Analysis
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max time kernel
28s -
max time network
47s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11/03/2024, 19:53
Static task
static1
Behavioral task
behavioral1
Sample
payment advice_pdf.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
payment advice_pdf.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
General
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Target
payment advice_pdf.exe
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Size
551KB
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MD5
341dab4037e9eff3fa0f34fb8382f30c
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SHA1
9833559bcda07e6976364672f6b7c8bcef84571f
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SHA256
665b8dea01643cce577cc8cc6cc1677e78cbf4559b7c0fbd0446dee65970b4ea
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SHA512
bd0d81ddde528f9987f749f9789d6a32300c7eef5d98593c4fc708d0352d0c8828982482894bd8ac9e768e320f4ba5fede2ecd8937a461dadad4015be2940f3d
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SSDEEP
6144:ImOP0pJkkuNjE241F13gyLWoz6XVasKvGSz7tvIPykUn5CRFaPyCoUtU7Hi8R55i:pkNE2cL3rKou+vGEZvx5CD1W4i83bWL
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 1 IoCs
pid Process 1036 payment advice_pdf.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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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 54 drive.google.com 55 drive.google.com -
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
pid Process 4480 payment advice_pdf.exe 4480 payment advice_pdf.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1036 payment advice_pdf.exe 4480 payment advice_pdf.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1036 set thread context of 4480 1036 payment advice_pdf.exe 97 -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\underskrider.pha payment advice_pdf.exe File opened for modification C:\Program Files (x86)\likvidationer\glamorise.ini payment advice_pdf.exe File opened for modification C:\Program Files (x86)\Common Files\unvariegated\Enker.non payment advice_pdf.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\overrealistic.ini payment advice_pdf.exe File opened for modification C:\Windows\resources\0409\frugtsaftens.urs payment advice_pdf.exe File opened for modification C:\Windows\resources\0409\Escapee246\svingturenes.ini payment advice_pdf.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1036 payment advice_pdf.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1036 wrote to memory of 4480 1036 payment advice_pdf.exe 97 PID 1036 wrote to memory of 4480 1036 payment advice_pdf.exe 97 PID 1036 wrote to memory of 4480 1036 payment advice_pdf.exe 97 PID 1036 wrote to memory of 4480 1036 payment advice_pdf.exe 97 PID 1036 wrote to memory of 4480 1036 payment advice_pdf.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\payment advice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\payment advice_pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Users\Admin\AppData\Local\Temp\payment advice_pdf.exe"C:\Users\Admin\AppData\Local\Temp\payment advice_pdf.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD59625d5b1754bc4ff29281d415d27a0fd
SHA180e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SHA256c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
SHA512dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b