MALICIOUS — b1f5e0b52e0ebc4440d793e6216b7bc1a43f8b3a17845798273ea5609b20a380

MALICIOUS — b1f5e0b52e0ebc4440d793e6216b7bc1a43f8b3a17845798273ea5609b20a380 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the AB9A06E4 family. 6 of 56 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

SHA-256: b1f5e0b52e0ebc4440d793e6216b7bc1a43f8b3a17845798273ea5609b20a380
SHA-1: 5d355dbd45f375e61169e61e96a022367b60c5ba
MD5: b56d4d83aaea98a18a723c77fb58eecc
imphash: 532816589b7c9c3bed0fbcc3d1503ba1
ssdeep: 3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8KmpjBFZ:o68i3odBiTl2+TCU/Y9
TLSH: T139415C7E0F2B3B02C637CA544E055F8F4022B49AA23D54485B53943DA3FFC67AA5029E
Submitted as: b1f5e0b52e0ebc4440d793e6216b7bc1a43f8b3a17845798273ea5609b20a380
File type: pe · Size: 188204 bytes
Verdict: malicious (100/100) · Family: AB9A06E4

Detections (6 of 56 engines)

ClamAV (daily): Win.Worm.Nupik-1
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
YARA: Stratosphere IPS: STRATO_Tor_Onion_C2
Microsoft Defender: Worm:Win32/Delf.BE!MTB
Emsisoft (Emergency Kit): Dropped:Generic.Malware.SV!p2p!u.AB9A06E4
Kaspersky (KVRT): P2P-Worm.Win32.VB.dz

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 17 weighted signals:

ClamAV (daily) flagged Win.Worm.Nupik-1 (rule Win.Worm.Nupik-1) - 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/Delf.BE!MTB (rule Worm:Win32/Delf.BE!MTB) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Dropped:Generic.Malware.SV!p2p!u.AB9A06E4 (rule Dropped:Generic.Malware.SV!p2p!u.AB9A06E4) - engine signal, weight 0.55, confidence 0.85
Kaspersky (KVRT) flagged P2P-Worm.Win32.VB.dz (rule P2P-Worm.Win32.VB.dz) - 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
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
Dropped a suspicious payload: BalROK.HTML - dynamic signal, weight 0.40, confidence 0.90
YARA: Stratosphere IPS flagged STRATO_Tor_Onion_C2 (rule STRATO_Tor_Onion_C2) - engine signal, weight 0.50, confidence 0.70
Contacted 2 external host(s) and 6 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
persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
Embedded network infrastructure: 3.6.1.0, 5.0.3.6 - static signal, weight 0.35, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Extracted generic config (2 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
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)

14163 behavior events · 3 ATT&CK techniques · 11 dropped files.

Dropped files

C:\Windows\SHARE_TEMP\Icon12.ico - 67bc1cd876f5059789b0dc8dc16c0b2155e55aca8d1c8439d70c8882e1875740
C:\Windows\winhash_up.exe - 0ae6e26ea333fd5eb72c483647e7cc8f92250f8f71c4a926abcca69c54028d19
C:\BalROK.HTML - 3959c5532031a58119c317dda15ac9313505df4a92c004cd2e76b071b0fad4a4
C:\Windows\SHARE_TEMP\Icon6.ico - 0df5c718b7aee9f045f804f6a53cb0727f66e1ac1df612c6ecf342aed81ce130
C:\Windows\SHARE_TEMP\Icon2.ico - 00a339ff5338d0cfe91b262175eef4e5fd07f9d28e8f980a1f5ff43a5a81e597
C:\Windows\SHARE_TEMP\Icon7.ico - 71acc5a88debfdba0eed23272ef4b09fd6609eeb4b1ec457c72444472ad8b3a4
C:\Windows\SHARE_TEMP\Icon3.ico - d2770f68db717c5335ceca3f2b0be1e294839a4904d3525f4c5e9847654d39c2
C:\Windows\bugMAKER.bat - 07dcc92aa05c6ec0c005a54a6c3881248be1772e828e48f55c62513036407a9d
C:\Windows\SHARE_TEMP\Icon14.ico - adb0b5eb4fcfcc55c40eaa2ba3d142ed413293b2212bb2a1ddd8ed062db004bf
C:\Windows\SHARE_TEMP\Icon10.ico - 76f05dd79b2d3a08baf928e4811b0f179e96ac351ff8007f2e24f5fbb4b95253
C:\Windows\SHARE_TEMP\Icon5.ico - 462d333fc849166df8cb4e9ba6edd8404f4d79ebcd535125ecb5e8fe9d2cc0e0

Embedded URLs

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

Embedded IP addresses

3.6.1.0
5.0.3.6
4.150.223.115
52.230.60.54
4.230.171.124
74.178.240.51
57.155.101.212
20.42.65.84
20.165.94.63
172.66.2.5
52.110.12.28
52.110.12.11
135.233.45.222
52.148.114.188
52.110.12.8
52.110.12.2
72.154.7.114

File paths

C:\Programme\eMule

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report