Analysis
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max time kernel
91s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
13-10-2022 16:29
Static task
static1
Behavioral task
behavioral1
Sample
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe
Resource
win10v2004-20220901-en
General
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Target
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe
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Size
597KB
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MD5
6a43f35b77a44c42cb33927c4f08797a
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SHA1
0e7d1c52bc14ec2f95c1ef095f565091ace2f1b5
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SHA256
8d9fec419d0893e5b2e6a2f1fbbc70102be16b2aa5fbe3708401d2ee52ab62e9
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SHA512
0d8b3c48c65303ea0bec74a907b85b8bcfdbd8765ef9b3cf33ca0a43d09a17ed0d488d1de3a65b22aede229eead5c84a018a19494434ee7ba1bc4992b0021da8
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SSDEEP
6144:KQA4zfgMigGBfCppM2mxlkxYylRgajBLkjje2zZG9msXoStVb74gW:ecc6TM2mxSjlRb8Hz4Azs6
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Loads dropped DLL 2 IoCs
Processes:
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exepid process 3660 R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe 3660 R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe -
Drops file in System32 directory 1 IoCs
Processes:
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exedescription ioc process File opened for modification C:\Windows\SysWOW64\Fabriksskorstene\Docsmith\Porthors\Sbeoperaen.ini R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe -
Drops file in Windows directory 3 IoCs
Processes:
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exedescription ioc process File opened for modification C:\Windows\resources\0409\Folien\Pipile.ini R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe File created C:\Windows\Fonts\Padishahs\Unanimatedness\knippers\Ankrendes.lnk R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe File opened for modification C:\Windows\Fonts\Miljstyrelser\Forpraktikanternes\Kontrolafdelingernes.Wil R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 3 IoCs
Processes:
R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exedescription pid process target process PID 3660 wrote to memory of 4736 3660 R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe cmd.exe PID 3660 wrote to memory of 4736 3660 R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe cmd.exe PID 3660 wrote to memory of 4736 3660 R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe"C:\Users\Admin\AppData\Local\Temp\R_018996_GRUPO OCLEM_RCL181378_SEPTEMBER_2022.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3660 -
C:\Windows\SysWOW64\cmd.execmd /c echo C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Zootomic\Triangulationen\Femkampene\Nailproof\Levnedsmiddellovenes63\Loomed.pre2⤵PID:4736
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\nsjB973.tmp\System.dllFilesize
12KB
MD58cf2ac271d7679b1d68eefc1ae0c5618
SHA17cc1caaa747ee16dc894a600a4256f64fa65a9b8
SHA2566950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
SHA512ce828fb9ecd7655cc4c974f78f209d3326ba71ced60171a45a437fc3fff3bd0d69a0997adaca29265c7b5419bdea2b17f8cc8ceae1b8ce6b22b7ed9120bb5ad3
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C:\Users\Admin\AppData\Local\Temp\nsjB973.tmp\nsExec.dllFilesize
7KB
MD5f27689c513e7d12c7c974d5f8ef710d6
SHA1e305f2a2898d765a64c82c449dfb528665b4a892
SHA2561f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47
SHA512734e9f3989ee47a86bee16838df7a09353c7fe085a09d77e70d281b21c5477b0b061616e72e8ac8fcb3dda1df0d5152f54dcc4c5a77f90fbf0f857557bf02fbc
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memory/3660-135-0x00000000030C0000-0x00000000031C1000-memory.dmpFilesize
1.0MB
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memory/3660-136-0x00000000030C0000-0x00000000031C1000-memory.dmpFilesize
1.0MB
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memory/4736-133-0x0000000000000000-mapping.dmp