Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
08-03-2021 15:12
Static task
static1
Behavioral task
behavioral1
Sample
2.cry.dll
Resource
win7v20201028
General
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Target
2.cry.dll
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Size
419KB
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MD5
5af074c9bec5f91119e5deac1964207a
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SHA1
c2ea2dbcf5393dbc02fb5a8f8040b80aee8d546d
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SHA256
68eb43b8e87657e66f8b25400926f55498bfde185252ee24eb068928d698e90d
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SHA512
dbfdb8145992efe00f9f8d1a82da9113ec722a6e5a135b652c087400cb75a05a7323314ec26f82d3b0483b65213e00f4309d25770c272b2db419dedb0f062089
Malware Config
Extracted
trickbot
100013
rob72
103.225.138.94:449
122.2.28.70:449
123.200.26.246:449
131.255.106.152:449
142.112.79.223:449
154.126.176.30:449
180.92.238.186:449
187.20.217.129:449
201.20.118.122:449
202.91.41.138:449
95.210.118.90:449
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autorunName:pwgrab
Signatures
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Templ.dll packer 3 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral1/memory/876-4-0x00000000002B0000-0x00000000002E9000-memory.dmp templ_dll behavioral1/memory/876-5-0x0000000000420000-0x0000000000457000-memory.dmp templ_dll behavioral1/memory/876-6-0x0000000000270000-0x00000000002A6000-memory.dmp templ_dll -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 icanhazip.com 10 myexternalip.com -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 804 wermgr.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 876 1924 rundll32.exe rundll32.exe PID 876 wrote to memory of 1688 876 rundll32.exe cmd.exe PID 876 wrote to memory of 1688 876 rundll32.exe cmd.exe PID 876 wrote to memory of 1688 876 rundll32.exe cmd.exe PID 876 wrote to memory of 1688 876 rundll32.exe cmd.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe PID 876 wrote to memory of 804 876 rundll32.exe wermgr.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2.cry.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2.cry.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
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/804-8-0x0000000000000000-mapping.dmp
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memory/804-12-0x0000000000060000-0x0000000000088000-memory.dmpFilesize
160KB
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memory/804-13-0x00000000000A0000-0x00000000000A1000-memory.dmpFilesize
4KB
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memory/876-2-0x0000000000000000-mapping.dmp
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memory/876-3-0x0000000075AE1000-0x0000000075AE3000-memory.dmpFilesize
8KB
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memory/876-4-0x00000000002B0000-0x00000000002E9000-memory.dmpFilesize
228KB
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memory/876-5-0x0000000000420000-0x0000000000457000-memory.dmpFilesize
220KB
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memory/876-6-0x0000000000270000-0x00000000002A6000-memory.dmpFilesize
216KB
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memory/876-7-0x0000000000460000-0x00000000004A3000-memory.dmpFilesize
268KB
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memory/876-9-0x0000000010000000-0x0000000010037000-memory.dmpFilesize
220KB
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memory/876-10-0x0000000000310000-0x0000000000311000-memory.dmpFilesize
4KB
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memory/876-11-0x0000000000221000-0x0000000000223000-memory.dmpFilesize
8KB