Analysis
- max time kernel
147s - max time network
117s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
29/09/2021, 11:32
Static task
static1
Behavioral task
behavioral1
Sample
test.test.dll
Resource
win7-en-20210920
General
- Target test.test.dll
- Size 448KB
- Sample210929-nnad4aehem
- SHA256 b194eec1e599feeadfd463b06727e8b3c73a72a4c20017e5cfaf89fbf6d365c7
- MD5 879628efe6fb566fc83cb019a4d90f5d
- SHA1 b4eb4da4ed99f50c0e02b12c23b2ea65dceed706
- SHA512 4c5ec0815de1112bc633afb96f50f03bc9506246ce1e4bc6aa8c5b6690941339b16a26f33f7999ba02dc5c460f846da51b4ed2a8f041a68c4bc8991fe2cd8a1c
- MD5 SHA1 SHA512
Malware Config
Extracted
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qakbot
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402.363
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tr
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1632817399
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105.198.236.99:443
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140.82.49.12:443
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37.210.152.224:995
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89.101.97.139:443
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81.241.252.59:2078
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27.223.92.142:995
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81.250.153.227:2222
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73.151.236.31:443
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47.22.148.6:443
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122.11.220.212:2222
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120.151.47.189:443
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199.27.127.129:443
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216.201.162.158:443
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136.232.34.70:443
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76.25.142.196:443
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181.118.183.94:443
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120.150.218.241:995
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185.250.148.74:443
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95.77.223.148:443
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75.66.88.33:443
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45.46.53.140:2222
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173.25.166.81:443
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103.148.120.144:443
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173.21.10.71:2222
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186.18.205.199:995
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71.74.12.34:443
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67.165.206.193:993
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47.40.196.233:2222
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68.204.7.158:443
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24.229.150.54:995
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109.12.111.14:443
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177.130.82.197:2222
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72.252.201.69:443
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24.55.112.61:443
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24.139.72.117:443
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187.156.138.172:443
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71.80.168.245:443
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105.157.55.133:995
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82.77.137.101:995
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173.234.155.233:443
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75.188.35.168:443
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5.238.149.235:61202
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73.77.87.137:443
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182.176.112.182:443
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96.37.113.36:993
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162.244.227.34:443
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92.59.35.196:2222
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196.218.227.241:995
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68.207.102.78:443
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2.188.27.77:443
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189.210.115.207:443
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181.163.96.53:443
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75.107.26.196:465
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185.250.148.74:2222
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68.186.192.69:443
Signatures
- Loads dropped DLL 1 IoCs
