Analysis
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max time kernel
114s -
max time network
133s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
04-12-2022 13:43
Behavioral task
behavioral1
Sample
e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe
Resource
win10v2004-20220812-en
General
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Target
e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe
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Size
1.1MB
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MD5
78ab95671fdd7dd9fd5f511a4bbfb9f8
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SHA1
677aa1fa3ca19bbd1454906a06701ed7270d0dcc
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SHA256
e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427
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SHA512
1ebe31de8cc92b4d3f201fa042985dd243162ccbc49938ae541e552d8d318491a9142041eb3b8bc51d5e825ab39094e95b6ee58146e0b39aaab46485bd3ff57a
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SSDEEP
24576:4KUPqFwkyC17SRkgH3D19KDAwnsvi846RvBlSZBvqT/9L1:7UPqFwkP1AkgHz/KD/nsvimJ5T/7
Malware Config
Signatures
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resource yara_rule behavioral2/memory/3256-132-0x0000000000400000-0x000000000056F000-memory.dmp upx behavioral2/memory/3256-133-0x0000000000400000-0x000000000056F000-memory.dmp upx behavioral2/memory/3256-136-0x0000000000400000-0x000000000056F000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\I: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\L: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\Q: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\U: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\A: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\B: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\E: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\F: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\W: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\Z: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\J: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\K: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\M: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\R: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\T: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\Y: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\G: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\H: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\N: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\P: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\O: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\S: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\V: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe File opened (read-only) \??\X: e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A32D5CD4-76C1-11ED-AECB-4AA92575F981} = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4056 vlc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4056 vlc.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 3256 e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe Token: 33 3872 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3872 AUDIODG.EXE Token: 33 4056 vlc.exe Token: SeIncBasePriorityPrivilege 4056 vlc.exe -
Suspicious use of FindShellTrayWindow 15 IoCs
pid Process 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe -
Suspicious use of SendNotifyMessage 8 IoCs
pid Process 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe 4056 vlc.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3428 IEXPLORE.EXE 3428 IEXPLORE.EXE 4056 vlc.exe 4056 vlc.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3256 wrote to memory of 4056 3256 e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe 78 PID 3256 wrote to memory of 4056 3256 e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe 78 PID 3256 wrote to memory of 3428 3256 e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe 79 PID 3256 wrote to memory of 3428 3256 e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe 79 PID 3428 wrote to memory of 4984 3428 IEXPLORE.EXE 80 PID 3428 wrote to memory of 4984 3428 IEXPLORE.EXE 80 PID 3428 wrote to memory of 4984 3428 IEXPLORE.EXE 80
Processes
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C:\Users\Admin\AppData\Local\Temp\e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe"C:\Users\Admin\AppData\Local\Temp\e1fbdb964f35e70470cd9c0d83464303ab4e48bd5611dd8a9fb3c0bc2d62e427.exe"1⤵
- Checks computer location settings
- Enumerates connected drives
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3256 -
C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\cb120_toWMV_38.wmv"2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:4056
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C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE" "http://www.a88b88.com/--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------.asp?id=wii&md5=65d8e3b9b3facdcee8d9c707680abc33"2⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3428 CREDAT:17410 /prefetch:23⤵PID:4984
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x2f4 0x4681⤵
- Suspicious use of AdjustPrivilegeToken
PID:3872
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
378KB
MD581ee578130211d23562d6b46653dd72f
SHA1fec58fd5e0baa01cf9796db9ef31c1072a897c6a
SHA25631fd5e59d735ca324f03b1d4391cefcb3ae46d54df927535925aabdeb7138c43
SHA512c002e51c8891a31997a56f58c23a6d5b98eafda90de64588af3a25c716640a4e1917dd202314cdb5c0f42dca240ff9d62c652a03fde54d2157a12bb72439e9f2