Analysis
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max time kernel
92s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2024 03:43
Static task
static1
Behavioral task
behavioral1
Sample
d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe
Resource
win7-20240903-en
General
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Target
d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe
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Size
67KB
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MD5
f1ba7e7daa26e1a542944395df534770
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SHA1
d65578addcab5f360ee4cc3e18071c4ff48b4c65
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SHA256
d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004c
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SHA512
0c1ec46a3a521c4e8d2114efef7afaa501a8d42b07f7580716df712ab7d13fe664e7bf983b8858579f5f120649682a8c6824cc712858743764053ca6e3216f3c
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SSDEEP
1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCare4:yLAYUzmdD0sMQl7d7IuhCai4
Malware Config
Extracted
urelas
218.54.47.76
218.54.47.77
218.54.47.74
Signatures
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Urelas family
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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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe -
Executes dropped EXE 1 IoCs
pid Process 2848 biudfw.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 3 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 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language biudfw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4264 wrote to memory of 2848 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 87 PID 4264 wrote to memory of 2848 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 87 PID 4264 wrote to memory of 2848 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 87 PID 4264 wrote to memory of 408 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 88 PID 4264 wrote to memory of 408 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 88 PID 4264 wrote to memory of 408 4264 d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe"C:\Users\Admin\AppData\Local\Temp\d5427dae893551cfc421e02625959ca41364913b8027e563ed09e12949f6004cN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4264 -
C:\Users\Admin\AppData\Local\Temp\biudfw.exe"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2848
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "2⤵
- System Location Discovery: System Language Discovery
PID:408
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
67KB
MD568e356fd613f7c7ff2cb76dddeede0bd
SHA102e8b3a60d91a0173b174389aaf2006dc25d89cf
SHA2566c6e5df48b8ee80571b10f242d741416e7f5f7636c3da6f3feb1093bd8b508d8
SHA512dfe90a854190dea46ff81aa4d0e2f69d2a9aa6812743a55d935036906548072c4c54950f88c6de3404eacbcf6c91714fb14916fb49c8177306193c7ca2a75645
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Filesize
512B
MD51c9b2720af0ca9528b47898d9c7f4799
SHA180495f16e333f54ecc700252323c2a7cb7d751e1
SHA256d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
SHA5125afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
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Filesize
340B
MD57f300d65c60a00ac027dfa759dfbf9ae
SHA14bc9eed9023235540898ac067c8fc8ebb1f199e0
SHA2565335fa88670a427649aba9e71c5847763005510d71afb6c93c90c1ea7863c51c
SHA512077b1db3fc084c2ba91a4ff3cf503c4e377f113da6f9a6f888015f0e0fc8b5c07d29496fcdd80639eaf02a1e8b8286cd157fabf46563761e2e9c2bc0b13275bb