Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
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submitted
03-01-2025 15:40
General
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Target
4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.exe
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Size
711KB
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MD5
f6772efd6e93320464fe9efd139ba4f0
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SHA1
526ff91f026e6513b79d0aaabd32ceba9808ead4
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SHA256
4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fd
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SHA512
0eaef96092d4dff7052725cf29b8ddb99a2919e75de033705e525de9be5fbc2a930368728a7788211485fdc5397cf26e31e249a59471aae7eb9ad6d0f238789f
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SSDEEP
12288:umWhND9yJz+b1FcMLmp2ATTSsdsmWhND9yJz+b1FcMLmp2ATTSsdS:umUNJyJqb1FcMap2ATT5qmUNJyJqb1FB
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\4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.exe"C:\Users\Admin\AppData\Local\Temp\4d6a75897d1bee9ad4dbadbae18352f8bcc1173b7b5d2db2aa1485370bacd1fdN.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
42KB
MD50dd76cdf6ae508077f5b4282fb6788a1
SHA174ba6dd037e08bbac6208cced11ce0dc0f26a154
SHA2561fb76fdffab2f2c9b220dcfc19be2084e2854b62edae86ffb093389349c7d849
SHA512c88483adcbf12ae576590bb2fa4c33d430ad5afe7d479e7841aa8c1a1809d24ac78f955220c0bb047761674e2efc4cb2f81c294cf15dd779e6438229dd09d0dd
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Filesize
711KB
MD5d35e7c76bec8eb9d2bdb986efc4248c5
SHA15d03fbd892f06151e7e9fe7bfa1eb1c4e03a7582
SHA256b58fc0ba048c2cc4ce90c11438addfeae52be52ad774c38ad122b3b9b66cb1de
SHA512c57fa6be848a697b086c2afebfa6a0564dbb033e702778ebf372fa2025b923e29650ce0db6fc622a2b6a37f0be40d5b0850eb6f64fb4836e186e706150116424
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Filesize
380KB
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Filesize
672KB
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672KB
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672KB
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672KB
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672KB
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672KB
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728KB
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