MALICIOUS — a500a01458b04e8f68734b8f01225e1bd24ef714b4341817c97abb45e6f9d7eb
MALICIOUS — a500a01458b04e8f68734b8f01225e1bd24ef714b4341817c97abb45e6f9d7eb is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Nupik family. 6 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
a500a01458b04e8f68734b8f01225e1bd24ef714b4341817c97abb45e6f9d7eb - SHA-1:
39fa5aa05b51fe87ca11a331912b334c28565aa5 - MD5:
3dfe718baccbc617d4675c72c3e50d73 - imphash:
532816589b7c9c3bed0fbcc3d1503ba1 - ssdeep:
3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8MpjBFy11Awk:o68i3odBiTl2+TCU/Zhuhg - TLSH:
T13B426C7E0F2B3B03C233CA645D055F9F0022B49AA17D54885A53947DA3FFC27AA5429E - Submitted as: a500a01458b04e8f68734b8f01225e1bd24ef714b4341817c97abb45e6f9d7eb
- File type: pe · Size: 204215 bytes
- Verdict: malicious (100/100) · Family: Nupik
Detections (6 of 55 engines)
- ClamAV (daily): Win.Worm.Nupik-1
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Stratosphere IPS: STRATO_Tor_Onion_C2
- Microsoft Defender: Worm:Win32/Delf.BE!MTB
- Emsisoft (Emergency Kit): Dropped:Generic.Malware.SV!p2p!u.AB9A06E4
- Kaspersky (KVRT): P2P-Worm.Win32.VB.dz
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Worm.Nupik-1 (rule
Win.Worm.Nupik-1) - engine signal, weight 0.90, confidence 0.95 - 1 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Dropped a suspicious payload: BalROK.HTML - dynamic signal, weight 0.40, confidence 0.90
- Contacted 24 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - YARA: Stratosphere IPS flagged STRATO_Tor_Onion_C2 (rule
STRATO_Tor_Onion_C2) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Embedded network infrastructure: 3.6.1.0, 5.0.3.6 - static signal, weight 0.35, confidence 0.60
- Extracted generic config (2 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
1541 behavior events · 1 ATT&CK techniques · 11 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
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- officeclient.microsoft.com
- www.msn.com
Dropped files
- C:\Windows\SHARE_TEMP\Icon12.ico -
67bc1cd876f5059789b0dc8dc16c0b2155e55aca8d1c8439d70c8882e1875740 - C:\BalROK.HTML -
3959c5532031a58119c317dda15ac9313505df4a92c004cd2e76b071b0fad4a4 - C:\Windows\bugMAKER.bat -
fd896d1b2a779733e258bac238a7aa88cf99e8bfde5f21cc60fcaa5f0e8d687e - C:\Windows\SHARE_TEMP\Icon6.ico -
0df5c718b7aee9f045f804f6a53cb0727f66e1ac1df612c6ecf342aed81ce130 - C:\Windows\SHARE_TEMP\Icon2.ico -
00a339ff5338d0cfe91b262175eef4e5fd07f9d28e8f980a1f5ff43a5a81e597 - C:\Windows\SHARE_TEMP\Icon7.ico -
71acc5a88debfdba0eed23272ef4b09fd6609eeb4b1ec457c72444472ad8b3a4 - C:\Windows\winhash_up.exe -
d3c9a3cef98030073ce9451a36a7c92dc14b16b82bcf719ee459e65d8189290b - C:\Windows\SHARE_TEMP\Icon3.ico -
d2770f68db717c5335ceca3f2b0be1e294839a4904d3525f4c5e9847654d39c2 - C:\Windows\SHARE_TEMP\Icon14.ico -
adb0b5eb4fcfcc55c40eaa2ba3d142ed413293b2212bb2a1ddd8ed062db004bf - C:\Windows\SHARE_TEMP\Icon10.ico -
76f05dd79b2d3a08baf928e4811b0f179e96ac351ff8007f2e24f5fbb4b95253 - C:\Windows\SHARE_TEMP\Icon5.ico -
462d333fc849166df8cb4e9ba6edd8404f4d79ebcd535125ecb5e8fe9d2cc0e0
Embedded URLs
- 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/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787856944&P2=404&P3=2&P4=MMOaRF9UQdA5N9kaO8KdO4HLKi%2fKYUSsz5SaUBPhke85J5nqiiW3lISNFijInpeeFaKyfvgyWzSJln9SaLEkTg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787857006&P2=404&P3=2&P4=DS9V%2fuS3btV%2bwqBanlA%2fu%2bFuBLnlUfov12iNffE5NY4pMz7KlpbI2g4E5STLJNq621Zxq5a0OJecsFt4Jvr77A%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 3.6.1.0
- 5.0.3.6
- 51.104.15.252
- 52.123.252.241
- 4.230.171.124
- 85.210.196.11
- 4.144.132.114
- 52.123.252.198
- 74.178.76.44
- 74.179.77.204
- 4.150.223.100
- 74.178.76.54
- 135.233.95.144
- 52.123.252.235
- 203.26.79.13
- 20.76.201.171
- 52.123.128.14
- 52.123.129.14
- 135.234.160.245
- 40.84.97.4
- 52.148.114.188
- 52.110.12.15
- 52.110.12.33
- 72.145.35.99
- 52.110.12.44
File paths
- C:\Programme\eMule
More Nupik samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report