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Analysis
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max time kernel
142s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
19/03/2024, 23:13
Static task
static1
Behavioral task
behavioral1
Sample
a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe
Resource
win10v2004-20240226-en
General
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Target
a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe
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Size
67KB
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MD5
ad41b1788fac93c03099a155e7ce9933
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SHA1
5b42f53d7c6e6b71f27828ffde56d3110ebcba5a
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SHA256
a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab
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SHA512
1b77f4e9c30e5d38464f3d0f3369375e57fb400898e01c8d6785c806124a0168e26dec6981b422469f3d85271b95c15429bb96dc4e115ce30eb73ddcb10f7ce9
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SSDEEP
1536:9dIERu8ic9Zd8Z3PstS+GccqxGXuqNlqDWhq4eUj9Ww6:9dVS+1xGXuqNl6Wh2UMw6
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4644 murzuja.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 45 icanhazip.com -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4068 wrote to memory of 4644 4068 a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe 97 PID 4068 wrote to memory of 4644 4068 a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe 97 PID 4068 wrote to memory of 4644 4068 a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe"C:\Users\Admin\AppData\Local\Temp\a2a4f22034f1249eb93a6b14443851040c838aeab36f25dc4c8ae2d8deaba6ab.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4068 -
C:\Users\Admin\AppData\Local\Temp\murzuja.exeC:\Users\Admin\AppData\Local\Temp\murzuja.exe2⤵
- Executes dropped EXE
PID:4644
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3772 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:81⤵PID:4648
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
67KB
MD5c0817dfe3428aabf1664aaeb0c918572
SHA14b5f8fdca1593f86bf9993f17b0e5d40836949e0
SHA256b2908afe5543904ac8c20ceee0900f2e5ab4f038a9034921b16e7ea47cd4d2ed
SHA51277eda4ca3e650b998f56ecbd3849bae20527bdee14063ecee34fb988cc6ea9dd2a038186c657012865f2cd29d9bd9abcd51384d4748b6624a459d39b9579c44f