MALICIOUS — f8f3acd07675586e02949e16138ea0e949ba2b8b92a541cbe7a0d6e1a0b7d251

MALICIOUS — f8f3acd07675586e02949e16138ea0e949ba2b8b92a541cbe7a0d6e1a0b7d251 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Delf family. 6 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: f8f3acd07675586e02949e16138ea0e949ba2b8b92a541cbe7a0d6e1a0b7d251
• SHA-1: 4bc1d2933884b5f2cb5e5de3e21e09070122f5da
• MD5: db4263c0fe55474ab721c5e2353d2287
• imphash: 31d1c48ee7d8e07a5706e963146db875
• ssdeep: 6144:StfDEsjPhczDQZbO5JCSZT0wwla4G13CmdxLzI9LTB5xnmT:SbXbuJcfcXbz0Tfxo
• TLSH: T14F458E35471732A2E8F2EA605C60AEAD8422F16CA4796D9D2507CC6FF2D9477C8F0358
• Submitted as: f8f3acd07675586e02949e16138ea0e949ba2b8b92a541cbe7a0d6e1a0b7d251
• File type: pe · Size: 286720 bytes
• Verdict: malicious (100/100) · Family: Delf

Detections (6 of 56 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• ClamAV (daily): Win.Trojan.Delf-1564
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Microsoft Defender: Virus:Win32/Viking.JX
• Emsisoft (Emergency Kit): Dropped:Generic.Malware.PWB!dld!Pk!.69063F94
• Kaspersky (KVRT): Virus.Win32.Delf.62976

MITRE ATT&CK

• T1071.001
• T1057
• T1055
• T1112

YARA

• Windows_Injection_Api_Combo

Why this verdict

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

• ClamAV (daily) flagged Win.Trojan.Delf-1564 (rule Win.Trojan.Delf-1564) - engine signal, weight 0.90, confidence 0.95
• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• Microsoft Defender flagged Virus:Win32/Viking.JX (rule Virus:Win32/Viking.JX) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Dropped:Generic.Malware.PWB!dld!Pk!.69063F94 (rule Dropped:Generic.Malware.PWB!dld!Pk!.69063F94) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged Virus.Win32.Delf.62976 (rule Virus.Win32.Delf.62976) - engine signal, weight 0.55, confidence 0.85
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70
• Contacted 3 external host(s) and 14 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
• Anti-analysis: T1082, T1497 - dynamic signal, weight 0.40, confidence 0.75
• YARA: MalwareAnalyser built-in flagged Windows_Injection_Api_Combo (rule Windows_Injection_Api_Combo) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://www.lookde5.com/1.exe - static signal, weight 0.35, confidence 0.60
• 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
• 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)

16353 behavior events · 1 ATT&CK techniques · 0 dropped files.

Runtime network

• 111.52.40.23.in-addr.arpa.
• DESKTOP-HSGCBEP
• 85.52.40.23.in-addr.arpa.
• tas02.sls.update.microsoft.com
• v10.events.data.microsoft.com
• d.1.d.1.c.4.2.1.4.9.5.2.6.e.8.b.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.
• 251.0.0.224.in-addr.arpa.
• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa.
• 252.0.0.224.in-addr.arpa.
• 148.167.190.20.in-addr.arpa.
• settings-win.data.microsoft.com
• 175.117.168.52.in-addr.arpa.
• 40.85.84.40.in-addr.arpa.
• 61.240.178.74.in-addr.arpa.
• 4.97.84.40.in-addr.arpa.
• nexusrules.officeapps.live.com
• www.msftconnecttest.com
• rb.symcd.com

Embedded URLs

• http://www.lookde5.com/1.exe

Embedded domains

• www.lookde5.com
• x1.c.lencr.org
• x2.c.lencr.org
• ye.c.lencr.org
• yr.c.lencr.org

Embedded IP addresses

• 192.168.0.30
• 192.168.8.1
• 20.184.175.1
• 52.230.60.54
• 4.230.171.124
• 104.18.33.89
• 135.233.45.222
• 40.84.97.4
• 52.148.114.188
• 52.110.12.40
• 72.145.35.96
• 52.110.12.46
• 52.168.117.175
• 40.84.85.40
• 74.178.240.61

File paths

• o:\src\python-svn\lib\distutils\command\wininst-9.0-amd64.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report