MALICIOUS — 1d263fca637e0985a98ffaa98730486d084b4c87e5d616d00fc138433d09cf61

MALICIOUS — 1d263fca637e0985a98ffaa98730486d084b4c87e5d616d00fc138433d09cf61 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: 1d263fca637e0985a98ffaa98730486d084b4c87e5d616d00fc138433d09cf61
SHA-1: afe023e1b9ce6e82cb331b0f0c2918c8e609e041
MD5: 05c1521499bc818435828d01da17d531
imphash: 366d6109d160103d267b13fb3bdb95d3
ssdeep: 1536:X4EshwRK3O9uBxeDtMYHa27J14ltxporZ45igA:IEshwRKUkeV6gJ1uCt45VA
TLSH: T1E63D3B887EADD4F1E167C603CAC539FC265ED10A791297B826E69B1B01D22F7703122D
Submitted as: 1d263fca637e0985a98ffaa98730486d084b4c87e5d616d00fc138433d09cf61
File type: pe · Size: 126976 bytes
Verdict: malicious (100/100) · Family: Vobfus

Detections (5 of 56 engines)

ClamAV (daily): Win.Trojan.VB-1668
Microsoft Defender: Worm:Win32/Vobfus!pz
Emsisoft (Emergency Kit): Gen:Variant.VBInject.11
Trellix Stinger (McAfee): Trojan-FAEH!05C1521499BC
Kaspersky (KVRT): Trojan.Win32.Vobfus.rku

MITRE ATT&CK

Why this verdict

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

ClamAV (daily) flagged Win.Trojan.VB-1668 (rule Win.Trojan.VB-1668) - 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.VBInject.11 (rule Gen:Variant.VBInject.11) - engine signal, weight 0.55, confidence 0.85
Trellix Stinger (McAfee) flagged Trojan-FAEH!05C1521499BC (rule Trojan-FAEH!05C1521499BC) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged Trojan.Win32.Vobfus.rku (rule Trojan.Win32.Vobfus.rku) - 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: 3 finding(s) elsewhere in the guest, not attributed to this sample, e.g. process hidden from a listing (rule windows.psxview.PsXView) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

38395 behavior events · 3 ATT&CK techniques · 3 dropped files.

Dropped files

C:\Users\analyst\pieusa.exe - d071533fbc19781067ef85cbd03e0edf84db634582d09f54c0b4ec803826457e
518b00dba690f81cb41b4f9fe151e2dec494dd4fef65537ab4d1a3b08ac9c4c6 - 518b00dba690f81cb41b4f9fe151e2dec494dd4fef65537ab4d1a3b08ac9c4c6
bc8ee9382dd8afa2aab60003e560f7fb49adf5eb1d49d6f69617ccac022f63e2 - bc8ee9382dd8afa2aab60003e560f7fb49adf5eb1d49d6f69617ccac022f63e2

Embedded URLs

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

Embedded domains

r.net
s1.pl
ns1.spansearcher.net
ns1.spinsearcher.org
ns1.player1352.net

Embedded IP addresses

20.42.179.204
20.184.175.17
52.123.252.248
20.247.184.197
4.230.171.124
4.144.132.223
162.159.142.9
20.184.175.9
135.234.160.245
135.234.160.244
40.84.85.40
52.148.114.188
72.145.35.98
52.110.12.48
52.110.12.40

File paths

C:\Program

More Vobfus samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report