Analysis
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max time kernel
122s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-12-2024 02:43
Static task
static1
Behavioral task
behavioral1
Sample
a6ybp.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a6ybp.exe
Resource
win10v2004-20241007-en
General
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Target
a6ybp.exe
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Size
133KB
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MD5
5052c5edb614bae7449e4fe24466d312
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SHA1
ac891f7448c5b5bef1e1b0d66fb6a020245131ab
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SHA256
25f38d1847951f8cbf676cd97216c830462bb875c405f781ae053dd8fbfc83f8
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SHA512
c67abfee80001aa589cfc823be86a41ce8ca29bcd01baf57ce588c0ace6a918c650699b397a7baf6948b65cc97e899a43eae55cc8478c7057d2696419a2aef38
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SSDEEP
1536:h1i/R5w3LS++phVPt/4EPdHfXiZWOhVaXoz3ZGvFRLI4c1H35FwCUe0UgcRGx:inOLWhZPxSZbVaXVvFRL41H353U2NGx
Malware Config
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Smokeloader family
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Loads dropped DLL 1 IoCs
pid Process 2772 a6ybp.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2400 set thread context of 2772 2400 a6ybp.exe 30 -
System Location Discovery: System Language Discovery 1 TTPs 1 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 a6ybp.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30 PID 2400 wrote to memory of 2772 2400 a6ybp.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400 -
C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"C:\Users\Admin\AppData\Local\Temp\a6ybp.exe"2⤵
- Loads dropped DLL
PID:2772
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06