MALICIOUS — 1b5f082cf4e65c1f57030bd7572280830f8e41c9c19ba4af9e4d1549d6539835
MALICIOUS — 1b5f082cf4e65c1f57030bd7572280830f8e41c9c19ba4af9e4d1549d6539835 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Prepscram family. 6 of 52 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
1b5f082cf4e65c1f57030bd7572280830f8e41c9c19ba4af9e4d1549d6539835 - SHA-1:
f515231abc21ca6ebf41da69f8ea5e47d5923dd1 - MD5:
c361a9358600a9eca645d3d5c833bea9 - imphash:
f1a539a5b71ad53ac586f053145f08ec - ssdeep:
49152:SxnH7B3YEntVWdpf4aa/1xUV+L03bIW68DG2JRPqdK67dGYiuw:AH7BIEnYm/1o+Q3d68y2TPUF7d/Hw - TLSH:
T1025C330E94D0AF84FB7D620C12A7D77FF2A0399A54B9884BAC9D951117F1B3B283409C - Submitted as: 1b5f082cf4e65c1f57030bd7572280830f8e41c9c19ba4af9e4d1549d6539835
- File type: pe · Size: 2415528 bytes
- Verdict: malicious (100/100) · Family: Prepscram
Detections (6 of 52 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Zusy-9957983-0
- Detect It Easy (packer/type): DIE:UPX
- Microsoft Defender: Trojan:Win32/Prepscram!pz
- Emsisoft (Emergency Kit): Gen:Variant.Rootkit.25
- Kaspersky (KVRT): Trojan.Win32.Agent.neyndy
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9957983-0 (rule
Win.Malware.Zusy-9957983-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Prepscram): b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118 - dynamic signal, weight 0.80, confidence 0.90
- Microsoft Defender flagged Trojan:Win32/Prepscram!pz (rule
Trojan:Win32/Prepscram!pz) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Gen:Variant.Rootkit.25 (rule
Gen:Variant.Rootkit.25) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged Trojan.Win32.Agent.neyndy (rule
Trojan.Win32.Agent.neyndy) - engine signal, weight 0.55, confidence 0.85 - Contacted 36 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Detect It Easy (packer/type) flagged DIE:UPX (rule
DIE:UPX) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX, high-entropy-sections:UPX1 - 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
Dynamic analysis (windows)
2362 behavior events · 1 ATT&CK techniques · 17 dropped files.
Runtime network
- www.msftconnecttest.com
- inference.location.live.net
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
- odc.officeapps.live.com
- assets.msn.com
- licensing.mp.microsoft.com
- tas02.sls.update.microsoft.com
- v10.events.data.microsoft.com
- msedge.api.cdp.microsoft.com
- fe3cr.delivery.mp.microsoft.com
Dropped files
- /opt/CAPEv2/storage/analyses/13577/files/6a44d777c7025a94a4270f13e43c1c261b8d09f5669579c5ecacef785a2655dd -
6a44d777c7025a94a4270f13e43c1c261b8d09f5669579c5ecacef785a2655dd - /opt/CAPEv2/storage/analyses/13577/files/65b40589ddd1b058cd241b876c568d5bf241d10fa0ac14a9842d74ac5370d951 -
65b40589ddd1b058cd241b876c568d5bf241d10fa0ac14a9842d74ac5370d951 - /opt/CAPEv2/storage/analyses/13577/files/fbf3c25684c4d726c6e840688a3c1d1968a161c50bb3673207365e5c96238589 -
fbf3c25684c4d726c6e840688a3c1d1968a161c50bb3673207365e5c96238589 - /opt/CAPEv2/storage/analyses/13577/files/5a5d83c1fd4698104007ac4965aecc9fb4a1244192a12fab862b90fa6f27a145 -
