MALICIOUS — c1f4a870fdb8e0a53d82c238cd1ff0ece57f3aa164f86dae28bfe07d564c3e52

MALICIOUS — c1f4a870fdb8e0a53d82c238cd1ff0ece57f3aa164f86dae28bfe07d564c3e52 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Vobfus family. 5 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: c1f4a870fdb8e0a53d82c238cd1ff0ece57f3aa164f86dae28bfe07d564c3e52
SHA-1: 56bef7f0649999d879ff8b226acc355fc6ffd9e4
MD5: 81b3ca00f1ad5cebfabb5c8d11ecede7
imphash: 13032a39ddfa6734d3efb63156fed92e
ssdeep: 3072:oRSldGj/tm1VNDL0L/RSRDIy5lb5zGRG1:oAdGMscUy5H1
TLSH: T1A444F72D0B10E84BF097BA0B28A9554D1DAEC023B15BD06018F85E1B64F76AFD1C77E9
Submitted as: c1f4a870fdb8e0a53d82c238cd1ff0ece57f3aa164f86dae28bfe07d564c3e52
File type: pe · Size: 253952 bytes
Verdict: malicious (100/100) · Family: Vobfus

Detections (5 of 56 engines)

ClamAV (daily): Win.Malware.Vobfus-9806879-0
Microsoft Defender: Worm:Win32/Vobfus!pz
Emsisoft (Emergency Kit): Gen:Variant.Chinky.4
Trellix Stinger (McAfee): Downloader-CJX.gen.o
Kaspersky (KVRT): Worm.Win32.Vobfus.djot

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

ClamAV (daily) flagged Win.Malware.Vobfus-9806879-0 (rule Win.Malware.Vobfus-9806879-0) - engine signal, weight 0.90, confidence 0.95
1 behavioral detection(s) across 1 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.60, confidence 0.90
Microsoft Defender flagged Worm:Win32/Vobfus!pz (rule Worm:Win32/Vobfus!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Variant.Chinky.4 (rule Gen:Variant.Chinky.4) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged Downloader-CJX.gen.o (rule Downloader-CJX.gen.o) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Worm.Win32.Vobfus.djot (rule Worm.Win32.Vobfus.djot) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Registry Run Key Persistence (T1547.001) (rule Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90
Contacted 17 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

60487 behavior events · 2 ATT&CK techniques · 6 dropped files.

Dropped files

C:\Users\analyst\hauiz.exe - 3c0a782d000d840cde7ed48dae130488aaa816a05ca061b0d3dc3672c08403c9
7d74ff04837330ae60ff7a2bacf68c50212427b22752369d561a4d6c5d21f883 - 7d74ff04837330ae60ff7a2bacf68c50212427b22752369d561a4d6c5d21f883
ecae1eb1f927b2fe3cbe08a8a5508ccf99337ac3e2fec4e015de92df7051ed63 - ecae1eb1f927b2fe3cbe08a8a5508ccf99337ac3e2fec4e015de92df7051ed63
86226e96f0f2e3acc6efd1a9754f9164dfef67bb9518590b48701c320baa7302 - 86226e96f0f2e3acc6efd1a9754f9164dfef67bb9518590b48701c320baa7302
d18eba871671d6ff5b5604187331edd2e55c8f1eb3b267950299ba77f7e44cf8 - d18eba871671d6ff5b5604187331edd2e55c8f1eb3b267950299ba77f7e44cf8
6a53ae7dff8635d32ef64f8c28093a2f65040c4b90b53910c71abd385360feab - 6a53ae7dff8635d32ef64f8c28093a2f65040c4b90b53910c71abd385360feab

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://c.pki.goog/r/r1.crl
http://x2.c.lencr.org/
http://ye.c.lencr.org/
http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
http://yr.c.lencr.org/

Embedded domains

ns1.player1253.com
ns1.videoall.net
ns1.mediashares.org
x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org

Embedded IP addresses

51.132.193.105
52.123.252.238
4.230.171.124
85.210.196.11
74.179.77.204
74.178.240.51
52.168.117.174
74.178.76.128
104.18.33.89
52.230.60.54
72.153.5.136
52.148.114.188
52.110.12.46
52.110.12.3

File paths

E:\Program

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report