MALICIOUS — 41894a773c5672f283facfeb355a0d3fdc57d31b0252f5ad15c254807273ba6c

MALICIOUS — 41894a773c5672f283facfeb355a0d3fdc57d31b0252f5ad15c254807273ba6c 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: 41894a773c5672f283facfeb355a0d3fdc57d31b0252f5ad15c254807273ba6c
SHA-1: cf3f459e5a160d4190fc451c495abc07abfe6289
MD5: db24876c7404bbabb28e031fec4c8e11
imphash: 170193414cc4abf0ae27dc2a19d74879
ssdeep: 768:qZL/0F24lercjO4sTZg5ZLvn2IuWZ0kqKNPWQHp1:OLsF2Kerc64sTiX2IV0Dhu1
TLSH: T18B30396647309602F391A78B55403F4DB0B6A9EE3136C7518EE2B67E8BE045738B847C
Submitted as: 41894a773c5672f283facfeb355a0d3fdc57d31b0252f5ad15c254807273ba6c
File type: pe · Size: 36872 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 1 external host(s) and 31 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)

16674 behavior events · 3 ATT&CK techniques · 1 dropped files.

Dropped files

C:\Users\analyst\AppData\Roaming\Mozilla\WINWORD.exe - 64afce37e61ad7b1a6afdedd6772c68aa54e98be1c6a247fbcdabab464068479

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/082AF6AD89E627FF0000119BFB3B3B49.shtm
http://i.assmio.com/089146AB89E629E00000192C5830E0C8.html
http://i.assmio.com/08FE66AD89E62BC70000208AFF402C49.shtm
http://i.assmio.com/094DF6AD89E62D7D00002709B1146875.aspx
http://i.assmio.com/489516A8898909FF000027FF96105BDB.754B
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/
http://i.assmio.com/48E196A089890BA300002E7E8765A4A6.shtm
http://i.assmio.com/48F236AA89890BD600002F6E3D18A75D.aspx

Embedded domains

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

Embedded IP addresses

4.150.223.110
52.253.84.76
4.230.171.124
172.233.212.90
20.184.175.23
135.234.160.245
57.154.63.210
72.153.5.97
52.148.114.188
52.110.12.56
52.110.12.21

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report