Analysis
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max time kernel
143s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
21-05-2024 14:30
Static task
static1
Behavioral task
behavioral1
Sample
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240226-en
General
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Target
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe
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Size
1.3MB
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MD5
b6fed6afcf62aeefa78ac29a132b73ea
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SHA1
c596ab383a296dee20fb5d03af998d5c8ef6e61c
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SHA256
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b
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SHA512
07a7072a1e3bc7cb55d3103e5c7d0e77bc1e3d78ac33d964be7356d9b0eaa165d8cf9d38140e9e74dba7bb77b5f2fb3fd2ed8ec12a3a69813a868b0a326ca2e4
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SSDEEP
24576:r9Q0lIVTRJlXeXeWAFlw3x1CQgy/U77VaaG8uosbrDqa1VHWTcSdmWDxbLn/ohm:5Q0lsRLXTCx1JM77YoOrDX1l2xbLn/wm
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:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exepid process 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exepid process 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.execd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exepid process 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exedescription pid process target process PID 2388 set thread context of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Drops file in Program Files directory 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exedescription ioc process File opened for modification C:\Program Files (x86)\konvoluterer\Forsikringsinspektrer.ini cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Drops file in Windows directory 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exedescription ioc process File opened for modification C:\Windows\mycelian\sempitern.ini cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2164 2068 WerFault.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exepid process 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exepid process 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.execd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exedescription pid process target process PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2388 wrote to memory of 2068 2388 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe PID 2068 wrote to memory of 2164 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe WerFault.exe PID 2068 wrote to memory of 2164 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe WerFault.exe PID 2068 wrote to memory of 2164 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe WerFault.exe PID 2068 wrote to memory of 2164 2068 cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"1⤵
- Loads dropped DLL
- 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
PID:2388 -
C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"C:\Users\Admin\AppData\Local\Temp\cd28e2cfe01499fecd66cdc8ff88502194f77e826d6191c3f838c5f760402a8b.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 683⤵
- Program crash
PID:2164
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5b8992e497d57001ddf100f9c397fcef5
SHA1e26ddf101a2ec5027975d2909306457c6f61cfbd
SHA25698bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b
SHA5128823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c