Overview
overview
7Static
static
3Output_CR_KeyGen.exe
windows7-x64
7Output_CR_KeyGen.exe
windows10-2004-x64
7$TEMP/BASSMOD.dll
windows7-x64
3$TEMP/BASSMOD.dll
windows10-2004-x64
3$TEMP/R2RJUCE.dll
windows7-x64
3$TEMP/R2RJUCE.dll
windows10-2004-x64
3$TEMP/keygen.exe
windows7-x64
3$TEMP/keygen.exe
windows10-2004-x64
3Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-08-2024 15:48
Static task
static1
Behavioral task
behavioral1
Sample
Output_CR_KeyGen.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Output_CR_KeyGen.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$TEMP/BASSMOD.dll
Resource
win7-20240705-en
Behavioral task
behavioral4
Sample
$TEMP/BASSMOD.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$TEMP/R2RJUCE.dll
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
$TEMP/R2RJUCE.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
$TEMP/keygen.exe
Resource
win7-20240729-en
Behavioral task
behavioral8
Sample
$TEMP/keygen.exe
Resource
win10v2004-20240802-en
General
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Target
$TEMP/R2RJUCE.dll
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Size
242KB
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MD5
90a452c84f7f2b5ca5a61bccaaa17e92
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SHA1
3fb5829be5db5af55ee4043f0dce7f9253d800dd
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SHA256
674a6eafb277261cd6959a4145329ab8b612fe5948fc8daf064192498fa65f92
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SHA512
41304120d3b2d0489fa82c13abce47fca967c6415e28c05382c0c567a167ff400f7d58b843afdfcc33227d4caa8fbb32af38fa7175fd066631fe1bb82615975b
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SSDEEP
3072:BsUYsLox8+vwJMcr7HKKQnpkrsvPmp55kIlzjjrfFO75Ag0Fuev/TBfoxzV7i94:n0x8fO0KD2AvPmbeQNcAOe3TBgDtDc
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 4880 3116 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2824 wrote to memory of 3116 2824 rundll32.exe 83 PID 2824 wrote to memory of 3116 2824 rundll32.exe 83 PID 2824 wrote to memory of 3116 2824 rundll32.exe 83
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RJUCE.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RJUCE.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:3116 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 6203⤵
- Program crash
PID:4880
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3116 -ip 31161⤵PID:2076
Network
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Remote address:8.8.8.8:53Request133.32.126.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request23.58.20.217.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request43.58.199.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request43.58.199.20.in-addr.arpaIN PTR
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Remote address:8.8.8.8:53Request86.23.85.13.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request206.23.85.13.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request73.190.18.2.in-addr.arpaIN PTRResponse73.190.18.2.in-addr.arpaIN PTRa2-18-190-73deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request240.221.184.93.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request29.243.111.52.in-addr.arpaIN PTRResponse
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72 B 158 B 1 1
DNS Request
133.32.126.40.in-addr.arpa
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71 B 131 B 1 1
DNS Request
23.58.20.217.in-addr.arpa
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142 B 157 B 2 1
DNS Request
43.58.199.20.in-addr.arpa
DNS Request
43.58.199.20.in-addr.arpa
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70 B 144 B 1 1
DNS Request
86.23.85.13.in-addr.arpa
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71 B 145 B 1 1
DNS Request
206.23.85.13.in-addr.arpa
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70 B 133 B 1 1
DNS Request
73.190.18.2.in-addr.arpa
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73 B 144 B 1 1
DNS Request
240.221.184.93.in-addr.arpa
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72 B 158 B 1 1
DNS Request
29.243.111.52.in-addr.arpa