Analysis
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max time kernel
125s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
14-02-2024 03:38
Static task
static1
Behavioral task
behavioral1
Sample
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231129-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20231215-en
General
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Target
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe
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Size
1.1MB
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MD5
dbac614bdf786dd5741aaab9ea8006d7
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SHA1
4f49b045fe3b043d5f8541939ef66d611094b10d
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SHA256
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2
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SHA512
966a2038cb16dead59f3b44379d8fb2bb35f5888b10c74cafb8a28b8e9a029b0a5ec0d3c7d17a5915351014c7307e3989efb17120781dccbf7815a00d5789526
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SSDEEP
24576:KS5HuM8IqoMzMxDHEHsGhXwy54j3BjqgMQUWhypBR:f55XOHsG/54j3ZftUNBR
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 1 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exepid process 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
wab.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\samfundshjlper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Wips34\\kronprinserne.exe" wab.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Drops file in System32 directory 2 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exedescription ioc process File opened for modification C:\Windows\SysWOW64\threshes.uds 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe File opened for modification C:\Windows\SysWOW64\lohoch.gim 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
Processes:
wab.exepid process 2548 wab.exe 2548 wab.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exewab.exepid process 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe 2548 wab.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exedescription pid process target process PID 2348 set thread context of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe -
Drops file in Program Files directory 1 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exedescription ioc process File opened for modification C:\Program Files (x86)\Common Files\forbandelsernes\kln.lio 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe -
Drops file in Windows directory 3 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exedescription ioc process File opened for modification C:\Windows\Tnkepauses.tro 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe File opened for modification C:\Windows\resources\0409\enchasing.Pet 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe File opened for modification C:\Windows\Fonts\Forters67\Elektrotekniker.wra 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exepid process 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
wab.exepid process 2548 wab.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exedescription pid process target process PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe PID 2348 wrote to memory of 2548 2348 36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe wab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe"C:\Users\Admin\AppData\Local\Temp\36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\windows mail\wab.exe"C:\Users\Admin\AppData\Local\Temp\36bd481c4fa0c81766a46d47dc47bd538c2bbf91254092fe6f5cbea1d3bcb4d2.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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\Users\Admin\AppData\Local\Temp\nst4AF6.tmp\System.dllFilesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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memory/2348-20-0x0000000003900000-0x000000000458F000-memory.dmpFilesize
12.6MB
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memory/2348-21-0x0000000077660000-0x0000000077809000-memory.dmpFilesize
1.7MB
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memory/2348-22-0x0000000077850000-0x0000000077926000-memory.dmpFilesize
856KB
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memory/2348-23-0x0000000010000000-0x0000000010006000-memory.dmpFilesize
24KB
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memory/2348-25-0x0000000003900000-0x000000000458F000-memory.dmpFilesize
12.6MB
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memory/2548-24-0x00000000017E0000-0x000000000246F000-memory.dmpFilesize
12.6MB
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memory/2548-26-0x0000000077660000-0x0000000077809000-memory.dmpFilesize
1.7MB
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memory/2548-27-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-28-0x0000000077886000-0x0000000077887000-memory.dmpFilesize
4KB
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memory/2548-29-0x0000000077850000-0x0000000077926000-memory.dmpFilesize
856KB
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memory/2548-52-0x00000000017E0000-0x000000000246F000-memory.dmpFilesize
12.6MB
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memory/2548-54-0x0000000077850000-0x0000000077926000-memory.dmpFilesize
856KB
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memory/2548-53-0x00000000017E0000-0x000000000246F000-memory.dmpFilesize
12.6MB
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memory/2548-55-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-56-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-57-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-58-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-59-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-60-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-61-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-62-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-64-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-66-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-65-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-75-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-76-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-74-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-73-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-72-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-71-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-70-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-69-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-68-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-67-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-80-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-81-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-82-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-83-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-84-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-85-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-86-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-87-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-89-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-90-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-91-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-92-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-93-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-94-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-95-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-96-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-97-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-98-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-99-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-101-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-100-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-102-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-103-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-104-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-106-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-107-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-108-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-109-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-110-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-111-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-112-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB
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memory/2548-113-0x0000000000770000-0x00000000017D2000-memory.dmpFilesize
16.4MB