Analysis
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max time kernel
142s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 01:30
Static task
static1
Behavioral task
behavioral1
Sample
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240426-en
General
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Target
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe
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Size
542KB
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MD5
a5b21b2b487ef822fa7564a5a6833e10
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SHA1
658b3e8680f568b6ae557bbc14cefbf8ce6cc54d
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SHA256
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527
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SHA512
8f3bde613d093b50277a60accfea4adf8e7c5eaccc9bfbe2684e6271ed20e6e3ebe38c9ce20b9f820a628b0deb48a3f0c4f9907af42dcd540ab6ae5c8ae804a6
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SSDEEP
12288:reCLyNx2qdIzjxxtoHzWb+xDuKLDKg4rUQqS0JFy/ykYPEvGT+KsjE:rebNwqaz9jszK+xiKvt4rUM0JFyFYPg8
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
behw orok mlzk zmzt - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect packed .NET executables. Mostly AgentTeslaV4. 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_EXE_Packed_GEN01 behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_EXE_Packed_GEN01 -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables referencing Windows vault credential objects. Observed in infostealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
Detects executables referencing many file transfer clients. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients behavioral1/memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmp INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients -
Loads dropped DLL 2 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exepid process 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 api.ipify.org 6 api.ipify.org -
Drops file in System32 directory 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exedescription ioc process File opened for modification C:\Windows\SysWOW64\kaleb.ini 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exepid process 2504 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exepid process 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 2504 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exedescription pid process target process PID 2264 set thread context of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Drops file in Program Files directory 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exedescription ioc process File opened for modification C:\Program Files (x86)\skitserer.ini 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exepid process 2504 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 2504 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exepid process 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exedescription pid process Token: SeDebugPrivilege 2504 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exedescription pid process target process PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe PID 2264 wrote to memory of 2504 2264 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe 55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe"C:\Users\Admin\AppData\Local\Temp\55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe"C:\Users\Admin\AppData\Local\Temp\55803a4227e0110d88300cd0ea5c98d479738a2a33be1d07702301eb1fc37527.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
1B
MD58ce4b16b22b58894aa86c421e8759df3
SHA113fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA2568254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
SHA5122af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
2B
MD525bc6654798eb508fa0b6343212a74fe
SHA115d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA2568e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
SHA5125868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
3B
MD54e27f2226785e9abbe046fc592668860
SHA128b18a7f383131df509f7191f946a32c5a2e410c
SHA25601a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
SHA5122a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
4B
MD5cde63b34c142af0a38cbe83791c964f8
SHA1ece2b194b486118b40ad12c1f0e9425dd0672424
SHA25665e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
SHA5120559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
5B
MD5e2fecc970546c3418917879fe354826c
SHA163f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA256ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
SHA5123c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
6B
MD550484c19f1afdaf3841a0d821ed393d2
SHA1c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA2566923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
SHA512d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
7B
MD567cfa7364c4cf265b047d87ff2e673ae
SHA156e27889277981a9b63fcf5b218744a125bbc2fa
SHA256639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
SHA51217f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
8B
MD5c3cb69218b85c3260387fb582cb518dd
SHA1961c892ded09a4cbb5392097bb845ccba65902ad
SHA2561c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
SHA5122402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
9B
MD52b3884fe02299c565e1c37ee7ef99293
SHA1d8e2ef2a52083f6df210109fea53860ea227af9c
SHA256ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
SHA512aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
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C:\Users\Admin\AppData\Local\Temp\nsy1F38.tmpFilesize
10B
MD59a53fc1d7126c5e7c81bb5c15b15537b
SHA1e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA256a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
SHA512b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
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C:\Windows\SysWOW64\kaleb.iniFilesize
45B
MD59dfd97e7025bf54441fe6759f87e5ddf
SHA10f04ae6a7bc2213255fc72898f339b12bd743f24
SHA256eea1bdc93e5a8fcbca0aea236d83b487ad2af028095a0d0107f02d397b4372fb
SHA51208ea09b23814906f040060b46d919d45f6aee0c96b27d0baa88813bc46032c274546adb89e354b78f659c962a8588adbbd49966951e1f1b097e2484a07678f44
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\Users\Admin\AppData\Local\Temp\nsd1C49.tmp\System.dllFilesize
11KB
MD58b3830b9dbf87f84ddd3b26645fed3a0
SHA1223bef1f19e644a610a0877d01eadc9e28299509
SHA256f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
SHA512d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03
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memory/2264-841-0x0000000077881000-0x0000000077982000-memory.dmpFilesize
1.0MB
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memory/2264-842-0x0000000077880000-0x0000000077A29000-memory.dmpFilesize
1.7MB
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memory/2504-843-0x0000000077880000-0x0000000077A29000-memory.dmpFilesize
1.7MB
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memory/2504-844-0x0000000000490000-0x00000000014F2000-memory.dmpFilesize
16.4MB
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memory/2504-845-0x0000000000490000-0x00000000004D2000-memory.dmpFilesize
264KB