Analysis
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max time kernel
101s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
15-08-2024 17:25
Static task
static1
Behavioral task
behavioral1
Sample
2d7bb43807d1d6c6d92fef62762a1070N.dll
Resource
win7-20240708-en
General
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Target
2d7bb43807d1d6c6d92fef62762a1070N.dll
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Size
955KB
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MD5
2d7bb43807d1d6c6d92fef62762a1070
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SHA1
05984409b36fe97343aeb8d7f728edd4ca90b8d4
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SHA256
c9587995f4b069f1efc68801c1c2bf1dfa0a7845604baa62b5b60cf011652d9b
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SHA512
ef6e3424cd4e8b5ebc9a6f0f721f50423c2f03afe8e2dc7068250431f84a4293cab45aa567ca93ffd73c2ceac8c3c9b276f17cfdfa92b3bcb09fa2e78fe57f60
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SSDEEP
24576:wr37G4Tr6/L4rCvwHIo2WEyMz7yYK6ZSmd9saBpAnVFpMrEH7S:wy0rCvPxzvbsIUFG
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023383-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0009000000023383-1.dat acprotect -
Loads dropped DLL 2 IoCs
pid Process 224 rundll32.exe 224 rundll32.exe -
resource yara_rule behavioral2/files/0x0009000000023383-1.dat upx behavioral2/memory/224-6-0x0000000001220000-0x0000000001250000-memory.dmp upx behavioral2/memory/224-10-0x0000000001220000-0x0000000001250000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4924 224 WerFault.exe 84 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 224 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4152 wrote to memory of 224 4152 rundll32.exe 84 PID 4152 wrote to memory of 224 4152 rundll32.exe 84 PID 4152 wrote to memory of 224 4152 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2d7bb43807d1d6c6d92fef62762a1070N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4152 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\2d7bb43807d1d6c6d92fef62762a1070N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:224 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 7163⤵
- Program crash
PID:4924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 224 -ip 2241⤵PID:3324
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab