Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
02/06/2024, 23:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe
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Size
43KB
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MD5
086c2831349dc7480a591a0bee91209c
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SHA1
ffe98f9c5fab6587e1fb06e8d3dada3947227be6
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SHA256
d6f8f2a254dcbb32b272c287958adc698028ed275f496a6da2941ae4260771ba
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SHA512
1f87e31c3466f50a2436ca3cde99f3dda3ec89badfda2c9901abfb1bba6bf52f03a325ce01e46a730145711dbd87a1650a43d385c2529d436b05dfecbe80ed28
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUI/:bm74zYcgT/Ekn0ryfjT
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1264-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0006000000022fa8-13.dat CryptoLocker_rule2 behavioral2/memory/1264-17-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2160-26-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 -
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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation 2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2160 hasfj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1264 wrote to memory of 2160 1264 2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe 82 PID 1264 wrote to memory of 2160 1264 2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe 82 PID 1264 wrote to memory of 2160 1264 2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1264 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2160
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD57ae591cca3f99c4924c2c10c0de00e48
SHA1c3ef5c6b3d7e57398177b04aa700bad18e6a78d4
SHA2567237917422bbf869ccffb05e242de8c0186546dd811c10b4c87aea2d719d25f8
SHA5129e7ffb12106ba28c5face8528b458868520835d26dd65a1481dc0ea32cafc21aff2e65d5ea9371338e0a3045c7b7d273007a78b9edb3f8165a8d77d7de7e3556