Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-10-2024 08:26
Static task
static1
Behavioral task
behavioral1
Sample
a.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
bypass_sandbox.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
bypass_sandbox.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
名单助手PDF.exe
Resource
win7-20240708-en
Behavioral task
behavioral6
Sample
名单助手PDF.exe
Resource
win10v2004-20241007-en
General
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Target
名单助手PDF.exe
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Size
6.3MB
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MD5
3ac0bdbd6f5c90b94980e3559ae419f5
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SHA1
6b01a0ced6191140830dcc8478f5a7a19d799fa5
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SHA256
6dc0f4a97c3f5e12b4de8b3b2d74afe5298679604077a0a9d62ac479c4b24923
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SHA512
14e9bbd5467f7e4f0aa9d69362a3763bb731c147a661ca4294d11a4704d58ca3b53f28023efbcc0051bc1c2518a917a12b9a64135b08abc4cded85676752846c
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SSDEEP
98304:6YYX5YQmdT8PRv0J0hx09BSpKki9jBGrisYdMLU9V09DsL2qEKqjbS:piby94pFKjBGr97eLT
Malware Config
Signatures
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FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
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Fatal Rat payload 2 IoCs
Processes:
resource yara_rule behavioral6/memory/3696-63-0x0000000010000000-0x000000001002A000-memory.dmp fatalrat behavioral6/memory/3696-68-0x00000000025F0000-0x0000000002622000-memory.dmp fatalrat -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
FWF_FYF.exepid Process 3696 FWF_FYF.exe -
Loads dropped DLL 1 IoCs
Processes:
FWF_FYF.exepid Process 3696 FWF_FYF.exe -
Drops file in System32 directory 1 IoCs
Processes:
FWF_FYF.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\FWF_FYF.exe FWF_FYF.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
Processes:
FWF_FYF.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language FWF_FYF.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
FWF_FYF.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 FWF_FYF.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz FWF_FYF.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
名单助手PDF.exeFWF_FYF.exepid Process 2328 名单助手PDF.exe 2328 名单助手PDF.exe 2328 名单助手PDF.exe 2328 名单助手PDF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe 3696 FWF_FYF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
FWF_FYF.exedescription pid Process Token: SeDebugPrivilege 3696 FWF_FYF.exe Token: SeDebugPrivilege 3696 FWF_FYF.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\名单助手PDF.exe"C:\Users\Admin\AppData\Local\Temp\名单助手PDF.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
PID:2328
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C:\ProgramData\AUATDT\FWF_FYF.exeC:\ProgramData\AUATDT\FWF_FYF.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3696
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
179KB
MD57e52644fee7705b81725a99e58e9f26c
SHA15650a086edca287a7881beab9ee3630e069b0ba7
SHA256b9d12baf19a0c261398a89bb6db6600756cb9122ad08b70534ad70a245d61933
SHA512d8f063ad6e077f348f0c80a6bd214d063ff108e9432b33cb3a56196aebcda8888a55bd65ff2cce2dd68f9783181b9293f01f02fbcecdda9dade793a248aacb90
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Filesize
1.6MB
MD5e603041002b66bcd011876f1f73ef712
SHA10f14e961f06a3667eac666e490adb096db13c694
SHA256209c382b56c1bcb6ef5337c94ebe7d9ce38a9286567a463cce679e476d250c00
SHA512ec879c200e6ec5f305be4404d5a95b6651729716a94e553e86f7600170c876d1298623813e264e96cf852cc10beb7bc90926957399b8fdab686ab406f957ecfa
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Filesize
1.2MB
MD5eab35abc0ae31018b3f0c64fb93b785b
SHA1be2468ea6292889e8c58306aacbc875147e29a00
SHA2565b8e39728ad4b2ec68d5b3e0af4dfa914a26812bbdca20198d3fe0d40397126a
SHA512c1555252c93c314a8d26ef018afcb54937abc0b5e755fbc3d6a3bcda7ec796fddca48ffb215cdcb1a92edb2361122d273b1c40987cd2f4c2fe754a2be8f6ae06
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Filesize
142KB
MD5bbaea75e78b80434b7cd699749b93a97
SHA1c7d151758cb88dee39dbb5f4cd30e7d226980dde
SHA256c9a1c52f5f5c8deef76b8e989c6a377f00061fa369cbd1cee7f53f8f03295f5c
SHA5127f41846d61452c73566554ba5f6ef356e757ff4c292ad68bbcc1b84f736c02c6b0bc52e13270e5d7be4cde743d40cfc281028d4a0e322fbeecd9b786d08bac3d
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Filesize
797B
MD59c5bd2b9206df928efd1f003ace6668e
SHA1c63a5430aa28c95a753a45631cc9690803cace7c
SHA256fb2e9e9cb1884a1e47a59540259ea9948c27ed6b77d10d3c12b81bbb40808a63
SHA512996b139805ce63a4882811ea6b862013521a6b5f856c9e36d4168ab8bb5819a33c6e55ba45c3740e41e0cc7409f5a72dd313fba2d6bdba11fcbeabbf870f3c5c
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Filesize
907KB
MD5849ee4e102ea0c004ba2dbd79d3303d9
SHA10164557eb9e10e90b5f71adf414b38ea437d5911
SHA256c283cd4c2fa9a5bd67df2987555fe90d3fd46effbec5cdc1d67eac25b195e18c
SHA51214a7f4e9467b6f15d91ebb8ab3074b63afbb3f3ecbd2b134f6e09c56e977a6d9520a3a546e028cad89fc4292d0fa1ee078bbaad5cf815f3173cd0aff477c531f