Resubmissions
30-07-2024 12:17
240730-pgdcvasfjf 1030-07-2024 12:17
240730-pf9dwssfjb 730-07-2024 09:41
240730-lnrl9szhjf 10Analysis
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max time kernel
46s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
30-07-2024 12:17
Behavioral task
behavioral1
Sample
Chrome.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
Chrome.exe
Resource
win10-20240611-en
Behavioral task
behavioral3
Sample
Chrome.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral4
Sample
Chrome.exe
Resource
win11-20240729-en
General
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Target
Chrome.exe
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Size
4.6MB
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MD5
d64c8e67eaa9bb5b648f7aa4731c2924
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SHA1
81d7eec4135a2cde0d29bf651eb3b8e1f4093a93
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SHA256
a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794
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SHA512
1df2e7066fa804f992edb9f7e15256ab2348a0eb42068de9b987806b220e2ffc6736762fc9b4c37c6277738ca6983e8357d9b8aa6a63317d09a8fac6f54427d4
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SSDEEP
98304:jDN3JGPpKZ9AaI7S2DLpKNbEoH6ErTQyQzPm1XUxIyiVni:jJ34UwF7S2DLpKNEoHj58PDxdii
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 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2960-81-0x0000000010000000-0x000000001002A000-memory.dmp fatalrat -
Processes:
resource yara_rule behavioral1/files/0x0008000000015e21-6.dat aspack_v212_v242 -
Deletes itself 1 IoCs
Processes:
cmd.exepid Process 1580 cmd.exe -
Executes dropped EXE 5 IoCs
Processes:
uzj.exePTvrst.exespolsvt.exespolsvt.exesvcoth.exepid Process 2084 uzj.exe 2824 PTvrst.exe 2616 spolsvt.exe 2960 spolsvt.exe 1860 svcoth.exe -
Loads dropped DLL 5 IoCs
Processes:
Chrome.exeuzj.exePTvrst.exespolsvt.exepid Process 2068 Chrome.exe 2084 uzj.exe 2824 PTvrst.exe 2616 spolsvt.exe 2616 spolsvt.exe -
Processes:
resource yara_rule behavioral1/memory/2068-0-0x0000000000400000-0x000000000042D000-memory.dmp upx behavioral1/memory/2068-95-0x0000000000400000-0x000000000042D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
uzj.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sougoupinyin = "C:\\Users\\Public\\Documents\\sougou\\PTvrst.exe" uzj.exe -
Processes:
uzj.exedescription ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA uzj.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
PTvrst.exespolsvt.exedescription pid Process procid_target PID 2824 set thread context of 2616 2824 PTvrst.exe 34 PID 2616 set thread context of 2960 2616 spolsvt.exe 35 PID 2616 set thread context of 1860 2616 spolsvt.exe 39 -
Drops file in Program Files directory 64 IoCs
Processes:
Chrome.exedescription ioc Process File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Esl\AiodLite.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ACE.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Javascripts\JSByteCodeWin.bin Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\reflow.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\bl.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_shared.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\DigSig.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\VDK10.SYD Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\forms_received.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOffNotificationInTray.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Acrofx32.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annots.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\PDDom.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ahclient.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AXSLE.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Browser Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOffNotificationInAcrobat.gif Chrome.exe File opened for modification C:\Program Files (x86)\ChromeSetup.exe Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\BIB.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\icudt36.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\AdobeID.pdf Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\SendMail.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\VDK10.CMP Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\add_reviewer.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\open_original_form.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\CoolType.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\HLS.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP\MCIMPP.mpp Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Spelling.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Onix32.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Search.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\VDK10.STC Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\prc Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\ended_review_or_form.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_same_reviewers.gif Chrome.exe File created C:\Program Files (x86)\ChromeSetup.exe Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\SaveAsRTF.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\RTC.der Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\forms_super.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\pdf.