5a5d83c1fd4698104007ac4965aecc9fb4a1244192a12fab862b90fa6f27a145 - /opt/CAPEv2/storage/analyses/13577/files/02865a89b743c731963ab114acff49e228e9d74f0434fa7ebedc4da6142a7673 -
02865a89b743c731963ab114acff49e228e9d74f0434fa7ebedc4da6142a7673 - /opt/CAPEv2/storage/analyses/13577/files/b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118 -
b612d46644d0e4a3829c4d6715f71d979103aa487624805363b36f5b4f92b118 - /opt/CAPEv2/storage/analyses/13577/files/bdc415b0483a8689ab4a13c520eb1bb1b9c3f8140eed48ee2140886c23ba8600 -
bdc415b0483a8689ab4a13c520eb1bb1b9c3f8140eed48ee2140886c23ba8600 - /opt/CAPEv2/storage/analyses/13577/files/7f8a135828556a29139d6b6279e6cb19fbe13877ef1ce4386723848eb0a3371d -
7f8a135828556a29139d6b6279e6cb19fbe13877ef1ce4386723848eb0a3371d - /opt/CAPEv2/storage/analyses/13577/files/ec18b1111bbff6d48492c34c95cf3f1df1ebe283bc8c7b3477a8b23434ed168d -
ec18b1111bbff6d48492c34c95cf3f1df1ebe283bc8c7b3477a8b23434ed168d - /opt/CAPEv2/storage/analyses/13577/files/a32b91dd64b0bc3f38709265a95451b3cfe82d6f588d8754d4733cc342dd6ffc -
a32b91dd64b0bc3f38709265a95451b3cfe82d6f588d8754d4733cc342dd6ffc - /opt/CAPEv2/storage/analyses/13577/files/cec8b7b6f162806fb021b4774a875894c4c08645209ad903cfbc7b9476e68f48 -
cec8b7b6f162806fb021b4774a875894c4c08645209ad903cfbc7b9476e68f48 - /opt/CAPEv2/storage/analyses/13577/files/32d91b32f33200d2ba06011b756565e3d38d8fb2f8a33803a4399897134863cd -
32d91b32f33200d2ba06011b756565e3d38d8fb2f8a33803a4399897134863cd - /opt/CAPEv2/storage/analyses/13577/files/017088517845f2a26af7e090fc2e9819dd38ced3edce83f55a265a6264ecfbaf -
017088517845f2a26af7e090fc2e9819dd38ced3edce83f55a265a6264ecfbaf - /opt/CAPEv2/storage/analyses/13577/files/e91eb9a2b68feb847119f87d538f03feb25e74bd8ca450c7403f1b1a1513ba32 -
e91eb9a2b68feb847119f87d538f03feb25e74bd8ca450c7403f1b1a1513ba32 - /opt/CAPEv2/storage/analyses/13577/files/3f507a3a9d346e56099392e0d10ddaf6722b26d11af808372ffb9aec8ce37eb7 -
3f507a3a9d346e56099392e0d10ddaf6722b26d11af808372ffb9aec8ce37eb7
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://203.26.79.13/filestreamingservice//files/736bdc20-582e-46c5-ba31-d31d3d97258e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/736bdc20-582e-46c5-ba31-d31d3d97258e?P1=1786551317&P2=404&P3=2&P4=AJksc91GEwQMcHLQFss6BVKT1oOTJumnL4DzOfNLRamwl3i3eh5hy0Mo68MvM0d3f3YbaJ2dKG95Fo19%2bUp0jg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c48ae315-f580-4b6c-801e-58a0f885749d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c48ae315-f580-4b6c-801e-58a0f885749d?P1=1786551397&P2=404&P3=2&P4=bsEEO9mffKoPIv%2fF4SgQzJ0hgtlQf%2b2bk15h5UEa4WSUCncZ2zgSUyE2HWCnDlUFWrMDkGVZoc86hu2KZ0pq5w%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ow.ga
- p.me
- x5.es
- 8x.ch
Embedded IP addresses
- 52.110.12.50
- 52.110.12.28
- 4.150.223.100
- 40.84.97.4
- 4.230.171.124
- 20.42.179.204
- 20.247.184.197
- 74.179.77.204
- 52.168.112.67
- 74.178.76.54
- 203.26.79.13
- 52.123.252.240
- 74.178.232.29
- 135.234.160.245
- 52.168.117.174
- 51.104.15.253
- 52.123.252.244
- 72.145.35.96
- 52.148.114.188
- 74.178.76.44
- 52.110.12.33
More Prepscram samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report