Analysis
- max time kernel
152s - max time network
150s - platform
windows10_x64 - resource
win10-en - submitted
02/09/2021, 14:08
General
- Target 009547789723_pdf.exe
- Size 696KB
- Sample210902-rfmk8sdcak
- SHA256 a49278e32de8c758012e44c3519591a7997b261e453827ff7b11158786563430
Malware Config
Extracted
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xloader
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2.3
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zrmt
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http://www.xcwwjzsb.com/zrmt/
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wesmerecountryclub.com
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wisdomlenstransmedia.info
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ostethy.com
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zhclgm.com
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rafiten.com
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miteccloud.com
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collagen6.com
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94chuyu.com
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coffeeandsupplycompany.com
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siestone.com
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salonandspaexperts.com
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irnefzo.info
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playback-theatre.com
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ecomportableph.com
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parkplatinum.com
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1963tc.com
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zaubers.com
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getfitnesssupplement.com
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lossolesmarketing.com
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blueprintartco.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Xloader Payload 3 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 44 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\009547789723_pdf.exe"C:\Users\Admin\AppData\Local\Temp\009547789723_pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XqTvBmQZW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF79.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\009547789723_pdf.exe"C:\Users\Admin\AppData\Local\Temp\009547789723_pdf.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\009547789723_pdf.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2556-138-0x0000000004260000-0x00000000042EF000-memory.dmp
memory/2556-136-0x0000000004370000-0x0000000004690000-memory.dmp
memory/2556-135-0x0000000000C40000-0x0000000000C68000-memory.dmp
memory/2556-134-0x0000000000DB0000-0x0000000000DC2000-memory.dmp
memory/3052-130-0x0000000005C30000-0x0000000005D49000-memory.dmp
memory/3052-139-0x0000000005D50000-0x0000000005E69000-memory.dmp
memory/3220-121-0x00000000073F0000-0x0000000007406000-memory.dmp
memory/3220-120-0x00000000052D0000-0x00000000052D1000-memory.dmp
memory/3220-117-0x0000000005660000-0x0000000005661000-memory.dmp
memory/3220-118-0x0000000005160000-0x0000000005161000-memory.dmp
memory/3220-119-0x0000000005140000-0x0000000005141000-memory.dmp
memory/3220-124-0x0000000007800000-0x000000000782A000-memory.dmp
memory/3220-115-0x0000000000850000-0x0000000000851000-memory.dmp
memory/3220-123-0x0000000007560000-0x00000000075BE000-memory.dmp
memory/3220-122-0x00000000074C0000-0x00000000074C1000-memory.dmp
memory/3820-128-0x0000000001AF0000-0x0000000001E10000-memory.dmp
memory/3820-129-0x00000000011F0000-0x0000000001200000-memory.dmp
memory/3820-126-0x0000000000400000-0x0000000000428000-memory.dmp