MALICIOUS — ded0904cb9fcc76f269316853e0f8f0f5dcc97311702f166a6c7ca6ca951f01e

MALICIOUS — ded0904cb9fcc76f269316853e0f8f0f5dcc97311702f166a6c7ca6ca951f01e is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the FmUfymnJNzpb family. 7 of 56 detection engines flagged it, exhibiting 5 ATT&CK techniques.

Identification

SHA-256: ded0904cb9fcc76f269316853e0f8f0f5dcc97311702f166a6c7ca6ca951f01e
SHA-1: 279d8c8baa2de3a48f1b5edd63ecf06a42fd4054
MD5: c18b0c0495499e1c3b3e1cda68af2321
imphash: 2f4ddcfebbcad3bacadc879747151f6f
ssdeep: 1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEcQ8KCx:5dbwovEVyqgoZmZXWfIdQdRaefPTKCx
TLSH: T10738F1501215EE0ED1605D830CAD9E8F6E8A389E10B8B83DC3E1C57563F4B7B57B95A0
Submitted as: ded0904cb9fcc76f269316853e0f8f0f5dcc97311702f166a6c7ca6ca951f01e
File type: pe · Size: 82377 bytes
Verdict: malicious (100/100) · Family: FmUfymnJNzpb

Detections (7 of 56 engines)

MalwareAnalyser heuristics (entropy/packer): UPX
ClamAV (daily): Win.Trojan.Pioneer-10012541-0
Detect It Easy (packer/type): DIE:Microsoft Linker
Microsoft Defender: TrojanDropper:Win32/Floxif!pz
Emsisoft (Emergency Kit): Gen:Trojan.Heur.fmUfymnJNzpb
Trellix Stinger (McAfee): Trojan-FVVX!31F05203A099
Kaspersky (KVRT): Rootkit.Win32.Small.bse

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 15 weighted signals:

ClamAV (daily) flagged Win.Trojan.Pioneer-10012541-0 (rule Win.Trojan.Pioneer-10012541-0) - engine signal, weight 0.90, confidence 0.95
3 behavioral detection(s) across 3 rule(s): Service Installed and Removed in the Same Run [high] (rule tl-service-install-delete) - dynamic signal, weight 0.66, confidence 0.90
Microsoft Defender flagged TrojanDropper:Win32/Floxif!pz (rule TrojanDropper:Win32/Floxif!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Gen:Trojan.Heur.fmUfymnJNzpb (rule Gen:Trojan.Heur.fmUfymnJNzpb) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged Trojan-FVVX!31F05203A099 (rule Trojan-FVVX!31F05203A099) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Rootkit.Win32.Small.bse (rule Rootkit.Win32.Small.bse) - engine signal, weight 0.55, confidence 0.85
Observed at runtime: Windows Service (T1543.003) (rule Windows Service) - dynamic signal, weight 0.40, confidence 0.90
Contacted 2 external host(s) and 17 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Extracted FloodFix config (0 C2) - engine signal, weight 0.45, confidence 0.60
Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70
MalwareAnalyser heuristics (entropy/packer) flagged UPX (rule UPX) - engine signal, weight 0.35, confidence 0.70
Packing/obfuscation: UPX, high-entropy-sections:UPX1, Microsoft Linker - static signal, weight 0.25, confidence 0.55
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)

2222 behavior events · 2 ATT&CK techniques · 2 dropped files.

Dropped files

C:\Users\analyst\AppData\Local\Temp\cnqzk.sys - c960464e40c7d050cd2ce11fd44793065102b049c56b4a5cf487723223843a45
20f6970886c8618ac6e51a8ee0856eb243e7ac58d5a9d50f4c5b228546d73370 - 20f6970886c8618ac6e51a8ee0856eb243e7ac58d5a9d50f4c5b228546d73370

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

x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org

Embedded IP addresses

52.168.117.174
4.230.171.124
40.84.97.4
4.144.132.223
135.232.92.137
135.232.92.97
4.150.223.107
104.18.33.89
135.233.45.221
52.110.12.22
52.110.12.51
92.223.78.30
72.145.35.101
52.148.114.188
52.110.12.18
52.110.12.47

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report