Analysis
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max time kernel
117s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
17-05-2024 12:07
Static task
static1
Behavioral task
behavioral1
Sample
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
Resource
win10v2004-20240508-en
General
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Target
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe
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Size
66KB
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MD5
2451fe4d6f61c5160d2c938c144a8a53
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SHA1
ab101316ff60cda1b7a4bfc1d535c234c0d60936
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SHA256
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22
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SHA512
abc4246b910ac8c997d9f0ec07116f9035e97a2a0410b90414c4ce8bd3deaf2a05c19428749d3ffd486e01ac70979df7a54231b521331092d5d2cbbe7bc95329
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SSDEEP
1536:Puca4wJAD99k/5/CuojaFLEf2X9JT8GJQ2Hs3hGH:HaP09NgJAGJQ2HpH
Malware Config
Extracted
azorult
http://ehzwq.shop/BL134/index.php
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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PureLog Stealer
PureLog Stealer is an infostealer written in C#.
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PureLog Stealer payload 2 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\Mrmjzj.exe family_purelog_stealer behavioral1/memory/3232-4896-0x0000000000A70000-0x0000000000A8A000-memory.dmp family_purelog_stealer -
Executes dropped EXE 1 IoCs
Processes:
Mrmjzj.exepid process 3232 Mrmjzj.exe -
Loads dropped DLL 17 IoCs
Processes:
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exeRegAsm.exepid process 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.exe 3280 RegAsm.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 local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook RegAsm.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exeMrmjzj.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\uvef = "C:\\Users\\Admin\\AppData\\Roaming\\uvef.exe" 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\uvef = "C:\\Users\\Admin\\AppData\\Roaming\\uvef.exe" Mrmjzj.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
Processes:
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exeMrmjzj.exedescription pid process target process PID 1524 set thread context of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 3232 set thread context of 3216 3232 Mrmjzj.exe RegAsm.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 5072 timeout.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
RegAsm.exepid process 3216 RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
RegAsm.exepid process 3280 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exeMrmjzj.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Token: SeDebugPrivilege 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Token: SeDebugPrivilege 3232 Mrmjzj.exe Token: SeDebugPrivilege 3232 Mrmjzj.exe Token: SeDebugPrivilege 3216 RegAsm.exe -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exeMrmjzj.exeRegAsm.execmd.exedescription pid process target process PID 1524 wrote to memory of 3232 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Mrmjzj.exe PID 1524 wrote to memory of 3232 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Mrmjzj.exe PID 1524 wrote to memory of 3232 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Mrmjzj.exe PID 1524 wrote to memory of 3232 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe Mrmjzj.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 1524 wrote to memory of 3280 1524 9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3232 wrote to memory of 3216 3232 Mrmjzj.exe RegAsm.exe PID 3280 wrote to memory of 5016 3280 RegAsm.exe cmd.exe PID 3280 wrote to memory of 5016 3280 RegAsm.exe cmd.exe PID 3280 wrote to memory of 5016 3280 RegAsm.exe cmd.exe PID 3280 wrote to memory of 5016 3280 RegAsm.exe cmd.exe PID 5016 wrote to memory of 5072 5016 cmd.exe timeout.exe PID 5016 wrote to memory of 5072 5016 cmd.exe timeout.exe PID 5016 wrote to memory of 5072 5016 cmd.exe timeout.exe PID 5016 wrote to memory of 5072 5016 cmd.exe timeout.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe"C:\Users\Admin\AppData\Local\Temp\9c4b7f8a8732beb18b38ad4a4a853727cfb3da38666b45c4051c76801536bf22.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524 -
C:\Users\Admin\AppData\Local\Temp\Mrmjzj.exe"C:\Users\Admin\AppData\Local\Temp\Mrmjzj.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3232 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
PID:3216 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3280 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "RegAsm.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Windows\SysWOW64\timeout.exeC:\Windows\system32\timeout.exe 34⤵
- Delays execution with timeout.exe
PID:5072
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
21KB
MD572e28c902cd947f9a3425b19ac5a64bd
SHA19b97f7a43d43cb0f1b87fc75fef7d9eeea11e6f7
SHA2563cc1377d495260c380e8d225e5ee889cbb2ed22e79862d4278cfa898e58e44d1
