Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
30-09-2021 16:08
Static task
static1
Behavioral task
behavioral1
Sample
a5c8870f3c8c0d933420f04e24b6bbdf.dll
Resource
win7-en-20210920
General
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Target
a5c8870f3c8c0d933420f04e24b6bbdf.dll
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Size
471KB
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MD5
a5c8870f3c8c0d933420f04e24b6bbdf
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SHA1
4478b0c7d641a2c67bbd040ae19a59b7a1d2b485
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SHA256
a9457a1ad7aef20eae672a7e3fb51d6904a72df826e810c5aa30dde9e1b68cb0
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SHA512
ed6eccf6d9ff904776114e57cf9f11fe1a54facd3189ae51f54731f467fd293efb3d7739dd99a4d21fe2e207b6f14fca1430d66022615eafd3e94fcf967d5516
Malware Config
Extracted
qakbot
402.363
tr
1632817399
105.198.236.99:443
140.82.49.12:443
37.210.152.224:995
89.101.97.139:443
81.241.252.59:2078
27.223.92.142:995
81.250.153.227:2222
73.151.236.31:443
47.22.148.6:443
122.11.220.212:2222
120.151.47.189:443
199.27.127.129:443
216.201.162.158:443
136.232.34.70:443
76.25.142.196:443
181.118.183.94:443
120.150.218.241:995
185.250.148.74:443
95.77.223.148:443
75.66.88.33:443
45.46.53.140:2222
173.25.166.81:443
103.148.120.144:443
173.21.10.71:2222
186.18.205.199:995
71.74.12.34:443
67.165.206.193:993
47.40.196.233:2222
68.204.7.158:443
24.229.150.54:995
109.12.111.14:443
177.130.82.197:2222
72.252.201.69:443
24.55.112.61:443
24.139.72.117:443
187.156.138.172:443
71.80.168.245:443
105.157.55.133:995
82.77.137.101:995
173.234.155.233:443
75.188.35.168:443
5.238.149.235:61202
73.77.87.137:443
182.176.112.182:443
96.37.113.36:993
162.244.227.34:443
92.59.35.196:2222
196.218.227.241:995
68.207.102.78:443
2.188.27.77:443
189.210.115.207:443
181.163.96.53:443
75.107.26.196:465
185.250.148.74:2222
68.186.192.69:443
Signatures
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Loads dropped DLL 1 IoCs
Processes:
regsvr32.exepid process 520 regsvr32.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 10 IoCs
Processes:
explorer.exedescription ioc process Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\d55c70d6 = d93c50d0b21e33599225ad1c07aa9140c8f6450fdba6113c0b0453de01da5400828a139a2f7c19deed6b121f5c5b94b688d0afe99ce2f23936476efa9e414fbb91d6eddb52a8e0736ff8174d8867ed3252a8ef92 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\6de017b3 = b853492a6670611000198fc4ae1da1f1ca920d3a2383a68892e9e37d468f8793a4c904e83fdc18d4a0b0 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\10e85839 = 8d371635b8821384d0b72a41bbe665acf3fb938b0264f5c1b81c16d59351eef160b9a46d9826236426bf493ee8bfa97f2d4d56d13deb42db0912d093df6bb5bab6ddcb832aa89a1194005f137cda12e1cc3a245717bce9e93f2e88ca2304f22e4a1348 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\a8543f5c = c76932d63b1ae59ac4f6626564e8d555c28b40bc7d3633 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\e28280e4 = 84ce7b6b443fe98612ff4b4cb50864587577eec525c849964f3e090e6b45be0c019982a3096b explorer.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\e28280e4 = 84ce6c6b443fdc7b0771047cbb0e6d0d3e explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\d71d50aa = 302768cba02f0ab77c1dd6229ea54ba03dde4f3ff1eeb5cdb1ff073a6d6f4f455a270f59d883a7c7b5fad6843b002f2315197d1029722bdddfb9a7bfa02783a4a4bd4dab0ced9fb54728a06c16c8f4654e4fd83826b0a6421105b612db93361dfb6060376db56c22bdd87e9ec29bf628257e2cf9d251413d1dad39d8588c5153f80612f93e158f113d7b7db907b8d3308a00bf8bc101930c8c9a30428e727bbdc92af64981e310787cfc836d40db571033165c414ecf1fead94fa4 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\6fa137cf = cc77a998747e95bdf6571f0d387c7829b88166a56658ed8e64b5afeb514ed399f9ed2861bbff202251c447780ca10898b1f89fc198260d85ecd438a914cb084ae801d53f330f8c188e581ba5a53f1d013a16fb63e06222c5c00e14a0f4538f46b3 explorer.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Fljwutswf\9dcbef12 = 9f702b4f70a72a4a4ddb23f98464f408c32066f782b7b9548d74f6480d61a6ba4e8697d9c77e37dd0f895fa58481 explorer.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exeregsvr32.exepid process 2164 rundll32.exe 2164 rundll32.exe 520 regsvr32.exe 520 regsvr32.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
rundll32.exeregsvr32.exepid process 2164 rundll32.exe 520 regsvr32.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
