Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 18:07
Static task
static1
Behavioral task
behavioral1
Sample
26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win11ltsc2024-20260709-en
General
- Target 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe
- Size 218KB
- Sample260809-wqncqsbm2v
- SHA256 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb
- MD5 44ddc80c714f91959bcaa1aeb3cfe1d5
- SHA1 7a5ce656b36a081d0f93d5add93a9c8ddc329abf
- SHA512 33d7d52c606db4f42e9d67a67e1ac248b123c71be6c55ac97f5dbaf755e0b969b8edf619c8a4b7afcd9a951c3b8e580c93f4a90380467cad48300d8186ab6f1e
- SSDEEP 6144:LT4DtAX5NIc71RWI89tgqNw2Tn1LJ3kcMGuzIz39zl:LT35/z89lJCGl31l
- TLSH T1FB2412A07769D453E7C382730875A77A2FF9A1BA66249F076F023E0CBD92782550F312
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
-
217.217.97.75:8787
-
U1hmcTZViRT7
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
pid Process 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\subfolder1\\Coverlid.exe" 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 508 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe 508 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3ADD1653-EB32-4cb0-BBD7-DFA0ABB5ACCA}\Instance\ 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4268 wrote to memory of 2224 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe 89 PID 4268 wrote to memory of 508 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe 90 PID 4268 wrote to memory of 508 4268 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe 90 PID 508 wrote to memory of 2556 508 26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4268 -
C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"2⤵PID:2224
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-
C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:508 -
C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"C:\Users\Admin\AppData\Local\Temp\26fc8807ce9a5e6dc534c237d84c2ac7491755532a2078878bc8fb1695fcb2eb.exe"3⤵PID:2556
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nsl5D5B.tmp\System.dll
- Size 12KB
- SHA256 acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
- MD5 6e55a6e7c3fdbd244042eb15cb1ec739
- SHA1 070ea80e2192abc42f358d47b276990b5fa285a9
- SHA512 2d504b74da38edc967e3859733a2a9cacd885db82f0ca69bfb66872e882707314c54238344d45945dc98bae85772aceef71a741787922d640627d3c8ae8f1c35
- SSDEEP 192:MenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBaIwL:M8+Qlt70Fj/lQRY/9VjjgL
- TLSH T1BE428D1193B089F2F590593805A67F2A6FBEAC5C27E44A63CFE345853D702DFA47A243
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Kilometrical71.lnk
- Size 1006B
- SHA256 283afcef5f735597e6a7b0980d13b701dddf0640cf17eb32b69d6e52cf041d73
- MD5 d710a3ed84746584d2087c8b0f9749fc
- SHA1 e75c7a9f564d3084c788cc73b555ba2ae640f51a
- SHA512 acfc61e1e0a483cfa93a1c6d53238e13bcee9f79c83f32b80a4378b3e1df64ff8606e9eeadad96fc5aaa06211cc925214fe409f1554a7b297301eb13e08f5cc5
- TLSH T11A112B164ED11B20E3F69B76C0E92A29DB317C16EF959F4D0054914C2877B41EC65F2F
- MD5 SHA1 SHA512 TLSH