MALICIOUS — b4cecc8cc34535256d37476f6dafe6ff9498675670c926384a3039fc13a04465

MALICIOUS — b4cecc8cc34535256d37476f6dafe6ff9498675670c926384a3039fc13a04465 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the SelfDel family. 4 of 56 detection engines flagged it, exhibiting 6 ATT&CK techniques.

Identification

SHA-256: b4cecc8cc34535256d37476f6dafe6ff9498675670c926384a3039fc13a04465
SHA-1: 5fbc3c1aa625f76d0923f73903793f5d0d8eeb71
MD5: f600b8095ec7da9f7ee14016f22da7e9
imphash: 170193414cc4abf0ae27dc2a19d74879
ssdeep: 768:qZL/0F24lercjO4sTZg5ZLvn2IuWZ0kqKNPWQHpE:OLsF2Kerc64sTiX2IV0DhuE
TLSH: T1962F396747309602F391A68B55403F4DB1B6A8EE3136C7518EE2B67E8BE045738B847C
Submitted as: b4cecc8cc34535256d37476f6dafe6ff9498675670c926384a3039fc13a04465
File type: pe · Size: 32784 bytes
Verdict: malicious (100/100) · Family: SelfDel

Detections (4 of 56 engines)

ClamAV (daily): Win.Malware.Juko-9753236-0
Microsoft Defender: Trojan:Win32/SelfDel!pz
Emsisoft (Emergency Kit): Trojan.Downloader.JUKO
Kaspersky (KVRT): HEUR:Trojan.Win32.SelfDel.gen

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 14 weighted signals:

ClamAV (daily) flagged Win.Malware.Juko-9753236-0 (rule Win.Malware.Juko-9753236-0) - engine signal, weight 0.90, confidence 0.95
2 behavioral detection(s) across 2 rule(s): Registry Run Key Persistence [high] (rule tl-run-key) - dynamic signal, weight 0.63, confidence 0.90
Microsoft Defender flagged Trojan:Win32/SelfDel!pz (rule Trojan:Win32/SelfDel!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Trojan.Downloader.JUKO (rule Trojan.Downloader.JUKO) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged HEUR:Trojan.Win32.SelfDel.gen (rule HEUR:Trojan.Win32.SelfDel.gen) - 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 3 external host(s) and 29 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60
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)

17575 behavior events · 3 ATT&CK techniques · 1 dropped files.

Dropped files

C:\Users\analyst\AppData\Roaming\Mozilla\WINWORD.exe - a2c3d08a04b268c3789897aef2b48e8e8270c5d7f4850030318e9a19d69cf0f6

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
http://rb.symcb.com/rb.crl
http://i.assmio.com/3C2866AD8A1A99B400001012D004E7AD.html
http://i.assmio.com/3C8EB6A98A1A9BAC00001791221556AC.926W
http://i.assmio.com/3CEBD6AB8A1A9D8500001EFCC91DA225.aspx
http://i.assmio.com/3D4BC6AA8A1A9F540000262AC71B2DC9.shtm
http://i.assmio.com/3D4BF6AD8A1A9F650000266E7018EDAA.html
http://i.assmio.com/7CDE36AA89B37D2D00002D9F7E625FDF.590F
http://i.assmio.com/7CDE66AD89B37D3E00002DDA087F195F.html
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

i.assmio.com
x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org

Embedded IP addresses

20.184.175.18
20.247.184.142
52.123.252.235
4.230.171.124
172.215.188.225
162.159.142.9
20.184.175.14
52.168.117.168
172.237.146.49
52.110.12.48
52.110.12.26
135.233.45.223
57.154.63.210
72.145.35.101
52.148.114.188
52.110.12.55
52.110.12.52

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report