b8aa58d92---kukotibazupilivo.pdf
• http://vuatoyen.com/uploads/userfiles/file/botufifiribax.pdf
• http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134e5bb90653---96763767536.pdf
• http://ordineveterinarireggioemilia.it/userfiles/files/buluwozuxadagavapejukep.pdf
• https://frigosztufi.ro/ckfinder/userfiles/files/56430573584.pdf
• http://beccaro.it/userfiles/files/54891897234.pdf
• http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133b5e75888f---28531661306.pdf
• http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16136ff959a374---16982763903.pdf
• http://salamatekhanevadeh.ir/ckeditor/files/files/76670964162.pdf
• http://zjbfjt.com/upload/files/doguzozedupe.pdf
• https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/9bgin620tlt21pt2t6g7ime6tl/80545416055.pdf
• http://motopujcovnateplice.cz/userfiles/file/73195544126.pdf
• http://cuacuonnhaxuongbinhduong.com/upload/files/90568816709.pdf
• http://abarappresentanze.it/userfiles/files/garebifezawavozuz.pdf
• http://alajwakh.com/uploaded_files/userfiles/files/rajusubek.pdf

Embedded domains

• feedproxy.google.com
• theseadiaries.com
• liubeauty.com
• razzledazzleevents.in
• guijek.com
• xn--o39a91gvwm83kbsn.net
• szpital-sulecin.pl
• greatwalledmond.com
• brodart01.com
• www.nandomoraes.com.br
• vuatoyen.com
• www.infranetltd.com
• ordineveterinarireggioemilia.it
• beccaro.it
• www.fotografoeventimilano.com
• socialbomjesus.org.br
• salamatekhanevadeh.ir
• zjbfjt.com
• www.thecandystoresudbury.com
• cuacuonnhaxuongbinhduong.com
• abarappresentanze.it
• alajwakh.com
• www.w3.org
• purl.org
• ns.adobe.com

Embedded IP addresses

• 4.144.132.114
• 52.123.252.212
• 52.110.12.50
• 4.230.171.124
• 4.247.188.233

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report