rundll32.exerundll32.exeexplorer.exeregsvr32.exeregsvr32.exeexplorer.exedescription pid process target process PID 2056 wrote to memory of 2164 2056 rundll32.exe rundll32.exe PID 2056 wrote to memory of 2164 2056 rundll32.exe rundll32.exe PID 2056 wrote to memory of 2164 2056 rundll32.exe rundll32.exe PID 2164 wrote to memory of 2660 2164 rundll32.exe explorer.exe PID 2164 wrote to memory of 2660 2164 rundll32.exe explorer.exe PID 2164 wrote to memory of 2660 2164 rundll32.exe explorer.exe PID 2164 wrote to memory of 2660 2164 rundll32.exe explorer.exe PID 2164 wrote to memory of 2660 2164 rundll32.exe explorer.exe PID 2660 wrote to memory of 2704 2660 explorer.exe schtasks.exe PID 2660 wrote to memory of 2704 2660 explorer.exe schtasks.exe PID 2660 wrote to memory of 2704 2660 explorer.exe schtasks.exe PID 1264 wrote to memory of 520 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 520 1264 regsvr32.exe regsvr32.exe PID 1264 wrote to memory of 520 1264 regsvr32.exe regsvr32.exe PID 520 wrote to memory of 944 520 regsvr32.exe explorer.exe PID 520 wrote to memory of 944 520 regsvr32.exe explorer.exe PID 520 wrote to memory of 944 520 regsvr32.exe explorer.exe PID 520 wrote to memory of 944 520 regsvr32.exe explorer.exe PID 520 wrote to memory of 944 520 regsvr32.exe explorer.exe PID 944 wrote to memory of 1320 944 explorer.exe reg.exe PID 944 wrote to memory of 1320 944 explorer.exe reg.exe PID 944 wrote to memory of 2936 944 explorer.exe reg.exe PID 944 wrote to memory of 2936 944 explorer.exe reg.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dll,#12⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn wtapbwvimu /tr "regsvr32.exe -s \"C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dll\"" /SC ONCE /Z /ST 16:10 /ET 16:224⤵
- Creates scheduled task(s)
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\??\c:\windows\system32\regsvr32.exeregsvr32.exe -s "C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dll"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe-s "C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dll"2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
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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:\ProgramData\Microsoft\Ywsuhcimadwg" /d "0"4⤵
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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\Prnstellldu" /d "0"4⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dllMD5
a5c8870f3c8c0d933420f04e24b6bbdf
SHA14478b0c7d641a2c67bbd040ae19a59b7a1d2b485
SHA256a9457a1ad7aef20eae672a7e3fb51d6904a72df826e810c5aa30dde9e1b68cb0
SHA512ed6eccf6d9ff904776114e57cf9f11fe1a54facd3189ae51f54731f467fd293efb3d7739dd99a4d21fe2e207b6f14fca1430d66022615eafd3e94fcf967d5516
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\Users\Admin\AppData\Local\Temp\a5c8870f3c8c0d933420f04e24b6bbdf.dllMD5
a5c8870f3c8c0d933420f04e24b6bbdf
SHA14478b0c7d641a2c67bbd040ae19a59b7a1d2b485
SHA256a9457a1ad7aef20eae672a7e3fb51d6904a72df826e810c5aa30dde9e1b68cb0
SHA512ed6eccf6d9ff904776114e57cf9f11fe1a54facd3189ae51f54731f467fd293efb3d7739dd99a4d21fe2e207b6f14fca1430d66022615eafd3e94fcf967d5516
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memory/520-129-0x0000000003840000-0x0000000003841000-memory.dmpFilesize
4KB
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memory/520-128-0x0000000010000000-0x0000000010081000-memory.dmpFilesize
516KB
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memory/520-125-0x0000000000000000-mapping.dmp
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memory/944-130-0x0000000000000000-mapping.dmp
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memory/944-135-0x0000000002A00000-0x0000000002A21000-memory.dmpFilesize
132KB
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memory/1320-131-0x0000000000000000-mapping.dmp
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memory/2164-118-0x0000000002910000-0x0000000002A5A000-memory.dmpFilesize
1.3MB
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memory/2164-117-0x0000000010000000-0x0000000010081000-memory.dmpFilesize
516KB
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memory/2164-116-0x0000000010000000-0x0000000010021000-memory.dmpFilesize
132KB
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memory/2164-115-0x0000000000000000-mapping.dmp
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memory/2660-123-0x0000000002C80000-0x0000000002CA1000-memory.dmpFilesize
132KB
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memory/2660-119-0x0000000000000000-mapping.dmp
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memory/2704-120-0x0000000000000000-mapping.dmp
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memory/2936-132-0x0000000000000000-mapping.dmp