MALICIOUS — af01123238d029ec7ec9da0d99ef5fca7fb92e2a722fc2652aa9b8137fd3aea2
MALICIOUS — af01123238d029ec7ec9da0d99ef5fca7fb92e2a722fc2652aa9b8137fd3aea2 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Bulz family. 9 of 55 detection engines flagged it, exhibiting 7 ATT&CK techniques.
Identification
- SHA-256:
af01123238d029ec7ec9da0d99ef5fca7fb92e2a722fc2652aa9b8137fd3aea2 - SHA-1:
343421e9ee7b36637421746d97e3fce5549b42c7 - MD5:
0b834e34751c62662cc8bd4605e8c519 - imphash:
1e58427826d059c34cbf4b958693e4c4 - ssdeep:
12288:TaWzgMg7v3qnCiMErQohh0F4CCJ8lnyz3/06:WaHMv6Corjqnyz3/06 - TLSH:
T1E550A0A12135A73BD2B2E77868705BCF20B771AC11F919D85283C1EC31F5CAB942259B - Submitted as: af01123238d029ec7ec9da0d99ef5fca7fb92e2a722fc2652aa9b8137fd3aea2
- File type: pe · Size: 755979 bytes
- Verdict: malicious (100/100) · Family: Bulz
Detections (9 of 55 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- capa (capabilities): capability:collection/keylog
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Bulz-9940102-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Microsoft Defender: Trojan:Win32/AutoitGenome!pz
- Emsisoft (Emergency Kit): Gen:Variant.Tedy.850583
- Kaspersky (KVRT): Trojan-Downloader.Win32.Agent.gpyl
MITRE ATT&CK
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.Malware.Bulz-9940102-0 (rule
Win.Malware.Bulz-9940102-0) - 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 - 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 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 33 external host(s) at runtime (34 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- 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_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX - static signal, weight 0.25, confidence 0.55
- enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - 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
Dynamic analysis (windows)
28821 behavior events · 2 ATT&CK techniques · 10 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- w347302.s98.ufhosted.com
- www.aamailsoft.com
- x2.c.lencr.org
- ye.c.lencr.org
- ye1.c.lencr.org
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
Dropped files
- C:\Program Files\Managemenot\Monitor\tcpscrex.exe -
24de381436d323458958cf8d5735f2228a710842216dfe2cf8b98e70bc3d6090 - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\1B1495DD322A24490E2BF2FAABAE1C61 -
12fd0590708bb38d8039bc994178acee8a3d220f0cd194b0f1c2fc9ba622f927 - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\A98697D5B8F6004055813FBF550F3D0F -
8e20266e3d0248c15ec2bcd972a408e97669d086f0ee3cf2fd61331f23b396a3 - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751 -
3dd5ea8a14eb665ba6057d424f94e5e83757ffaab456578dbf038af04053b19e - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751 -
6aa27aa5c488697198ff27b2218442069ff4797bd980d5f1b2182bf7801498c3 - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\1B1495DD322A24490E2BF2FAABAE1C61 -
c3d2d648a554077745d3519c44d84ff1b74701e252c652fc6c7a6f2695a67107 - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\22D536C4B4AD2CEF7AC6B7789FD235E3 -
251ed08cc8f5873098ea5ee083034e7cd99ece955920e12a42e50306a94cb6eb - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\A98697D5B8F6004055813FBF550F3D0F -
ebbc9e9004e3d7adf7e70238e74b2a48c842406b28b6e33544ffa4bbdab0e0ad - C:\Users\analyst\AppData\Local\Microsoft\Windows\INetCache\IE\9G746KYB\getip[1].htm -
9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\22D536C4B4AD2CEF7AC6B7789FD235E3 -
117ea95d42d1c463d9c69b0495981f33262f9fb0802e64d2640a9da5a35538ce
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787763715&P2=404&P3=2&P4=J%2bc9aPV35VH8Bvpr0xDnQuP5GzOipkJ9dBaLcwXVdBuKphVVYX4hwgJMPSz5dz3Z6llnH8qtZ5BN%2fidXxON1qQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://w347302.s98.ufhosted.com/getip.asp
- http://www.aamailsoft.com/getip.php
- http://x2.c.lencr.org/
- http://ye.c.lencr.org/
- http://ye1.c.lencr.org/10.crl
- http://W347302.S98.Ufhosted.Com/NC/UP/Down.txt
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787763776&P2=404&P3=2&P4=H%2bU5Mu0x%2f6gy4JAcMOfZ3VpWyqF5T68UxVH97CrYmy6P24pu3SVmGVYMeRaRIXlq%2fe0HYIYCvXjlgzEzsiMCkA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- autoitscript.com
- w347302.s98.ufhosted.com
- www.aamailsoft.com
- x1.c.lencr.org
- x2.c.lencr.org
- ye.c.lencr.org
- ye1.c.lencr.org
Embedded IP addresses
- 20.42.65.93
- 52.123.252.240
- 20.184.175.1
- 52.123.252.193
- 4.230.171.124
- 172.215.188.225
- 52.253.84.76
- 52.230.59.222
- 135.233.95.144
- 52.123.252.203
- 74.178.232.29
- 74.178.240.51
- 4.150.223.105
- 135.232.92.137
- 203.26.79.13
- 20.236.44.162
- 40.99.133.210
- 52.123.128.14
- 162.159.142.9
- 135.234.160.245
- 101.227.111.7
- 57.154.63.210
- 66.175.209.193
- 104.18.20.213
- 52.110.12.54
More Bulz samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report