Analysis
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max time kernel
117s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 21:43
Behavioral task
behavioral1
Sample
4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe
Resource
win10v2004-20240508-en
General
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Target
4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe
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Size
134KB
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MD5
02d924f5831e010778b5fc77685a4b3e
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SHA1
cfd201bdd8e7549c8ed37f3f1e5a3d30bae8f73f
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SHA256
4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e
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SHA512
1aced28b7aa48452e72a2c8c6e119a93fdb134bafe276a8dccb09df302e44de53a9611b090f39185bb5e410cf62010b1187ec1e49931af4b9a6306e8298298b3
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SSDEEP
1536:rF0AJELopHG9aa+9qX3apJzAKWYr0v7ioy6paK2AZqMIK7aGZh38QC:riAyLN9aa+9U2rW1ip6pr2At7NZuQC
Malware Config
Signatures
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UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral1/memory/2816-1-0x0000000000210000-0x0000000000238000-memory.dmp UPX behavioral1/files/0x0009000000015cd9-2.dat UPX behavioral1/memory/2276-6-0x00000000000C0000-0x00000000000E8000-memory.dmp UPX behavioral1/memory/2816-8-0x0000000000210000-0x0000000000238000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2276 WwanSvc.exe -
Loads dropped DLL 1 IoCs
pid Process 2816 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe -
resource yara_rule behavioral1/memory/2816-1-0x0000000000210000-0x0000000000238000-memory.dmp upx behavioral1/files/0x0009000000015cd9-2.dat upx behavioral1/memory/2276-6-0x00000000000C0000-0x00000000000E8000-memory.dmp upx behavioral1/memory/2816-8-0x0000000000210000-0x0000000000238000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\WwanSvc.exe\" /run" 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2816 wrote to memory of 2276 2816 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe 28 PID 2816 wrote to memory of 2276 2816 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe 28 PID 2816 wrote to memory of 2276 2816 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe 28 PID 2816 wrote to memory of 2276 2816 4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe"C:\Users\Admin\AppData\Local\Temp\4a6f1e0d5c341d0d772264832ba6d71d5a5ba2f55b0d47429474f9b016ad951e.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\ProgramData\Update\WwanSvc.exe"C:\ProgramData\Update\WwanSvc.exe" /run2⤵
- Executes dropped EXE
PID:2276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
134KB
MD5a5e955ea57064c9a8c815422b6d2ba3a
SHA12de4bc546adc9aff47a03e81c180914e542b4e50
SHA256749184dc96d3b20569b2153c7c08d416d1a35df97f6843b49947c73f3a645516
SHA512ef3422d2f2dc9efb3d012889020366aea48d3db745fd6ae7c9c5a70c0e7293ab8d18b7b1b67de34cb5d8ebefc05bd31607f35f3e7d4b0908b42cf0fcddf16ddc