Analysis
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max time kernel
87s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20231201-en -
resource tags
arch:x64arch:x86image:win10v2004-20231201-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2023 03:02
Static task
static1
Behavioral task
behavioral1
Sample
Ref 01-550-1907 m.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
Ref 01-550-1907 m.exe
Resource
win10v2004-20231201-en
General
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Target
Ref 01-550-1907 m.exe
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Size
1.9MB
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MD5
f38e9e0c4766c0333bea51d01bbc0953
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SHA1
41355f4c618b0681205251919b2f70534a77bb5b
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SHA256
4ca412a3a073c7d656b03710912f8f6386e3613bc76af5ebb20986ff9a94e9f9
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SHA512
822e7da1b0fd4aac2e2fd9281a2c802f8d607fe45535a03d9f329d35f3836d461b7d8e548ec951502b4401cd56ef6227febd087ed30f8b14fcf3c3bc35be7e9b
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SSDEEP
49152:Ad8fIwCjykkGo5ITnLK+Ey9S1qXtfRGHKpk3H8eiTwHFimH9jIrMKSIa+GGXHIft:AdoIwkkrITnG69S1qXtfRGHKpk3H8ei4
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2464-2-0x0000000003FD0000-0x0000000004FD0000-memory.dmp modiloader_stage2 -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Ref 01-550-1907 m.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2192493100-457715857-1189582111-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fsqijjno = "C:\\Users\\Public\\Fsqijjno.url" Ref 01-550-1907 m.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1116 2464 WerFault.exe Ref 01-550-1907 m.exe -
Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 27 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 29 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Ref 01-550-1907 m.exepid process 2464 Ref 01-550-1907 m.exe 2464 Ref 01-550-1907 m.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
SndVol.exepid process 4652 SndVol.exe -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
SndVol.exepid process 4652 SndVol.exe 4652 SndVol.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
Ref 01-550-1907 m.exedescription pid process target process PID 2464 wrote to memory of 4652 2464 Ref 01-550-1907 m.exe SndVol.exe PID 2464 wrote to memory of 4652 2464 Ref 01-550-1907 m.exe SndVol.exe PID 2464 wrote to memory of 4652 2464 Ref 01-550-1907 m.exe SndVol.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Ref 01-550-1907 m.exe"C:\Users\Admin\AppData\Local\Temp\Ref 01-550-1907 m.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\SndVol.exeC:\Windows\System32\SndVol.exe2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 17922⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2464 -ip 24641⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2464-0-0x00000000008B0000-0x00000000008B1000-memory.dmpFilesize
4KB
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memory/2464-1-0x0000000003FD0000-0x0000000004FD0000-memory.dmpFilesize
16.0MB
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memory/2464-2-0x0000000003FD0000-0x0000000004FD0000-memory.dmpFilesize
16.0MB
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memory/2464-4-0x0000000000400000-0x00000000005E0000-memory.dmpFilesize
1.9MB