MALICIOUS — normal_5f87235097c45.pdf
MALICIOUS — normal_5f87235097c45.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (92/100). 2 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
274a1433ec1e1806296bdfcff0b004db45578e04c4b65d613a4df423a7c8bc76 - SHA-1:
8909f01d7fa93e029c68eeac701e3eb6f699b2eb - MD5:
64f684959aaa69e8b36310ae0303afa7 - ssdeep:
768:8gGzpDupKqqYHb2ymj6NBw62VIubIzWmHdyfC:ZGFqp7wxVIfzRofC - TLSH:
T1E82F7DF310A7ED8C7A869B03AEBB25592449D3C8A237D7505498773DC4BCA7C7E01960 - Submitted as: normal_5f87235097c45.pdf
- File type: pdf · Size: 34958 bytes
- Verdict: malicious (92/100)
Detections (2 of 53 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 92/100 is the fusion of 7 weighted signals:
- Embedded link rated malicious by URL analysis: https://cdn-cms.f-static.net/uploads/4366044/normal_5f871262f2c72.pdf - network signal, weight 0.70, confidence 0.80
- Memory forensics: 3 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 956) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 13 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://ggtraff.ru/123?keyword=fitting+and+turning+n1+question+papers+pdf, https://uploads.strikinglycdn.com/files/eb3c6cc7-2c50-46d2-8fd0-b052f3f2d3ca/20269340203.pdf, https://uploads.strikinglycdn.com/files/fab367fb-7eda-43b1-a382-bdb5c34cd20c/86433227383.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
- Extracted generic config (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9699 behavior events · 0 ATT&CK techniques · 3 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
- desktop-hsgcbep
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 250.255.255.239.in-addr.arpa
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
45cad476b740680f8178457d3f1abc3fb1da03bc4795551cef3c4cc0d2103792 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\c963ba178dee622a9d44cc1e9ffd47dd.png -
b8200a016c73920aaa3b3fafd8755bffe79a0a35a23253611dc686c2edf3c5be - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ggtraff.ru/123?keyword=fitting+and+turning+n1+question+papers+pdf
- https://uploads.strikinglycdn.com/files/eb3c6cc7-2c50-46d2-8fd0-b052f3f2d3ca/20269340203.pdf
- https://uploads.strikinglycdn.com/files/fab367fb-7eda-43b1-a382-bdb5c34cd20c/86433227383.pdf
- https://uploads.strikinglycdn.com/files/f7523e21-db17-47d6-9623-247f4d828d34/94690063011.pdf
- https://uploads.strikinglycdn.com/files/a64be5bc-3924-4754-a4fa-8254657e35e6/238171473.pdf
- https://uploads.strikinglycdn.com/files/4867365e-3e97-4126-884d-e9c5659bc51e/lumubedanag.pdf
- https://cdn-cms.f-static.net/uploads/4366044/normal_5f871262f2c72.pdf
- https://cdn-cms.f-static.net/uploads/4366020/normal_5f87053317d96.pdf
- https://cdn-cms.f-static.net/uploads/4365563/normal_5f8717bc5aa04.pdf
- https://cdn-cms.f-static.net/uploads/4366041/normal_5f870a2e8ccbf.pdf
- https://cdn-cms.f-static.net/uploads/4365575/normal_5f87159ac8e44.pdf
- https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/kezuxamaz-vagajosilaj-vigozobuxomusiz-vexofo.pdf
- https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/5b9fb2c9.pdf
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dekegu.pdf
- https://tavumake.weebly.com/uploads/1/3/2/7/132740551/bfcfaa.pdf
- https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/ead64c6e.pdf
- https://site-1037178.mozfiles.com/files/1037178/57479230340.pdf
- https://site-1039173.mozfiles.com/files/1039173/lulibizisiwapoba.pdf
- https://site-1038601.mozfiles.com/files/1038601/72233220245.pdf
- https://site-1036816.mozfiles.com/files/1036816/16295887092.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
- ggtraff.ru
- uploads.strikinglycdn.com
- cdn-cms.f-static.net
- jeponiruwapin.weebly.com
- nudojafobedem.weebly.com
- bedizegoresupa.weebly.com
- tavumake.weebly.com
- jawowigo.weebly.com
- site-1037178.mozfiles.com
- site-1039173.mozfiles.com
- site-1038601.mozfiles.com
- site-1036816.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.232.92.137
- 4.150.223.109
- 52.123.252.218
- 4.230.171.124
- 20.247.184.197
- 135.232.92.97
- 74.179.77.204
- 40.103.64.226
- 52.123.128.14
- 72.145.35.103
- 203.26.79.13
- 74.178.76.44
- 20.42.65.85
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report