SHA51258ab6fedce2f8ee0970894273886cb20b10d92979b21cda97ae0c41d0676cc0cd90691c58b223bce5f338e0718d1716e6ce59a106901fe9706f85c3acf7855ff
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Filesize
18KB
MD5ac290dad7cb4ca2d93516580452eda1c
SHA1fa949453557d0049d723f9615e4f390010520eda
SHA256c0d75d1887c32a1b1006b3cffc29df84a0d73c435cdcb404b6964be176a61382
SHA512b5e2b9f5a9dd8a482169c7fc05f018ad8fe6ae27cb6540e67679272698bfca24b2ca5a377fa61897f328b3deac10237cafbd73bc965bf9055765923aba9478f8
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Filesize
19KB
MD5aec2268601470050e62cb8066dd41a59
SHA1363ed259905442c4e3b89901bfd8a43b96bf25e4
SHA2567633774effe7c0add6752ffe90104d633fc8262c87871d096c2fc07c20018ed2
SHA5120c14d160bfa3ac52c35ff2f2813b85f8212c5f3afbcfe71a60ccc2b9e61e51736f0bf37ca1f9975b28968790ea62ed5924fae4654182f67114bd20d8466c4b8f
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Filesize
18KB
MD593d3da06bf894f4fa21007bee06b5e7d
SHA11e47230a7ebcfaf643087a1929a385e0d554ad15
SHA256f5cf623ba14b017af4aec6c15eee446c647ab6d2a5dee9d6975adc69994a113d
SHA51272bd6d46a464de74a8dac4c346c52d068116910587b1c7b97978df888925216958ce77be1ae049c3dccf5bf3fffb21bc41a0ac329622bc9bbc190df63abb25c6
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Filesize
18KB
MD5a2f2258c32e3ba9abf9e9e38ef7da8c9
SHA1116846ca871114b7c54148ab2d968f364da6142f
SHA256565a2eec5449eeeed68b430f2e9b92507f979174f9c9a71d0c36d58b96051c33
SHA512e98cbc8d958e604effa614a3964b3d66b6fc646bdca9aa679ea5e4eb92ec0497b91485a40742f3471f4ff10de83122331699edc56a50f06ae86f21fad70953fe
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Filesize
28KB
MD58b0ba750e7b15300482ce6c961a932f0
SHA171a2f5d76d23e48cef8f258eaad63e586cfc0e19
SHA256bece7bab83a5d0ec5c35f0841cbbf413e01ac878550fbdb34816ed55185dcfed
SHA512fb646cdcdb462a347ed843312418f037f3212b2481f3897a16c22446824149ee96eb4a4b47a903ca27b1f4d7a352605d4930df73092c380e3d4d77ce4e972c5a
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Filesize
25KB
MD535fc66bd813d0f126883e695664e7b83
SHA12fd63c18cc5dc4defc7ea82f421050e668f68548
SHA25666abf3a1147751c95689f5bc6a259e55281ec3d06d3332dd0ba464effa716735
SHA51265f8397de5c48d3df8ad79baf46c1d3a0761f727e918ae63612ea37d96adf16cc76d70d454a599f37f9ba9b4e2e38ebc845df4c74fc1e1131720fd0dcb881431
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Filesize
22KB
MD541a348f9bedc8681fb30fa78e45edb24
SHA166e76c0574a549f293323dd6f863a8a5b54f3f9b
SHA256c9bbc07a033bab6a828ecc30648b501121586f6f53346b1cd0649d7b648ea60b
SHA5128c2cb53ccf9719de87ee65ed2e1947e266ec7e8343246def6429c6df0dc514079f5171acd1aa637276256c607f1063144494b992d4635b01e09ddea6f5eef204
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Filesize
23KB
MD5fefb98394cb9ef4368da798deab00e21
SHA1316d86926b558c9f3f6133739c1a8477b9e60740
SHA256b1e702b840aebe2e9244cd41512d158a43e6e9516cd2015a84eb962fa3ff0df7
SHA51257476fe9b546e4cafb1ef4fd1cbd757385ba2d445d1785987afb46298acbe4b05266a0c4325868bc4245c2f41e7e2553585bfb5c70910e687f57dac6a8e911e8
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Filesize
22KB
MD5404604cd100a1e60dfdaf6ecf5ba14c0
SHA158469835ab4b916927b3cabf54aee4f380ff6748
SHA25673cc56f20268bfb329ccd891822e2e70dd70fe21fc7101deb3fa30c34a08450c
SHA512da024ccb50d4a2a5355b7712ba896df850cee57aa4ada33aad0bae6960bcd1e5e3cee9488371ab6e19a2073508fbb3f0b257382713a31bc0947a4bf1f7a20be4
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Filesize
20KB
MD5849f2c3ebf1fcba33d16153692d5810f
SHA11f8eda52d31512ebfdd546be60990b95c8e28bfb
SHA25669885fd581641b4a680846f93c2dd21e5dd8e3ba37409783bc5b3160a919cb5d
SHA51244dc4200a653363c9a1cb2bdd3da5f371f7d1fb644d1ce2ff5fe57d939b35130ac8ae27a3f07b82b3428233f07f974628027b0e6b6f70f7b2a8d259be95222f5
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Filesize
18KB
MD5b52a0ca52c9c207874639b62b6082242
SHA16fb845d6a82102ff74bd35f42a2844d8c450413b
SHA256a1d1d6b0cb0a8421d7c0d1297c4c389c95514493cd0a386b49dc517ac1b9a2b0
SHA51218834d89376d703bd461edf7738eb723ad8d54cb92acc9b6f10cbb55d63db22c2a0f2f3067fe2cc6feb775db397030606608ff791a46bf048016a1333028d0a4
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Filesize
135KB
MD59e682f1eb98a9d41468fc3e50f907635
SHA185e0ceca36f657ddf6547aa0744f0855a27527ee
SHA256830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d
SHA512230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed
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Filesize
429KB
MD5109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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Filesize
1.2MB
MD5556ea09421a0f74d31c4c0a89a70dc23
SHA1f739ba9b548ee64b13eb434a3130406d23f836e3
SHA256f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb
SHA5122481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2
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Filesize
81KB
MD57587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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Filesize
93KB
MD593e85d15ef93ddf8ac964f84d9bec664
SHA1e3d58cca51afd2449a11a8a18c5a0f871dbca59c
SHA256816bb9cdaa18ffba5dbcedf69298718caac8a4ff6c674300a9299d0584a236c9
SHA512acd703192f69af97cd6d288ad43b3b6dc6e711c7747f25af05a0f0fe3619b5c503857d0f6dbe93b4d5dd411b8f0a51cf25b8596396c756cf7f3faed57b00c49c