Analysis
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max time kernel
40s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21/06/2022, 03:18
Behavioral task
behavioral1
Sample
03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe
Resource
win10-20220414-en
General
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Target
03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe
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Size
5.2MB
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MD5
b1057feaae568f50eb9ff99a0fd2e545
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SHA1
b6e1d147b2f1564224a530b07af1681fa7a991e3
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SHA256
03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6
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SHA512
c69024ff4629f752af10f2a628580d616ec6e4db1986e95a45b523c1f30b72c361ee12744a152c01e7ad8fadf68146d1ef42300b4f3556efa6eefa0e6259c482
Malware Config
Extracted
recordbreaker
http://51.195.166.175/
Signatures
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Raccoon ver2 4 IoCs
Raccoon ver2.
resource yara_rule behavioral1/memory/1044-62-0x0000000000F70000-0x0000000001B33000-memory.dmp raccoon_v2 behavioral1/memory/1044-63-0x0000000000F70000-0x0000000001B33000-memory.dmp raccoon_v2 behavioral1/memory/1044-67-0x0000000000F70000-0x0000000001B33000-memory.dmp raccoon_v2 behavioral1/memory/1044-68-0x0000000000F70000-0x0000000001B33000-memory.dmp raccoon_v2 -
RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
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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 Recordbreaker Stealer CnC Checkin
suricata: ET MALWARE Recordbreaker Stealer CnC Checkin
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe -
Downloads MZ/PE file
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resource yara_rule behavioral1/memory/1044-54-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect behavioral1/memory/1044-60-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect behavioral1/memory/1044-62-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect behavioral1/memory/1044-63-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect behavioral1/memory/1044-67-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect behavioral1/memory/1044-68-0x0000000000F70000-0x0000000001B33000-memory.dmp vmprotect -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe -
Loads dropped DLL 3 IoCs
pid Process 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.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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resource yara_rule behavioral1/memory/1044-54-0x0000000000F70000-0x0000000001B33000-memory.dmp themida behavioral1/memory/1044-60-0x0000000000F70000-0x0000000001B33000-memory.dmp themida behavioral1/memory/1044-62-0x0000000000F70000-0x0000000001B33000-memory.dmp themida behavioral1/memory/1044-63-0x0000000000F70000-0x0000000001B33000-memory.dmp themida behavioral1/memory/1044-67-0x0000000000F70000-0x0000000001B33000-memory.dmp themida behavioral1/memory/1044-68-0x0000000000F70000-0x0000000001B33000-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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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 684 1044 WerFault.exe 26 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe 1044 03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.exe"C:\Users\Admin\AppData\Local\Temp\03a8531989aeeec1befecbba4f3ee218309306224bd22b7e52104537e32bacd6.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
PID:1044 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1044 -s 8202⤵
- Program crash
PID:684
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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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