MALICIOUS — e19a76636b20f4b5e1e66e52d54d0578d57685b0224354d47987f400145b80fa

MALICIOUS — e19a76636b20f4b5e1e66e52d54d0578d57685b0224354d47987f400145b80fa 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 4 ATT&CK techniques.

Identification

SHA-256: e19a76636b20f4b5e1e66e52d54d0578d57685b0224354d47987f400145b80fa
SHA-1: eff4bb9b97b52af00d6bdccfb2788663dd9f96cb
MD5: c4e4f2e1fc8b9e803429d2951b51d14b
imphash: 86f58d329494cf25a444d139bdced039
ssdeep: 3072:cyhC1QzeUhlyi7a6LE7WTdl//PhWYbFUlr:cGtiniG6LEqfrgr
TLSH: T1CF3DC60ADA1AAF4AF0B687010499271E416EF4B2324F31CD275AACEFBBE54577474039
Submitted as: e19a76636b20f4b5e1e66e52d54d0578d57685b0224354d47987f400145b80fa
File type: pe · Size: 126976 bytes
Verdict: malicious (100/100) · Family: Vobfus

Detections (5 of 56 engines)

ClamAV (daily): Win.Worm.Vobfus-7192126-0
Microsoft Defender: Worm:Win32/Vobfus!pz
Emsisoft (Emergency Kit): Gen:Variant.Chinky.6
Trellix Stinger (McAfee): VBObfus.g
Kaspersky (KVRT): Trojan.Win32.VBKrypt.erlj

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 13 weighted signals:

ClamAV (daily) flagged Win.Worm.Vobfus-7192126-0 (rule Win.Worm.Vobfus-7192126-0) - 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.6 (rule Gen:Variant.Chinky.6) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged VBObfus.g (rule VBObfus.g) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Trojan.Win32.VBKrypt.erlj (rule Trojan.Win32.VBKrypt.erlj) - 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
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
Contacted 5 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)

37814 behavior events · 3 ATT&CK techniques · 3 dropped files.

Dropped files

C:\Users\analyst\wuepioc.exe - db67367ccd345f60660245d2e02c0490d9d75969c932c051c2ac353401dd4ffc
4e71f6a16c4673ecd2d9c38b4e4a92942af94c2a6304a602b7feb8ce46f41e39 - 4e71f6a16c4673ecd2d9c38b4e4a92942af94c2a6304a602b7feb8ce46f41e39
dab7ebff0186902f7b22e5e5635d352e497ce0f853394166621a36740208931d - dab7ebff0186902f7b22e5e5635d352e497ce0f853394166621a36740208931d

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl

Embedded domains

ns1.player1532.com

Embedded IP addresses

4.150.223.100
52.123.252.240
20.247.184.197
4.230.171.124
104.18.33.89
4.150.223.99
20.42.72.131
172.178.240.161
4.247.188.224
72.153.5.140
52.148.114.188
52.110.12.10
52.110.12.14

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report