MALICIOUS — b319d03f4eb9120cb7a4584b6c75be04dab781e541ffc74e252945e8522d7504.exe

MALICIOUS — b319d03f4eb9120cb7a4584b6c75be04dab781e541ffc74e252945e8522d7504.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the PyInstaller family. 7 of 26 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

SHA-256: b319d03f4eb9120cb7a4584b6c75be04dab781e541ffc74e252945e8522d7504
SHA-1: cf36ff2b720de669f384d3c1bb03beb0d71a205d
MD5: 56538acb9f85a795cbb7a53afe5f254e
imphash: 4ba3f97ab4d7908411ad46e497198ac7
ssdeep: 393216:UUlanf69Y16IlozmA9P+7nLWrW2XMCHWUjXEcuI3/PGTAI:UnnfDHlozmAd+7nLEW2XMb8XRH/O7
TLSH: T1686E3367278F2084D9F1E0F89C584CDE5033E5691932A3AC5E03EC3E70A557BA8F156A
Submitted as: b319d03f4eb9120cb7a4584b6c75be04dab781e541ffc74e252945e8522d7504.exe
File type: pe · Size: 14317124 bytes
Verdict: malicious (99/100) · Family: PyInstaller

Source: MalwareBazaar · first seen 2026-07-26T00:00:00.000Z · SHA-256 verified

Detections (7 of 26 engines)

capa (capabilities): beacon to command-and-control
MalwareAnalyser heuristics (entropy/packer): PyInstaller
Hash: abuse.ch ThreatFox: known-malicious-hash
Detect It Easy (packer/type): DIE:PyInstaller
Microsoft Defender: Trojan:Win32/Wacatac.B!ml
Emsisoft (Emergency Kit): Gen:Variant.Yogi.14068
Kaspersky (KVRT): HEUR:Trojan.Python.Agent.gen

MITRE ATT&CK

Why this verdict

The malicious score of 99/100 is the fusion of 9 weighted signals:

Hash: abuse.ch ThreatFox flagged known-malicious-hash (rule known-malicious-hash) - engine signal, weight 0.90, confidence 0.95
Memory forensics: 5 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 8012) (rule windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85
Microsoft Defender flagged Trojan:Win32/Wacatac.B!ml (rule Trojan:Win32/Wacatac.B!ml) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.Yogi.14068 (rule Gen:Variant.Yogi.14068) - engine signal, weight 0.55, confidence 0.85
beacon to command-and-control (rule beacon to command-and-control) - capa signal, weight 0.45, confidence 0.80
Detect It Easy (packer/type) flagged DIE:PyInstaller (rule DIE:PyInstaller) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: PyInstaller - 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
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

5209 behavior events · 1 ATT&CK techniques · 27 dropped files.

Dropped files

/opt/CAPEv2/storage/analyses/3615/files/7b17bd534fe42e6d40f57005dd4378620d5ed12e91ec64de43f598144a924508 - 7b17bd534fe42e6d40f57005dd4378620d5ed12e91ec64de43f598144a924508
/opt/CAPEv2/storage/analyses/3615/files/36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153 - 36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
/opt/CAPEv2/storage/analyses/3615/files/eac17b370417ba1c6025c50ada2554c283e3622ae99ed9cc16074c881b3219be - eac17b370417ba1c6025c50ada2554c283e3622ae99ed9cc16074c881b3219be
/opt/CAPEv2/storage/analyses/3615/files/6435c679a3a3ff4f16708ebc43f7ca62456c110ac1ea94f617d8052c90c143c7 - 6435c679a3a3ff4f16708ebc43f7ca62456c110ac1ea94f617d8052c90c143c7
/opt/CAPEv2/storage/analyses/3615/files/fc3b481684b926350057e263622a2a5335b149a0498a8d65c4f37e39dd90b640 - fc3b481684b926350057e263622a2a5335b149a0498a8d65c4f37e39dd90b640
/opt/CAPEv2/storage/analyses/3615/files/7e19f273192e0f5f7954e51e8799002d97bc2a480c08f6ab29d291ce79b38824 - 7e19f273192e0f5f7954e51e8799002d97bc2a480c08f6ab29d291ce79b38824
/opt/CAPEv2/storage/analyses/3615/files/099b4b2893c0153eddaf56b9a8e99489fd39f2c4489fff96c0898ea4ae5faf09 - 099b4b2893c0153eddaf56b9a8e99489fd39f2c4489fff96c0898ea4ae5faf09
/opt/CAPEv2/storage/analyses/3615/files/1e17a6a3f04eb2dbf0841eefb922dbac1a177d72a32cc0862579d796ad9aa223 - 1e17a6a3f04eb2dbf0841eefb922dbac1a177d72a32cc0862579d796ad9aa223
/opt/CAPEv2/storage/analyses/3615/files/2693c7ee4fba55dc548f641c0cb94485d0e18596ffef16541bd43a5104c28b20 - 2693c7ee4fba55dc548f641c0cb94485d0e18596ffef16541bd43a5104c28b20
/opt/CAPEv2/storage/analyses/3615/files/78e5994c29d8851f28b5b12d59d742d876683aea58eceea1fb895b2036cdcdeb - 78e5994c29d8851f28b5b12d59d742d876683aea58eceea1fb895b2036cdcdeb
/opt/CAPEv2/storage/analyses/3615/files/f63c6c7e71c342084d8f1a108786ca6975a52cefef8be32cc2589e6e2fe060c8 - f63c6c7e71c342084d8f1a108786ca6975a52cefef8be32cc2589e6e2fe060c8
/opt/CAPEv2/storage/analyses/3615/files/a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4 - a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
/opt/CAPEv2/storage/analyses/3615/files/eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a - eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
/opt/CAPEv2/storage/analyses/3615/files/4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43 - 4e5d5d20d6d31e72ab341c81e97b89e514326c4c861b48638243bdf0918cfa43
/opt/CAPEv2/storage/analyses/3615/files/b715d1c18e9a9c1531f21c02003b4c6726742d1a2441a1893bc3d79d7bb50e91 - b715d1c18e9a9c1531f21c02003b4c6726742d1a2441a1893bc3d79d7bb50e91

Embedded URLs

http://schemas.microsoft.com/SMI/2016/WindowsSettings

Embedded domains

schemas.microsoft.com
2.pl
6.me
i.us
8.ru
www.msftconnecttest.com
www.bing.com
config.edge.skype.com
edge.microsoft.com
watson.events.data.microsoft.com
aps.prod.windows.com
dns.msftncsi.com
ecs.office.com
g.live.com
fs.microsoft.com
self.events.data.microsoft.com
msedge.api.cdp.microsoft.com
www.msftncsi.com
geo.prod.do.dsp.mp.microsoft.com
geover.prod.do.dsp.mp.microsoft.com

File paths

a:\$
n:\{g

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report