Analysis
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max time kernel
105s -
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 21:12
Static task
static1
Behavioral task
behavioral1
Sample
e816297005306d6552171c37cb30b830N.dll
Resource
win7-20240729-en
General
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Target
e816297005306d6552171c37cb30b830N.dll
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Size
1.7MB
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MD5
e816297005306d6552171c37cb30b830
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SHA1
817e0f414317aba62f22813c8def0f02c9a4316c
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SHA256
35551ef819ecc4815060fff9ca916c9b5bfae5c7a8680878a207ba348d0830cf
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SHA512
5e5a27e91f65bb52d647ee33fac47fc944adeb5ae86ae157cf40d5d962be52caf3ff7a11912ec7824010a9bd85050388839bf98f2123618d2beec5d95a5b4367
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SSDEEP
24576:z2o6ffPI+fCYYN6E7KVocLt++flHnR9TPbK6OrEH7y:zv1YYNfKyc3flHnR9TPbK6I
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023410-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0008000000023410-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 3088 rundll32.exe -
resource yara_rule behavioral2/files/0x0008000000023410-1.dat upx behavioral2/memory/3088-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/3088-8-0x0000000010000000-0x0000000010030000-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 2 IoCs
pid pid_target Process procid_target 4544 3088 WerFault.exe 84 2716 3088 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 3088 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2436 wrote to memory of 3088 2436 rundll32.exe 84 PID 2436 wrote to memory of 3088 2436 rundll32.exe 84 PID 2436 wrote to memory of 3088 2436 rundll32.exe 84
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\e816297005306d6552171c37cb30b830N.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2436 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\e816297005306d6552171c37cb30b830N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3088 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 7523⤵
- Program crash
PID:4544
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 7603⤵
- Program crash
PID:2716
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3088 -ip 30881⤵PID:3772
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3088 -ip 30881⤵PID:708
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab