Analysis
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max time kernel
128s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
07/08/2023, 06:44
Static task
static1
Behavioral task
behavioral1
Sample
WB Documents No-285380XXX.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
WB Documents No-285380XXX.exe
Resource
win10v2004-20230703-en
General
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Target
WB Documents No-285380XXX.exe
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Size
299KB
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MD5
ea503ada337d9eb0a65a43df7de04256
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SHA1
0168df2069b1cce3924cdb29d8be7b46c3b2cdec
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SHA256
6065cbb9fb0ae29dbdeca23edc1869c329d71fa17cce27daead9fdfec4b48c42
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SHA512
1b241d77e6642584635add27db901ef04667cb8dc6892797bba6f7ac2e80bb72e7aae5275b9b94f8ad7660da163b2d86526df12d326861cb6697f5370e13bcf5
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SSDEEP
6144:TQ606x7lsJ88LxX9BLPQtAfFADvrHdwJzYTFETjPPtzETIKZFFRh:368sxX9Jb6fqYTFETjPP+FF5
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Checks QEMU agent file 2 TTPs 1 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
description ioc Process File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe WB Documents No-285380XXX.exe -
Loads dropped DLL 2 IoCs
pid Process 4344 WB Documents No-285380XXX.exe 4344 WB Documents No-285380XXX.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4344 WB Documents No-285380XXX.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\eksponer\handstaff\Verruga\bukselommens.coa WB Documents No-285380XXX.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 1340 4344 WerFault.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\WB Documents No-285380XXX.exe"C:\Users\Admin\AppData\Local\Temp\WB Documents No-285380XXX.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
PID:4344 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 10442⤵
- Program crash
PID:1340
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4344 -ip 43441⤵PID:2216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD59625d5b1754bc4ff29281d415d27a0fd
SHA180e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SHA256c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
SHA512dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b
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Filesize
11KB
MD59625d5b1754bc4ff29281d415d27a0fd
SHA180e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SHA256c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
SHA512dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b
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Filesize
11KB
MD59625d5b1754bc4ff29281d415d27a0fd
SHA180e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SHA256c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
SHA512dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b