Analysis
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max time kernel
148s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05-09-2024 12:15
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe
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Size
64KB
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MD5
cc8ab811ebe24660d626af1ebebe10e1
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SHA1
587a81506cd8efa158b21a0c5f43e1fa34a24aaa
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SHA256
0397cfb91b7a9e201d0c8cef1ad9afc86c1c7a4b7c2a9995f926e86d329cba82
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SHA512
6e0a94b6a23885daf6aee92005ab30fb603110ad3d4ca696cdcdc8033a8cc65e1520fa78945f38155971eceaa2c96b15c9f85ea73188b200985fbd8106fa1a77
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzopx0:X6a+SOtEvwDpjBrO1
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation 2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 632 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 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 2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4764 wrote to memory of 632 4764 2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe 85 PID 4764 wrote to memory of 632 4764 2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe 85 PID 4764 wrote to memory of 632 4764 2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_cc8ab811ebe24660d626af1ebebe10e1_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:632
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Network
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Remote address:8.8.8.8:53Request58.55.71.13.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Requestemrlogistics.comIN AResponseemrlogistics.comIN CNAMEtraff-5.hugedomains.comtraff-5.hugedomains.comIN CNAMEhdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.comhdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.comIN A54.161.222.85hdr-nlb7-aebd5d615260636b.elb.us-east-1.amazonaws.comIN A34.205.242.146
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Remote address:8.8.8.8:53Request73.159.190.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request95.221.229.192.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request196.249.167.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request183.59.114.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request15.164.165.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request73.144.22.2.in-addr.arpaIN PTRResponse73.144.22.2.in-addr.arpaIN PTRa2-22-144-73deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request43.229.111.52.in-addr.arpaIN PTRResponse
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260 B 5
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260 B 5
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260 B 5
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260 B 5
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260 B 5
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260 B 5
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260 B 5
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52 B 1
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70 B 144 B 1 1
DNS Request
58.55.71.13.in-addr.arpa
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62 B 192 B 1 1
DNS Request
emrlogistics.com
DNS Response
54.161.222.8534.205.242.146
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72 B 158 B 1 1
DNS Request
73.159.190.20.in-addr.arpa
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73 B 144 B 1 1
DNS Request
95.221.229.192.in-addr.arpa
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73 B 147 B 1 1
DNS Request
196.249.167.52.in-addr.arpa
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72 B 158 B 1 1
DNS Request
183.59.114.20.in-addr.arpa
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72 B 146 B 1 1
DNS Request
15.164.165.52.in-addr.arpa
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70 B 133 B 1 1
DNS Request
73.144.22.2.in-addr.arpa
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72 B 158 B 1 1
DNS Request
43.229.111.52.in-addr.arpa
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD581c56a2a725260d62dd9a5d2dabc71b4
SHA1a46dd7142f1e27eb72adb3c84e3233d64e61b03f
SHA256d85592c551879cdd9db2f8b4f358a39482d46949bf2738995d7d397465a4702e
SHA512f15e91ec8cfd53cce22f814a9333a070c9bf7c27ec99001884a80f9a97676c120741bb039248903000b677852df9636b62c4d2e32d230b34a83965f847d50a3b