Analysis
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max time kernel
68s -
max time network
75s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
29-06-2022 18:57
Static task
static1
Behavioral task
behavioral1
Sample
Setup.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Setup.exe
Resource
win10v2004-20220414-en
General
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Target
Setup.exe
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Size
385.8MB
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MD5
0f8d777f14046968f8bbe6acde833ce5
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SHA1
d9a357693ef6b52f9fbeecd48c1a56de23c14103
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SHA256
4e151b557e07f55f52583a6aa3a06288c7de0e35848414c1001f179ceb5fbed3
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SHA512
af8a8e6a070fca90ac38af8dc0b56106d093341d9a89bf4f8bfed49f13c1db27f47ad2b2b908e1650845ca6461bb59039cd33475c7b65823479107b61c5aea82
Malware Config
Extracted
recordbreaker
http://45.67.34.152/
http://45.133.216.249/
Signatures
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RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
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suricata: ET MALWARE Generic .bin download from Dotted Quad
suricata: ET MALWARE Generic .bin download from Dotted Quad
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suricata: ET MALWARE Generic Stealer Config Download Request
suricata: ET MALWARE Generic Stealer Config Download Request
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suricata: ET MALWARE Win32/RecordBreaker CnC Checkin
suricata: ET MALWARE Win32/RecordBreaker CnC Checkin
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
Setup.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Setup.exe -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
H16z0x08.exepid Process 684 H16z0x08.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
Setup.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Setup.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Setup.exe -
Loads dropped DLL 4 IoCs
Processes:
Setup.exepid Process 1724 Setup.exe 1724 Setup.exe 1724 Setup.exe 1724 Setup.exe -
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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Processes:
resource yara_rule behavioral1/memory/1724-56-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-55-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-57-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-58-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-59-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-61-0x0000000000B60000-0x0000000001455000-memory.dmp themida behavioral1/memory/1724-71-0x0000000000B60000-0x0000000001455000-memory.dmp themida -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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Processes:
Setup.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Setup.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
Processes:
Setup.exeH16z0x08.exepid Process 1724 Setup.exe 684 H16z0x08.exe 684 H16z0x08.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 1948 684 WerFault.exe 29 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid Process 1508 schtasks.exe 1932 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Setup.exeH16z0x08.exepid Process 1724 Setup.exe 1724 Setup.exe 1724 Setup.exe 684 H16z0x08.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
Setup.exeH16z0x08.exedescription pid Process procid_target PID 1724 wrote to memory of 684 1724 Setup.exe 29 PID 1724 wrote to memory of 684 1724 Setup.exe 29 PID 1724 wrote to memory of 684 1724 Setup.exe 29 PID 1724 wrote to memory of 684 1724 Setup.exe 29 PID 684 wrote to memory of 1508 684 H16z0x08.exe 30 PID 684 wrote to memory of 1508 684 H16z0x08.exe 30 PID 684 wrote to memory of 1508 684 H16z0x08.exe 30 PID 684 wrote to memory of 1508 684 H16z0x08.exe 30 PID 684 wrote to memory of 996 684 H16z0x08.exe 32 PID 684 wrote to memory of 996 684 H16z0x08.exe 32 PID 684 wrote to memory of 996 684 H16z0x08.exe 32 PID 684 wrote to memory of 996 684 H16z0x08.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\Setup.exe"C:\Users\Admin\AppData\Local\Temp\Setup.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Users\Admin\AppData\Roaming\H16z0x08.exe"C:\Users\Admin\AppData\Roaming\H16z0x08.exe"2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:684 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 5 /tn "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\cellexprev.exe"3⤵
- Creates scheduled task(s)
PID:1508
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C:\Windows\SysWOW64\schtasks.exe/C /Query /XML /TN "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}"3⤵PID:996
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /tn "ExcelUpdateTaskUA{T0U3T7L6V-L9N0-X6X8D-V5S0-X3L4FL9G9S}" /XML "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\yqtfncwkobl.xml"3⤵
- Creates scheduled task(s)
PID:1932
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 684 -s 1923⤵
- Program crash
PID:1948
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
9.4MB
MD52481b1a178d02579fae34366bf6b37b7
SHA1353a24cbebfd5ef95b127a3b41be8100d5eaa45c
SHA2563cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7
SHA512f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e
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Filesize
9.4MB
MD52481b1a178d02579fae34366bf6b37b7
SHA1353a24cbebfd5ef95b127a3b41be8100d5eaa45c
SHA2563cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7
SHA512f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e
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Filesize
612KB
MD5f07d9977430e762b563eaadc2b94bbfa
SHA1da0a05b2b8d269fb73558dfcf0ed5c167f6d3877
SHA2564191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862
SHA5126afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf
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Filesize
1.9MB
MD5f67d08e8c02574cbc2f1122c53bfb976
SHA16522992957e7e4d074947cad63189f308a80fcf2
SHA256c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e
SHA5122e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5
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Filesize
1.0MB
MD5dbf4f8dcefb8056dc6bae4b67ff810ce
SHA1bbac1dd8a07c6069415c04b62747d794736d0689
SHA25647b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68
SHA512b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1
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Filesize
9.4MB
MD52481b1a178d02579fae34366bf6b37b7
SHA1353a24cbebfd5ef95b127a3b41be8100d5eaa45c
SHA2563cea6eaf23e94e38d790a9ccf43e490f8ad3da3eb920e3a967d18947905b60b7
SHA512f952943789c7eee14e5f2e9296d6646f42739dd9c1d086e24e02d7edb4f712d55be9c683abcf1a6b2d0eedef49c588c17635e0ca16b16f06ef8952ad652b4f3e