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroForm\PMP\DataMatrix.pmp Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Annotations\Stamps\ENU\StandardBusiness.pdf Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\prcr.x3d Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\sqlite.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\br.gif Chrome.exe File opened for modification C:\Program Files (x86)\uzj.exe Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AdobeUpdater.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\DVA.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\2d.x3d Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.dll Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroForm\adobepdf.xdc Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\EScript.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\ReadOutLoud.api Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\info.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOnNotificationInTray.gif Chrome.exe File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\vdk150.dll Chrome.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 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.exesvcoth.exeChrome.exeuzj.exePTvrst.exespolsvt.exespolsvt.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svcoth.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Chrome.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language uzj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PTvrst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spolsvt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language spolsvt.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
uzj.exepid Process 2084 uzj.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
spolsvt.exedescription pid Process Token: SeDebugPrivilege 2960 spolsvt.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
uzj.exePTvrst.exepid Process 2084 uzj.exe 2084 uzj.exe 2824 PTvrst.exe 2824 PTvrst.exe -
Suspicious use of WriteProcessMemory 53 IoCs
Processes:
Chrome.exeuzj.exePTvrst.exespolsvt.exedescription pid Process procid_target PID 2068 wrote to memory of 2084 2068 Chrome.exe 30 PID 2068 wrote to memory of 2084 2068 Chrome.exe 30 PID 2068 wrote to memory of 2084 2068 Chrome.exe 30 PID 2068 wrote to memory of 2084 2068 Chrome.exe 30 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2084 wrote to memory of 2824 2084 uzj.exe 33 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2824 wrote to memory of 2616 2824 PTvrst.exe 34 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2616 wrote to memory of 2960 2616 spolsvt.exe 35 PID 2068 wrote to memory of 1580 2068 Chrome.exe 36 PID 2068 wrote to memory of 1580 2068 Chrome.exe 36 PID 2068 wrote to memory of 1580 2068 Chrome.exe 36 PID 2068 wrote to memory of 1580 2068 Chrome.exe 36 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39 PID 2616 wrote to memory of 1860 2616 spolsvt.exe 39
Processes
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C:\Users\Admin\AppData\Local\Temp\Chrome.exe"C:\Users\Admin\AppData\Local\Temp\Chrome.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Program Files (x86)\uzj.exe"C:\Program Files (x86)\uzj.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2084 -
C:\Users\Public\Documents\sougou\PTvrst.exeC:\Users\Public\Documents\sougou\PTvrst.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Users\Public\Documents\sougou\spolsvt.exeC:\Users\Public\Documents\sougou\spolsvt.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2616 -
C:\Users\Public\Documents\dd\spolsvt.exeC:\Users\Public\Documents\dd\spolsvt.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2960
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C:\Users\Public\Documents\uu\svcoth.exeC:\Users\Public\Documents\uu\svcoth.exe5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1860
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd" "2⤵
- Deletes itself
- System Location Discovery: System Language Discovery
PID:1580
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
184B
MD5a994798dc8a4e132599c71a27a3e5fed
SHA177a1dd9802e75e2a576a7ce7d0205d38ebafda4e
SHA256b579bef02bd91e9b29bcad36144ba04588585614bfcef60c6feb67bf4982b185
SHA5129b398669b1f1a300e609cdfcfd430214dfbe13c0f822e1d34ae9a7171c51e18a3f2781107c7ace5c0dbf47b26a9e70b9fd93acd345ee9ded9c235ac9058ce154
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Filesize
16KB
MD5cdce4713e784ae069d73723034a957ff
SHA19a393a6bab6568f1a774fb753353223f11367e09
SHA256b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8
SHA5120a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f
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Filesize
196KB
MD5e3ed6c93f7296d2716191dc34e4c62b1
SHA13921c051dc50365d018f5b9cd7cfdc585bfda2f3
SHA25648b700a1c7f950271a2c7a0ef9a3503c50221d7703f7e07b6d2997ae2f67c81c
SHA512dccdd41657f53d0d4746c84271175d4c92b29fc5b86d3a384523dd61645a9239f2666d62568c89aabc77b78dead6c9c9d027a780b90fc9b497ad88580dc90ac1
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Filesize
3.4MB
MD5175d6f3e75b3cecdc5633ae0524ef496
SHA1745459089543ef9e523af038064085b2e4af0fee
SHA256033f23eac17d2a06675459abe2ded52b42f29cfa720c2ccfb507bac2d38988f0
SHA5125f32dba9ad45cbc6845bfe4f25102947c103072a4258e7e10dd94c888c180fa5d23e80091a5e6b43c7aaa5976133ac83ea17656e4b9c0d2ee1eca8ef5dcdc79f
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Filesize
9KB
MD5523d5c39f9d8d2375c3df68251fa2249
SHA1d4ed365c44bec9246fc1a65a32a7791792647a10
SHA25620e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78
SHA512526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4