Resubmissions
29/01/2024, 04:39
240129-e973taabe9 1029/01/2024, 02:55
240129-dew7dshgep 1029/01/2024, 01:55
240129-ccg41sfdf2 1029/01/2024, 01:50
240129-b9jhnsgham 329/01/2024, 01:26
240129-bts26sfaa4 10Analysis
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max time kernel
145s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
29/01/2024, 02:55
Static task
static1
Behavioral task
behavioral1
Sample
iroto.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
iroto1.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
research-1646684671.xls
Resource
win10v2004-20231215-en
General
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Target
iroto1.dll
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Size
434KB
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MD5
8e6fbefcbac2a1967941fa692c82c3ca
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SHA1
242a7803adb19f638ef62077f1b76756f3a13a0d
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SHA256
e05c717b43f7e204f315eb8c298f9715791385516335acd8f20ec9e26c3e9b0b
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SHA512
bc6dc64fa5bc19f234e3df27f718a50f82f6f086da2cd761d81edda4cf9355b40115279ebc368a0f55cf651405e34988336f9f5c3577ce7a7433971194a7b179
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SSDEEP
12:e9GSG2CTi/FfILQAu//6lgR0FWdzQ2VCARHUwOLe7EEe:e9GSnCTi9ALsQiQ296LG
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 2192 4052 WerFault.exe 85 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2496 wrote to memory of 4052 2496 rundll32.exe 85 PID 2496 wrote to memory of 4052 2496 rundll32.exe 85 PID 2496 wrote to memory of 4052 2496 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\iroto1.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\iroto1.dll,#12⤵PID:4052
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 5443⤵
- Program crash
PID:2192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4052 -ip 40521⤵PID:4092