MALICIOUS — c49aabcf3b25d2711ac9802bb4a51db5f2d0c5cd00744ff74c0bdbd0c3f163c3

MALICIOUS — c49aabcf3b25d2711ac9802bb4a51db5f2d0c5cd00744ff74c0bdbd0c3f163c3 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Nimnul family. 7 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

SHA-256: c49aabcf3b25d2711ac9802bb4a51db5f2d0c5cd00744ff74c0bdbd0c3f163c3
SHA-1: 566823334584f872d08a5764accc3388ba5af1b0
MD5: 6c4563a53d4303e89a758a9f414dd024
imphash: e38062877caac65585afa2d2c3200df4
ssdeep: 768:WV29n/P4/CSoY+gJXiVQGPL4vzZq2o9W7GsxBbPr:FPZhYriSGCq2iW7z
TLSH: T1752DBFCE0B543E89D9CAD912F4848F1C2B07EAAC2639758C6903E52F517096B6C29F4C
Submitted as: c49aabcf3b25d2711ac9802bb4a51db5f2d0c5cd00744ff74c0bdbd0c3f163c3
File type: pe · Size: 28672 bytes
Verdict: malicious (100/100) · Family: Nimnul

Detections (7 of 52 engines)

ClamAV (daily): Win.Malware.Wapomi-10020301-0
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
Kaspersky (KVRT): Virus.Win32.Nimnul.f
Microsoft Defender: Virus:Win32/Mikcer.B
Emsisoft (Emergency Kit): Win32.VJadtre.3
Trellix Stinger (McAfee): Trojan-FVWC!6C4563A53D43

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 10 weighted signals:

ClamAV (daily) flagged Win.Malware.Wapomi-10020301-0 (rule Win.Malware.Wapomi-10020301-0) - engine signal, weight 0.90, confidence 0.95
Dropped a malicious payload (Madeba): 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07 - dynamic signal, weight 0.80, confidence 0.90
Kaspersky (KVRT) flagged Virus.Win32.Nimnul.f (rule Virus.Win32.Nimnul.f) - 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
1 behavioral detection(s): Windows Service Installation [medium] (rule tl-service-install) - dynamic signal, weight 0.40, confidence 0.90
Contacted 34 external host(s) at runtime (13 HTTP) - network signal, weight 0.40, confidence 0.80
YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70
YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule YR_Packer_ASPack_MPRESS) - engine signal, weight 0.35, confidence 0.70
communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
Observed at runtime: Modify Registry (T1112) (rule Modify Registry) - dynamic signal, weight 0.12, confidence 0.90

Dynamic analysis (windows)

13128 behavior events · 2 ATT&CK techniques · 50 dropped files.

