Analysis
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max time kernel
111s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
02/11/2024, 23:36
General
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Target
b3b0476e6ca158e805221a13fe5ab77f49bb0e57da8aa1701e971115eb99c8b7N.exe
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Size
212KB
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MD5
6483cd87fecd6d475b9c350852294860
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SHA1
13895bc4819d2facd584493e3561251e61ed3872
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SHA256
b3b0476e6ca158e805221a13fe5ab77f49bb0e57da8aa1701e971115eb99c8b7
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SHA512
7e1e631539bad58aac6868a7aec0892de5332e5973f33b61b1d6005b075f1ec1a75327210e3b7567cdc7ca9a9134e388e29727da67a907eb09ae8624e73afc8a
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SSDEEP
3072:YGwPsm1VrwxOsf0juzv8j4P1Hr6krr4IEhx9QZe2gO9mG9UHA30Vt3E/vDjb:YG/iVkO20SFgBhxtW9mG9+Umt3Ezjb
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\b3b0476e6ca158e805221a13fe5ab77f49bb0e57da8aa1701e971115eb99c8b7N.exe"C:\Users\Admin\AppData\Local\Temp\b3b0476e6ca158e805221a13fe5ab77f49bb0e57da8aa1701e971115eb99c8b7N.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
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Downloads
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Filesize
212KB
MD5a5fff9e59ae16e0215430a91a56b8797
SHA171dade80aa9f3422e62a4f3bdeffeda10a3eda29
SHA256e561416eebbc761341b2dec0bdf28a6d8a23b0a521e11407312bb2dd2ce06949
SHA5125e4230f966db04e7dd0d51f3eae4f365d4c3c4351bed2f29980fad6e5549c8bdae5bd15ff0cbefdfe73b93f933eacaeaa60490a9a648409cc43e48804be5e971
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Filesize
1.7MB
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Filesize
324KB
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Filesize
380KB
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Filesize
380KB
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Filesize
324KB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
1.7MB
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Filesize
672KB
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Filesize
672KB
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672KB
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Filesize
1.7MB
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Filesize
672KB
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672KB
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672KB
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728KB
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728KB
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