Analysis
- max time kernel
150s - max time network
135s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 17:10
Behavioral task
behavioral1
Sample
caffeine-1.98-installer.exe
Resource
win10v2004-20260513-en
18 signatures
150 seconds
General
- Target caffeine-1.98-installer.exe
- Size 2.0MB
- Sample260810-vpsemadp4w
- SHA256 3574c0d5406f25169850dfe6e05d202c9487b8529d2b646ad9f890ca32ae2895
- MD5 5c392193852de6753d6b7adc19f7be64
- SHA1 f9b5257d3a611aa1fa2ecdf68650cc8471c7cf52
- SHA512 06c0f3aa8fd88bdd3fe6bacdf8252987152313fc1656e9a4da797358150df3d4918a9b69d648cb9c1f85c1aeebb952d3dd0206bcad048eef477bfac01e1f8116
- SSDEEP 49152:xuI2h0919WRHcTeynRkfg7ve+AhrWzOU2:x5O0919WR8zaQe+UrEOU2
- TLSH T12AA5D03FB28B653EE06E5A3A7A72E110583B7A6165138C5696F4C88CCF254701E3F787
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4440 caffeine-1.98-installer.tmp - Checks for any installed AV software in registry 1 TTPs 9 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\AVAST Software\Avast caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SOFTWARE\Avast Software\Avast caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\AVG\AV\Dir caffeine-1.98-installer.tmp Key opened \REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\SOFTWARE\AVAST Software\Avast caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Avast Software\Avast caffeine-1.98-installer.tmp Key opened \REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\SOFTWARE\Avast Software\Avast caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SOFTWARE\AVG\AV\Dir caffeine-1.98-installer.tmp Key opened \REGISTRY\USER\S-1-5-21-3986082593-3624157295-3514260330-1000\SOFTWARE\AVG\AV\Dir caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\AVAST Software\Avast caffeine-1.98-installer.tmp - System Location Discovery: System Language Discovery 1 TTPs 2 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 caffeine-1.98-installer.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language caffeine-1.98-installer.exe - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/4796-0-0x0000000000320000-0x00000000003FC000-memory.dmp innosetup behavioral2/memory/4796-8-0x0000000000320000-0x00000000003FC000-memory.dmp innosetup - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 caffeine-1.98-installer.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ caffeine-1.98-installer.tmp - Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 11 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp 4440 caffeine-1.98-installer.tmp - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4440 caffeine-1.98-installer.tmp - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4796 wrote to memory of 4440 4796 caffeine-1.98-installer.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\caffeine-1.98-installer.exe"C:\Users\Admin\AppData\Local\Temp\caffeine-1.98-installer.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Users\Admin\AppData\Local\Temp\is-8F4TIBMS6B.tmp\caffeine-1.98-installer.tmp"C:\Users\Admin\AppData\Local\Temp\is-8F4TIBMS6B.tmp\caffeine-1.98-installer.tmp" /SL5="$601B4,848247,840704,C:\Users\Admin\AppData\Local\Temp\caffeine-1.98-installer.exe"2⤵
- Executes dropped EXE
- Checks for any installed AV software in registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:4440
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-8F4TIBMS6B.tmp\caffeine-1.98-installer.tmp
- Size 4.1MB
- SHA256 3a62ae0d102cff66fba0a1f0b9bcdf116ad369c3c4f0212eb21a53c766c75a7d
- MD5 fa1c977a4003cc0793201a6f1711bb6d
- SHA1 99687859fe21ab2c851da864ba0c90d72862ca57
- SHA512 3fdd7887b940c005f54535e3d229d0c2f456bd9b2d28acc399c92078ec45adc334e065faa212d08fbd9495224b1767b18b1bde59150a32415df27d9727f59959
- SSDEEP 98304:fYU5hnuOajWwMPdCpepI3GrwrA+Jz333E:JxuHjWfZIzc
- TLSH T1F5168F03B388753EE4671A3A583FA284983F7A213A26CD4F6BF40D5C8F395416D2A757
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-U55NQ01Z2I.tmp\100.png
- Size 42KB
- SHA256 2ddd50ca3bb30387c309b0a627cc14f2820352679caa1d59f0dd35aed9540453
- MD5 faff96fb8080a98bd1def3c4f9cce9c1
- SHA1 466c66dfaed49d93dd7d8a1e42919a4f03613efa
- SHA512 ad87ccc0bcb0115d5e7255935c5bd2b5eeb85b75f46206987d85f0f5e04afce054b0b3cee3d7577039db6ddbff1f0fdfdca657b7877376e4f97c80c5ed7514b7
- SSDEEP 768:53E5YnNz2SLHvDYgWfGHV8L77Yy/oksC+x8+RfWpzrdYnsi2anUpMQb3HGJ2:536Ynl2SLrYHAWHDgEqCSskn0nqA
- TLSH T11613F1B8B8DE416DDDDED6B8FCE66FF564816437CC84D1EA800CB028518E784366636B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-U55NQ01Z2I.tmp\101.png
- Size 51KB
- SHA256 3f63f320e919830fb21fff8dbd82509ecc8330c89513163daedb1b7687a0a529
- MD5 958233a25ac0c23fae9451963eca0de5
- SHA1 8801e6dca9e4e4ad1f5b49caa097733877cf2e2e
- SHA512 996177a1a878ca82c1ce02f8937f51285aa9b7c92471fe9c19b41892739e82aaaa7ebcb7f396d6d777da822578b1db1fea893ed55708521e4b8e31a81cacda0b
- SSDEEP 1536:l7LeXprR91MWpD5Ko2ORwQWwyJUcbWb7H:ApzWTo2ORohKPH
- TLSH T1E33302A0B153C51FBA8B5211D2043975776E92F6F860FF4873CA016CAEE5D415B173CA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-U55NQ01Z2I.tmp\image
- Size 17KB
- SHA256 f03b37effdbaa5d978f558c561a6dea19fdf36748d62a77a8fb91ad2e1fe6ac1
- MD5 d9dda53eec65cda90219d5c66c9ee5e9
- SHA1 c570b9f94ad09603311bf3306f359ed7870bdd85
- SHA512 b4e172e73c15f1170148628254f53c47b6f24645a7d6ea5db556a51a30f2b103ce54d6237ef9c27647c146f85d48f2a1a0e1312daf24e7584426102f68cf2395
- SSDEEP 384:keTscQ1q2fuwbOOOFfJIHNTwdJ/+5/v+lXXXXXXD9e+t:dTsLbefJmTwdZ+9MXXXXXXl
- TLSH T1CB728DF893110D67F39BFB7BC7C4677182838F592356DA4D20A2AF6259793C024E818B
- MD5 SHA1 SHA512 SSDEEP TLSH