Analysis
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max time kernel
144s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
01/11/2024, 23:32
General
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Target
a8931df264af10ae51b4037c06ca8c68a5994a632f6d6ad471925b5719a75a01N.exe
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Size
375KB
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MD5
4ed0cd9bf51bcd82f8a8f034797cd560
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SHA1
339c210019083e788a4850dda2d9e1c4b7ac9fb1
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SHA256
a8931df264af10ae51b4037c06ca8c68a5994a632f6d6ad471925b5719a75a01
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SHA512
7762d42d83928ff553990f9051aaf333f770aad03fb1fb1b36e65f5b18fb57124d082bca97f9423142981c347e6585dcad89b5e12643559e1e62ca92e65c544a
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SSDEEP
6144:i3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9EiU:dmWhND9yJz+b1FcMLmp2ATTSsdU
Malware Config
Extracted
simda
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dga
gatyfus.com
lyvyxor.com
vojyqem.com
qetyfuv.com
puvyxil.com
gahyqah.com
lyryfyd.com
vocyzit.com
qegyqaq.com
purydyv.com
gacyzuz.com
lygymoj.com
vowydef.com
qexylup.com
pufymoq.com
gaqydeb.com
lyxylux.com
vofymik.com
qeqysag.com
puzylyp.com
gadyniw.com
lymysan.com
volykyc.com
qedynul.com
pumypog.com
galykes.com
lysynur.com
vonypom.com
qekykev.com
pupybul.com
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
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Simda family
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simda
Simda is an infostealer written in C++.
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 2 IoCs
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Modifies WinLogon 2 TTPs 2 IoCs
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Drops file in Windows directory 2 IoCs
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 1 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a8931df264af10ae51b4037c06ca8c68a5994a632f6d6ad471925b5719a75a01N.exe"C:\Users\Admin\AppData\Local\Temp\a8931df264af10ae51b4037c06ca8c68a5994a632f6d6ad471925b5719a75a01N.exe"1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\apppatch\svchost.exe"C:\Windows\apppatch\svchost.exe"2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies WinLogon
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
481B
MD50cb1366ac95c60a0b5c217e74dc7a5f2
SHA1540b0aeb3305ef17f5448b1acc4c5fe34731e229
SHA25625d8b8ceb2dd232d7ae3ff31501513c99ba9eaed20be2bc28ce3e05f887a9264
SHA51212255025054abc70c96734458de57f47b2797a59dca3112960749f9b538223c48125fc18be780913ca1f92c5b0ff8253fe7605d257a17c23634a1b1d63b7d7a0
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Filesize
375KB
MD55f6d9633741f0d429513d6998df01def
SHA149c8d16d54a8ba81bfc11a8cbbdd6a994ddf3942
SHA256f893b3ec10910fbeebb3b8b19c6ea6cbe30fd5175802b2580629ed3f6392ffeb
SHA51242cb50a38a0f7083e3c4bd6c680adc7dddc6aa37a2653515971c456c85359157328185d265b4100a4b1429e328efdba2773f24391d836a443a980817113fcd9a
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Filesize
400KB
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Filesize
400KB
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Filesize
400KB
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Filesize
400KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
672KB
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Filesize
728KB
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Filesize
728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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728KB
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Filesize
400KB
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Filesize
728KB