pid Process 1924 regsvr32.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3864 schtasks.exe - Modifies data under HKEY_USERS 10 IoCs
description ioc Process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\550c72b9 = 6a524c0c9f8ae4ec322f68d5080068ff1a7b56b4d8b99773bf2f567ba271667ee70646c1 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\edb015dc = 1a634982b53de5adca6fb20ded98a17ced507c0973c361b053bfb4fa68a0f5e9f0cba6de461ff27d37527c47a909c1231ac49d6377a98a4e33c214d3e45c52bbeefede1dd730f9a502ee explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\a766aa64 = fb9864db2436e53688d6ed6234abca81e9956e2b251a23835a60a1f4b7e2e6097238943946a947f95b77ee96fd9c315d1e68c0d7f3a3d4fa6174fd6eef4a7072c55d3dc076eeb4b8a508a41064c9d3763568fcfd3659e7b4235413b84b1a10f3ea067d722239460cf25b0a26df8820d8f348 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\a766aa64 = fb9873db2436d0478f09f802de0193d191b317bacd6f64064a4e2b71389581e7350a2dbca8edb5a822519b1084be0a3bb275ae9545fbdc64754115ec55fa479eb0493a1b2ede5e0cfdeff1ccef7aaa6cda9d70e524c36f695023e125d4 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\92f97a2a = 3cdc49e1144eaeb99b3cdddb0d93012d26436eec0f55f29bd3efb3ed5cce0e814586b5ddd4a787c4e1deee43a7c8ffa8c0651f928855fac0af7354ea8f15c6101daf4e715e3cf322921cb530d758fa52ec5a981ebac66b22539d76fdd8ac62159ccdf98ffe95dc1fc0cc1e5f59a629d0e345a4b438ed8e86c27b85a4e0d01b320858fe50f96af4a2df745941fb48728b23db8c220ad370b347d7025712156b5b14ad54a9add5c5e6c43b31753e2d1e8169ab explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\28043d33 = 5939b4ea4e08153775e3add7f951cf7be96822c824e16e3fb19acaad6692071ce360358a0be45ca340413d08c32c764e389a875eedbff26e21ac2b167773bb87b779c4e88b268b283bec7fbfd2c44e02eef16a737a19c9a318fc0a954d3e13000d explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\2a451d4f = 861e5898839edb03bbc7b54518d965bb85c13edf6909856b explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\d82fc592 = e24bcad79d9fff19532ea6288b356b6078ef67ed33b3b3073093e56b11fe524dd4bcdb91966cfc2f9d666c212184264ac16c56c2c130bc9da660cf88157483929f6763dc26147d48a443ef01e561dfcfb094128419ef930ca8c0713f540dbcdfa4c39ef1c1a4 explorer.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Knyruvin\90b85a56 = e6e3634d7c24729ffefaa1e2a3120ea0 explorer.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3624 rundll32.exe 3624 rundll32.exe 1924 regsvr32.exe 1924 regsvr32.exe - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3624 rundll32.exe 1924 regsvr32.exe - Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 3464 wrote to memory of 3624 3464 rundll32.exe 70 PID 3464 wrote to memory of 3624 3464 rundll32.exe 70 PID 3464 wrote to memory of 3624 3464 rundll32.exe 70 PID 3624 wrote to memory of 3748 3624 rundll32.exe 71 PID 3624 wrote to memory of 3748 3624 rundll32.exe 71 PID 3624 wrote to memory of 3748 3624 rundll32.exe 71 PID 3624 wrote to memory of 3748 3624 rundll32.exe 71 PID 3624 wrote to memory of 3748 3624 rundll32.exe 71 PID 3748 wrote to memory of 3864 3748 explorer.exe 72 PID 3748 wrote to memory of 3864 3748 explorer.exe 72 PID 3748 wrote to memory of 3864 3748 explorer.exe 72 PID 4052 wrote to memory of 1924 4052 regsvr32.exe 77 PID 4052 wrote to memory of 1924 4052 regsvr32.exe 77 PID 4052 wrote to memory of 1924 4052 regsvr32.exe 77 PID 1924 wrote to memory of 4272 1924 regsvr32.exe 78 PID 1924 wrote to memory of 4272 1924 regsvr32.exe 78 PID 1924 wrote to memory of 4272 1924 regsvr32.exe 78 PID 1924 wrote to memory of 4272 1924 regsvr32.exe 78 PID 1924 wrote to memory of 4272 1924 regsvr32.exe 78 PID 4272 wrote to memory of 4264 4272 explorer.exe 79 PID 4272 wrote to memory of 4264 4272 explorer.exe 79 PID 4272 wrote to memory of 4468 4272 explorer.exe 82 PID 4272 wrote to memory of 4468 4272 explorer.exe 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\test.test.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\test.test.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3624 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
PID:3748 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn dhsdmtkgc /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\test.test.dll\"" /SC ONCE /Z /ST 11:34 /ET 11:464⤵
- Creates scheduled task(s)
PID:3864
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\??\c:\windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\test.test.dll"1⤵
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\test.test.dll"2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\Windows\system32\reg.exeC:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\ProgramData\Microsoft\Idfooobflb" /d "0"4⤵PID:4264
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C:\Windows\system32\reg.exeC:\Windows\system32\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /t REG_DWORD /v "C:\Users\Admin\AppData\Roaming\Microsoft\Iukdvyxbee" /d "0"4⤵PID:4468
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