Dropped files

/opt/CAPEv2/storage/analyses/9923/files/4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07 - 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
/opt/CAPEv2/storage/analyses/9923/files/db25ce8f160c85f3a26aa94ca1da8488d079d76cf138779222fc9b6aa4bc8c03 - db25ce8f160c85f3a26aa94ca1da8488d079d76cf138779222fc9b6aa4bc8c03
/opt/CAPEv2/storage/analyses/9923/files/0e03675850241d06080af9ec470649ca4a006222c4ff5d1b05029f1751fecf91 - 0e03675850241d06080af9ec470649ca4a006222c4ff5d1b05029f1751fecf91
/opt/CAPEv2/storage/analyses/9923/files/bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5 - bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5
/opt/CAPEv2/storage/analyses/9923/files/920fb0937f8a9d345830865059b6ae3f35ab6803ad4cffef4447473ec18e17a0 - 920fb0937f8a9d345830865059b6ae3f35ab6803ad4cffef4447473ec18e17a0
/opt/CAPEv2/storage/analyses/9923/files/d85a7a49546591ef89d3a54f8cb6a6f29e500e57527b2219e859ba9f47374936 - d85a7a49546591ef89d3a54f8cb6a6f29e500e57527b2219e859ba9f47374936
/opt/CAPEv2/storage/analyses/9923/files/f19afa9bbf2ef0308f37ce6cb87cb3c59eb2d1685e08d8b15fd197dda813f379 - f19afa9bbf2ef0308f37ce6cb87cb3c59eb2d1685e08d8b15fd197dda813f379
/opt/CAPEv2/storage/analyses/9923/files/079771f6478bb63f24119685df1262ea2735295a3022ba6c1d509650800797e4 - 079771f6478bb63f24119685df1262ea2735295a3022ba6c1d509650800797e4
/opt/CAPEv2/storage/analyses/9923/files/bbb3de5707629e6a60a0c238cd477b28f07f0066982fda953fa6fcec39073a4a - bbb3de5707629e6a60a0c238cd477b28f07f0066982fda953fa6fcec39073a4a
/opt/CAPEv2/storage/analyses/9923/files/81bac677e834253ae60125ed1be64b1ed0cf25adacaee3fd70a4000b8d5bd508 - 81bac677e834253ae60125ed1be64b1ed0cf25adacaee3fd70a4000b8d5bd508
/opt/CAPEv2/storage/analyses/9923/files/249b0d96ae8bc49c773c0054b8a6d05f689cbcd9abc9572d30bfb2a2bac36b1a - 249b0d96ae8bc49c773c0054b8a6d05f689cbcd9abc9572d30bfb2a2bac36b1a
/opt/CAPEv2/storage/analyses/9923/files/e91dc258304b42180887679f892e47587a8d67d1140ffb3e8acf79deb95cdb9c - e91dc258304b42180887679f892e47587a8d67d1140ffb3e8acf79deb95cdb9c
/opt/CAPEv2/storage/analyses/9923/files/7e42b39d55f1ad07551daedacb1d0191c4b9cefeadf0008766819626bac923c1 - 7e42b39d55f1ad07551daedacb1d0191c4b9cefeadf0008766819626bac923c1
/opt/CAPEv2/storage/analyses/9923/files/81a618f21cb87db9076134e70388b6e9cb7c2106739011b6a51772d22cae06b7 - 81a618f21cb87db9076134e70388b6e9cb7c2106739011b6a51772d22cae06b7
/opt/CAPEv2/storage/analyses/9923/files/62aab98528514ce16def0b896fe9b756bd8f2589e641f2da204380fc08e75297 - 62aab98528514ce16def0b896fe9b756bd8f2589e641f2da204380fc08e75297

Embedded URLs

http://www.msftconnecttest.com/connecttest.txt
http://203.26.79.13/filestreamingservice//files/736bdc20-582e-46c5-ba31-d31d3d97258e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/736bdc20-582e-46c5-ba31-d31d3d97258e?P1=1786436365&P2=404&P3=2&P4=kXoLAp%2bB5yd%2fEKpXcK3gm7kEZiWhebhNEZyqriWC%2f1hMAB3mBaBNBXkUGH%2btmhiFs%2f7oSTKO84iNmk%2b8H4XJ4Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice//files/c48ae315-f580-4b6c-801e-58a0f885749d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
http://203.26.79.13/filestreamingservice/files/c48ae315-f580-4b6c-801e-58a0f885749d?P1=1786436398&P2=404&P3=2&P4=CnKvr3oqxZk6vavsdUjSYxv6G%2fmybZhz9ChLQn%2b0JvqWsveVvKf%2bCGJwJo73UTNkCzYmS7dV54R%2bv28o6XgmPQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com

Embedded domains

ddos.dnsnb8.net

Embedded IP addresses

74.179.71.159
20.42.73.24
40.84.97.4
4.230.171.124
52.230.60.54
52.230.59.222
203.26.79.13
92.223.78.30
135.232.92.137
74.179.77.164
51.104.15.252
172.178.240.162
3.229.117.57
52.123.252.243
74.178.232.29
52.123.252.195
72.154.7.110
52.148.114.188
52.110.12.53
52.110.12.51

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report