Analysis
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max time kernel
585s -
max time network
594s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
28-07-2021 11:53
Static task
static1
Behavioral task
behavioral1
Sample
porto.pdf.dll
Resource
win7v20210408
General
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Target
porto.pdf.dll
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Size
617KB
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MD5
8dd7c961c9cdbd69e9a5d86d7809fc50
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SHA1
f9765d2e54784151519b6d755118edd01e55c51d
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SHA256
6e057855e21f4c93a4e3825b9711ca07ccec94fed55dbc20e1d3316b2b3dc549
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SHA512
9cf38f34bf574839f7404918f4fc8503bfd0a52d22e505972ebabc098e4854b661e42bb0f391bb293735494739f74d565b9256a35079c8dfb11fba3dfdcd6cfa
Malware Config
Extracted
trickbot
100018
rob112
38.110.103.124:443
185.56.76.28:443
204.138.26.60:443
60.51.47.65:443
74.85.157.139:443
68.69.26.182:443
38.110.103.136:443
38.110.103.18:443
138.34.28.219:443
185.56.76.94:443
217.115.240.248:443
24.162.214.166:443
80.15.2.105:443
154.58.23.192:443
38.110.100.104:443
45.36.99.184:443
185.56.76.108:443
185.56.76.72:443
138.34.28.35:443
97.83.40.67:443
38.110.103.113:443
38.110.100.142:443
184.74.99.214:443
103.105.254.17:443
62.99.76.213:443
82.159.149.52:443
38.110.100.33:443
38.110.100.242:443
185.13.79.3:443
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autorunName:pwgrabbName:pwgrabc
Signatures
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suricata: ET MALWARE Trickbot Checkin Response
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suricata: ET MALWARE Win32/Trickbot Data Exfiltration
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Blocklisted process makes network request 4 IoCs
Processes:
cmd.execmd.exeflow pid process 33 3696 cmd.exe 34 3696 cmd.exe 35 3696 cmd.exe 36 3192 cmd.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 19 ipinfo.io -
Discovers systems in the same network 1 TTPs 2 IoCs
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Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
Processes:
ipconfig.exepid process 1864 ipconfig.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
cmd.execmd.execmd.exepid process 3696 cmd.exe 3696 cmd.exe 3808 cmd.exe 3808 cmd.exe 3808 cmd.exe 3808 cmd.exe 3192 cmd.exe 3192 cmd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
wermgr.execmd.execmd.exedescription pid process Token: SeDebugPrivilege 3172 wermgr.exe Token: SeDebugPrivilege 3696 cmd.exe Token: SeDebugPrivilege 3808 cmd.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
rundll32.exerundll32.exewermgr.exedescription pid process target process PID 992 wrote to memory of 1924 992 rundll32.exe rundll32.exe PID 992 wrote to memory of 1924 992 rundll32.exe rundll32.exe PID 992 wrote to memory of 1924 992 rundll32.exe rundll32.exe PID 1924 wrote to memory of 2240 1924 rundll32.exe cmd.exe PID 1924 wrote to memory of 2240 1924 rundll32.exe cmd.exe PID 1924 wrote to memory of 2240 1924 rundll32.exe cmd.exe PID 1924 wrote to memory of 3172 1924 rundll32.exe wermgr.exe PID 1924 wrote to memory of 3172 1924 rundll32.exe wermgr.exe PID 1924 wrote to memory of 3172 1924 rundll32.exe wermgr.exe PID 1924 wrote to memory of 3172 1924 rundll32.exe wermgr.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe PID 3172 wrote to memory of 3696 3172 wermgr.exe cmd.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\porto.pdf.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\porto.pdf.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe3⤵
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe4⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\system32\cmd.exe/c ipconfig /all5⤵
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C:\Windows\system32\ipconfig.exeipconfig /all6⤵
- Gathers network information
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C:\Windows\system32\cmd.exe/c net config workstation5⤵
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C:\Windows\system32\net.exenet config workstation6⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 config workstation7⤵
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C:\Windows\system32\cmd.exe/c net view /all5⤵
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C:\Windows\system32\net.exenet view /all6⤵
- Discovers systems in the same network
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C:\Windows\system32\cmd.exe/c net view /all /domain5⤵
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C:\Windows\system32\net.exenet view /all /domain6⤵
- Discovers systems in the same network
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C:\Windows\system32\cmd.exe/c nltest /domain_trusts5⤵
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C:\Windows\system32\nltest.exenltest /domain_trusts6⤵
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C:\Windows\system32\cmd.exe/c nltest /domain_trusts /all_trusts5⤵
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C:\Windows\system32\nltest.exenltest /domain_trusts /all_trusts6⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/184-150-0x0000000000000000-mapping.dmp
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memory/932-149-0x0000000000000000-mapping.dmp
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memory/996-153-0x0000000000000000-mapping.dmp
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memory/1120-146-0x0000000000000000-mapping.dmp
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memory/1144-147-0x0000000000000000-mapping.dmp
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memory/1816-155-0x0000000000000000-mapping.dmp
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memory/1852-154-0x0000000000000000-mapping.dmp
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memory/1864-145-0x0000000000000000-mapping.dmp
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memory/1924-125-0x0000000001001000-0x0000000001003000-memory.dmpFilesize
8KB
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memory/1924-114-0x0000000000000000-mapping.dmp
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memory/1924-115-0x00000000045B0000-0x00000000045EB000-memory.dmpFilesize
236KB
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memory/1924-118-0x00000000045F0000-0x0000000004629000-memory.dmpFilesize
228KB
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memory/1924-120-0x0000000004760000-0x0000000004797000-memory.dmpFilesize
220KB
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memory/1924-122-0x0000000004430000-0x000000000463E000-memory.dmpFilesize
2.1MB
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memory/1924-123-0x00000000047A0000-0x00000000047E4000-memory.dmpFilesize
272KB
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memory/1924-124-0x0000000004640000-0x0000000004641000-memory.dmpFilesize
4KB
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memory/2056-152-0x0000000000000000-mapping.dmp
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memory/2180-151-0x0000000000000000-mapping.dmp
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memory/3172-126-0x0000000000000000-mapping.dmp
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memory/3172-127-0x000001FB96580000-0x000001FB965A8000-memory.dmpFilesize
160KB
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memory/3172-128-0x000001FB965C0000-0x000001FB965C1000-memory.dmpFilesize
4KB
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memory/3192-141-0x0000000180000000-0x0000000180009000-memory.dmpFilesize
36KB
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memory/3192-140-0x0000000000000000-mapping.dmp
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memory/3232-148-0x0000000000000000-mapping.dmp
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memory/3236-144-0x0000000000000000-mapping.dmp
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memory/3548-156-0x0000000000000000-mapping.dmp
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memory/3696-132-0x0000025708230000-0x0000025708231000-memory.dmpFilesize
4KB
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memory/3696-131-0x0000000000000000-mapping.dmp
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memory/3808-136-0x0000000000000000-mapping.dmp