MALICIOUS — bavugilesezina.pdf
MALICIOUS — bavugilesezina.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (91/100). 2 of 50 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
65a2a1853054c3d1fd1ec1269ea3ed2d38a445581a41cfea45825a3d7e5699f4 - SHA-1:
baeae2400d6fc201f5ca376f6db54521c7519001 - MD5:
292ad603e528e8ec0d55e883847866ec - ssdeep:
768:rgGzpD1HHveZLxSg8m71EcApzldR029qrouwqvs0KjI4eF:UGFZmiFzldR0UtuSI4eF - TLSH:
T1E3306CF38497DD4C7AC66713ADE71054618AC34CA13397A058CCBB6C94BCABDBE11861 - Submitted as: bavugilesezina.pdf
- File type: pdf · Size: 36080 bytes
- Verdict: malicious (91/100)
Detections (2 of 50 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 91/100 is the fusion of 7 weighted signals:
- Dropped a malicious payload (Lazarus): root_.cache_dconf_user - dynamic signal, weight 0.80, confidence 0.90
- Contacted 33 external host(s) at runtime (7 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=lewis+structure+for+nh4, https://cdn.shopify.com/s/files/1/0428/1214/5830/files/gasolenomugiwusik.pdf, https://cdn.shopify.com/s/files/1/0487/9371/4853/files/kipilewozudikaref.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
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9701 behavior events · 1 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ntp.ubuntu.com
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/2cbcf400-ac8d-4d86-9d69-c7f0dff56d2e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/2cbcf400-ac8d-4d86-9d69-c7f0dff56d2e?P1=1787116799&P2=404&P3=2&P4=LQaaAH8G4fLmjn4tS6bsSE17VVcK2hqBjrmpQTCa6L%2fvFWlOVvoQUrv0xq%2bNVJonBz%2bd%2bPET7qE9mVFlIDkCxw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/58b2a9b1-8570-476c-a7c2-f7ab0a20fbf9/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/58b2a9b1-8570-476c-a7c2-f7ab0a20fbf9?P1=1787116844&P2=404&P3=2&P4=cyduAxfyFLaFC%2fOJAEgeGZ%2bWa1tj1jaO%2bEGLCF5Lj6mnQrDNCUGrXgB7oM8ubM0REOFbxWnSxjtHkXDnJxzo%2bA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- 23.40.52.209
Dropped files
- /opt/CAPEv2/storage/analyses/31385/files/bf2022827f8fd544087a25a1dba32b5fdfc69acbb48deba896b4bfe9decdc721 -
bf2022827f8fd544087a25a1dba32b5fdfc69acbb48deba896b4bfe9decdc721 - /opt/CAPEv2/storage/analyses/31385/files/c9b0cfe2d8e0e75963e9c21ea882c4c51117bb77dbb97d6a394349898f7cd213 -
c9b0cfe2d8e0e75963e9c21ea882c4c51117bb77dbb97d6a394349898f7cd213 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7 - tmp_tmp.aUm5lwEugD -
c0807082e16ab4d98f38163ff2f888e8be6f827e6dfe5b2657b3a5a0740325cf
Embedded URLs
- https://cctraff.ru/strik?keyword=lewis+structure+for+nh4
- https://cdn.shopify.com/s/files/1/0428/1214/5830/files/gasolenomugiwusik.pdf
- https://cdn.shopify.com/s/files/1/0487/9371/4853/files/kipilewozudikaref.pdf
- https://cdn.shopify.com/s/files/1/0434/3532/7653/files/tebukenuvojesipegoxa.pdf
- https://cdn.shopify.com/s/files/1/0485/2124/8923/files/explaining_seasons_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0436/1306/1277/files/dog_care_bark_control_collar_manual.pdf
- https://site-1037101.mozfiles.com/files/1037101/24281871550.pdf
- https://site-1036820.mozfiles.com/files/1036820/41955031971.pdf
- https://site-1040080.mozfiles.com/files/1040080/71517268676.pdf
- https://site-1038493.mozfiles.com/files/1038493/faliwonavatomofenekuze.pdf
- https://site-1036894.mozfiles.com/files/1036894/50636924985.pdf
- https://site-1037094.mozfiles.com/files/1037094/dumesuzi.pdf
- https://site-1042604.mozfiles.com/files/1042604/69627825632.pdf
- https://site-1038772.mozfiles.com/files/1038772/46791304713.pdf
- https://site-1036751.mozfiles.com/files/1036751/80061074624.pdf
- https://uploads.strikinglycdn.com/files/d8c31084-1a1c-4b1c-9ea6-0d1835ec5c7b/22654963999.pdf
- https://uploads.strikinglycdn.com/files/92623245-8452-4608-b263-39140f107955/bavegowojerubikoxijikeze.pdf
- https://uploads.strikinglycdn.com/files/1d26f975-3630-43e2-be00-c8ff9dc69112/lapegonin.pdf
- https://uploads.strikinglycdn.com/files/b9f44962-3559-46c9-878c-c02906211dec/77956654187.pdf
- https://uploads.strikinglycdn.com/files/ab822019-f4ce-4d90-906b-908933dea370/xirozunukutadusilodose.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/
Embedded domains
- cctraff.ru
- cdn.shopify.com
- site-1037101.mozfiles.com
- site-1036820.mozfiles.com
- site-1040080.mozfiles.com
- site-1038493.mozfiles.com
- site-1036894.mozfiles.com
- site-1037094.mozfiles.com
- site-1042604.mozfiles.com
- site-1038772.mozfiles.com
- site-1036751.mozfiles.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 52.123.252.239
- 52.110.12.22
- 4.230.171.124
- 125.56.205.17
- 52.230.60.54
- 172.66.2.5
- 48.211.4.16
- 74.178.240.61
- 52.168.112.67
- 20.112.250.133
- 135.232.92.34
- 52.123.129.14
- 72.145.35.100
- 40.99.134.18
- 203.26.79.13
- 52.123.252.231
- 172.178.240.163
- 172.215.188.225
- 52.182.141.63
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report