Analysis
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max time kernel
122s -
max time network
122s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
19/01/2022, 16:14
Static task
static1
Behavioral task
behavioral1
Sample
Attachments.lnk
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
Attachments.lnk
Resource
win10v2004-en-20220113
Behavioral task
behavioral3
Sample
DumpStack.log.dll
Resource
win7-en-20211208
Behavioral task
behavioral4
Sample
DumpStack.log.dll
Resource
win10v2004-en-20220113
General
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Target
Attachments.lnk
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Size
1KB
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MD5
e87e52db1aa360baf8444c5524dd2b26
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SHA1
b89d0c4568c74f03ec3e1917c22a83c37409b10a
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SHA256
6497223d35530f2e510382aa1866b83ffaf215213b8080b7ecb299b6e7e3e6b1
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SHA512
e93d7808c29ec45569382ee5bd2f50a41c0cf1c1d2cbb909d5aec2abf166f0ad87b672eaa4a1c00b28eb31faf55f1a254d8ab842bcb4d22dd750b26926e7c64a
Malware Config
Signatures
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Bazar Loader
Detected loader normally used to deploy BazarBackdoor malware.
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Bazar/Team9 Loader payload 1 IoCs
resource yara_rule behavioral1/memory/472-57-0x0000000180000000-0x000000018003D000-memory.dmp BazarLoaderVar5 -
Loads dropped DLL 1 IoCs
pid Process 472 rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1600 wrote to memory of 320 1600 cmd.exe 28 PID 1600 wrote to memory of 320 1600 cmd.exe 28 PID 1600 wrote to memory of 320 1600 cmd.exe 28 PID 320 wrote to memory of 652 320 cmd.exe 29 PID 320 wrote to memory of 652 320 cmd.exe 29 PID 320 wrote to memory of 652 320 cmd.exe 29 PID 320 wrote to memory of 472 320 cmd.exe 30 PID 320 wrote to memory of 472 320 cmd.exe 30 PID 320 wrote to memory of 472 320 cmd.exe 30
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Attachments.lnk1⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c xcopy /y DumpStack.log c:\programdata\ && C:\Windows\System32\rundll32.exe C:\programdata\DumpStack.log,spload && exit2⤵
- Suspicious use of WriteProcessMemory
PID:320 -
C:\Windows\system32\xcopy.exexcopy /y DumpStack.log c:\programdata\3⤵PID:652
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\programdata\DumpStack.log,spload3⤵
- Loads dropped DLL
PID:472
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