Analysis
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max time kernel
102s -
max time network
104s -
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 19:13
Static task
static1
Behavioral task
behavioral1
Sample
dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll
Resource
win7-20240704-en
General
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Target
dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll
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Size
955KB
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MD5
dac5e2710f0d5bca2e7e5b25d2a03ba0
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SHA1
97b600e5737f4308f1a91ebaed7c475785fc551a
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SHA256
6e9594960e80d1ec51eb7d8096cf1108265e57d9bb1f272ef0e4f6436ea4a59a
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SHA512
67e805799f0d104a89b4130817e3a83131b24eeb4a8e122a4e3d85ff06421c87312ba0afa5cddac069696466a05595b5e05a97127dc1e0dcdef3ad61abd8f1a6
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SSDEEP
24576:wr37G4TrusL4rCvwHIo2WEyMz7yYK6ZSmd9saBjAnVFpMrEH7c:w2xrCvPxzvbsiUFY
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023466-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0009000000023466-1.dat acprotect -
Loads dropped DLL 2 IoCs
pid Process 2500 rundll32.exe 2500 rundll32.exe -
resource yara_rule behavioral2/files/0x0009000000023466-1.dat upx behavioral2/memory/2500-6-0x0000000001400000-0x0000000001430000-memory.dmp upx behavioral2/memory/2500-10-0x0000000001400000-0x0000000001430000-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 3940 2500 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 2500 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1748 wrote to memory of 2500 1748 rundll32.exe 84 PID 1748 wrote to memory of 2500 1748 rundll32.exe 84 PID 1748 wrote to memory of 2500 1748 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1748 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2500 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 7163⤵
- Program crash
PID:3940
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2500 -ip 25001⤵PID:2608
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab