Analysis
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max time kernel
111s -
max time network
121s -
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 15:56
Static task
static1
Behavioral task
behavioral1
Sample
fb87dd2eb0923a5d55af15672832e0c0N.dll
Resource
win7-20240704-en
General
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Target
fb87dd2eb0923a5d55af15672832e0c0N.dll
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Size
4.0MB
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MD5
fb87dd2eb0923a5d55af15672832e0c0
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SHA1
40e16fc80764604fdecdf6586907b6a7fa7982af
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SHA256
e9f5b8a40dfecccf1dade9264d687582f56aea19b2e8212779ee960325986330
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SHA512
d981867a14c42420e196f7422ebdb35affb5c8fa34cf1bad1bbd9a9a576956e4b7b99b77e280262f6a9f95ad95568cbce4b3eb2a096bcb10950619398cdaf5d2
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SSDEEP
49152:2L4EbUvI5jL53sdP+DaOVv8THIARyHqinLMTPfuQ1TAvO/HGzQkQSda/:2L4uqsLv/AkH7LMruQSyHlkQSk
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000e0000000229ae-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000e0000000229ae-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 4252 rundll32.exe -
resource yara_rule behavioral2/files/0x000e0000000229ae-1.dat upx behavioral2/memory/4252-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4252-8-0x0000000010000000-0x0000000010030000-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 4556 4252 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 4252 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 548 wrote to memory of 4252 548 rundll32.exe 84 PID 548 wrote to memory of 4252 548 rundll32.exe 84 PID 548 wrote to memory of 4252 548 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fb87dd2eb0923a5d55af15672832e0c0N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fb87dd2eb0923a5d55af15672832e0c0N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4252 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 7203⤵
- Program crash
PID:4556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4252 -ip 42521⤵PID:2892
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab