Analysis
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max time kernel
149s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
12-02-2024 16:42
Static task
static1
Behavioral task
behavioral1
Sample
documents 53 ACH 775-53 ABM 912.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
documents 53 ACH 775-53 ABM 912.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20231215-en
General
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Target
documents 53 ACH 775-53 ABM 912.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:
documents 53 ACH 775-53 ABM 912.exepid process 2468 documents 53 ACH 775-53 ABM 912.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
wab.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\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:
documents 53 ACH 775-53 ABM 912.exedescription ioc process File opened for modification C:\Windows\SysWOW64\threshes.uds documents 53 ACH 775-53 ABM 912.exe File opened for modification C:\Windows\SysWOW64\lohoch.gim documents 53 ACH 775-53 ABM 912.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
Processes:
wab.exepid process 452 wab.exe 452 wab.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
documents 53 ACH 775-53 ABM 912.exewab.exepid process 2468 documents 53 ACH 775-53 ABM 912.exe 452 wab.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
documents 53 ACH 775-53 ABM 912.exedescription pid process target process PID 2468 set thread context of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe -
Drops file in Program Files directory 1 IoCs
Processes:
documents 53 ACH 775-53 ABM 912.exedescription ioc process File opened for modification C:\Program Files (x86)\Common Files\forbandelsernes\kln.lio documents 53 ACH 775-53 ABM 912.exe -
Drops file in Windows directory 3 IoCs
Processes:
documents 53 ACH 775-53 ABM 912.exedescription ioc process File opened for modification C:\Windows\resources\0409\enchasing.Pet documents 53 ACH 775-53 ABM 912.exe File opened for modification C:\Windows\Fonts\Forters67\Elektrotekniker.wra documents 53 ACH 775-53 ABM 912.exe File opened for modification C:\Windows\Tnkepauses.tro documents 53 ACH 775-53 ABM 912.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:
documents 53 ACH 775-53 ABM 912.exepid process 2468 documents 53 ACH 775-53 ABM 912.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
wab.exepid process 452 wab.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
documents 53 ACH 775-53 ABM 912.exedescription pid process target process PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe PID 2468 wrote to memory of 452 2468 documents 53 ACH 775-53 ABM 912.exe wab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\documents 53 ACH 775-53 ABM 912.exe"C:\Users\Admin\AppData\Local\Temp\documents 53 ACH 775-53 ABM 912.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\documents 53 ACH 775-53 ABM 912.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\nsy2943.tmp\System.dllFilesize
11KB
MD517ed1c86bd67e78ade4712be48a7d2bd
SHA11cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA256bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
SHA5120cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
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memory/452-76-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-58-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-27-0x00000000775F6000-0x00000000775F7000-memory.dmpFilesize
4KB
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memory/452-28-0x00000000775C0000-0x0000000077696000-memory.dmpFilesize
856KB
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memory/452-30-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-110-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-109-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-52-0x0000000001B60000-0x00000000027EF000-memory.dmpFilesize
12.6MB
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memory/452-53-0x0000000001B60000-0x00000000027EF000-memory.dmpFilesize
12.6MB
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memory/452-54-0x00000000775C0000-0x0000000077696000-memory.dmpFilesize
856KB
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memory/452-55-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-56-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-57-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-78-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-59-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-60-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-61-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-62-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-63-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-64-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-65-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-66-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-67-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-68-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-69-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-70-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-71-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-72-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-73-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-74-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-79-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-24-0x0000000001B60000-0x00000000027EF000-memory.dmpFilesize
12.6MB
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memory/452-82-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-25-0x00000000773D0000-0x0000000077579000-memory.dmpFilesize
1.7MB
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memory/452-75-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-80-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-81-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-77-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-83-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-84-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-85-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-86-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-87-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-88-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-89-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-90-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-91-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-92-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-93-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-94-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-95-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-96-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-98-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-99-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-100-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-101-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-102-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-103-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-106-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-107-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/452-108-0x0000000000AF0000-0x0000000001B52000-memory.dmpFilesize
16.4MB
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memory/2468-21-0x00000000773D0000-0x0000000077579000-memory.dmpFilesize
1.7MB
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memory/2468-20-0x0000000004090000-0x0000000004D1F000-memory.dmpFilesize
12.6MB
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memory/2468-22-0x00000000775C0000-0x0000000077696000-memory.dmpFilesize
856KB
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memory/2468-23-0x0000000010000000-0x0000000010006000-memory.dmpFilesize
24KB
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memory/2468-26-0x0000000004090000-0x0000000004D1F000-memory.dmpFilesize
12.6MB