Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
27-04-2022 17:55
Static task
static1
Behavioral task
behavioral1
Sample
e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe
Resource
win7-20220414-en
General
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Target
e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe
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Size
89KB
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MD5
223f824fbc8cacd41d0e119034c1d043
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SHA1
3b8e9eff67bc8f37431b26dbcde55e0c1767519d
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SHA256
e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf
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SHA512
849c3d8345b4fcb22afc6786052e06cfa9cb5ac853a318e91be934dbeda7a15ebc068d2d6e2f8b2ad0d7fd88e30660f71703557512175808656c64e337d688e1
Malware Config
Extracted
systembc
advertrex20.xyz:4044
gentexman37.xyz:4044
Signatures
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suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
suricata: ET MALWARE Observed SystemBC CnC Domain in DNS Query
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Executes dropped EXE 1 IoCs
Processes:
cpfurq.exepid process 3804 cpfurq.exe -
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 38 api.ipify.org 39 api.ipify.org -
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.
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Drops file in Windows directory 2 IoCs
Processes:
e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exedescription ioc process File created C:\Windows\Tasks\cpfurq.job e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe File opened for modification C:\Windows\Tasks\cpfurq.job e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4256 4304 WerFault.exe e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exepid process 4304 e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe 4304 e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe"C:\Users\Admin\AppData\Local\Temp\e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4304 -s 9642⤵
- Program crash
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C:\ProgramData\pvpaxi\cpfurq.exeC:\ProgramData\pvpaxi\cpfurq.exe start1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4304 -ip 43041⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\pvpaxi\cpfurq.exeFilesize
89KB
MD5223f824fbc8cacd41d0e119034c1d043
SHA13b8e9eff67bc8f37431b26dbcde55e0c1767519d
SHA256e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf
SHA512849c3d8345b4fcb22afc6786052e06cfa9cb5ac853a318e91be934dbeda7a15ebc068d2d6e2f8b2ad0d7fd88e30660f71703557512175808656c64e337d688e1
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C:\ProgramData\pvpaxi\cpfurq.exeFilesize
89KB
MD5223f824fbc8cacd41d0e119034c1d043
SHA13b8e9eff67bc8f37431b26dbcde55e0c1767519d
SHA256e1d879e9b873962cde3f42e555a2583eca3c135d1f63aebfbbf3dd95f77a30cf
SHA512849c3d8345b4fcb22afc6786052e06cfa9cb5ac853a318e91be934dbeda7a15ebc068d2d6e2f8b2ad0d7fd88e30660f71703557512175808656c64e337d688e1
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memory/3804-135-0x0000000003163000-0x0000000003169000-memory.dmpFilesize
24KB
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memory/3804-136-0x0000000003020000-0x0000000003029000-memory.dmpFilesize
36KB
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memory/3804-137-0x0000000000400000-0x0000000002FA2000-memory.dmpFilesize
43.6MB
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memory/4304-131-0x0000000004CE0000-0x0000000004CE9000-memory.dmpFilesize
36KB
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memory/4304-130-0x0000000003048000-0x000000000304F000-memory.dmpFilesize
28KB
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memory/4304-132-0x0000000000400000-0x0000000002FA2000-memory.dmpFilesize
43.6MB