Analysis
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max time kernel
149s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
29-01-2024 17:43
Behavioral task
behavioral1
Sample
8078089e62c9e70865bf9edad8efb851.exe
Resource
win7-20231215-en
General
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Target
8078089e62c9e70865bf9edad8efb851.exe
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Size
1.4MB
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MD5
8078089e62c9e70865bf9edad8efb851
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SHA1
bcfc7afe63f4de2b1e15bacb8ad90b53bf8defc1
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SHA256
f1378f1135c7b053fa14881acdb9e206c032dd8379bc31d9ce05cfa25d49bd9e
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SHA512
1fd2900d72f43523b21447959b48021f295290a78eaeca42f6f2d656b3b8ba077c2020706a50d81f8fabecae5eb208ac688d4ab72f79d03e0aab023d3c35dc96
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SSDEEP
24576:X6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6Eg:qY9UORVOM1jJHzaiape0hsABFRJch6Lk
Malware Config
Extracted
remcos
2.5.0 Pro
GRACED
thankyoulord.ddns.net:5050
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audio_folder
MicRecords
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audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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install_path
%AppData%
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-0S5XD9
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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startup_value
remcos
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take_screenshot_option
false
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take_screenshot_time
5
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take_screenshot_title
wikipedia;solitaire;
Signatures
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ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/2472-9-0x0000000000610000-0x000000000063C000-memory.dmp rezer0 -
Executes dropped EXE 1 IoCs
Processes:
test.exepid process 2472 test.exe -
Loads dropped DLL 1 IoCs
Processes:
cmd.exepid process 2436 cmd.exe -
Processes:
resource yara_rule behavioral1/memory/2128-0-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral1/memory/2128-27-0x0000000000400000-0x00000000006F1000-memory.dmp upx -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
test.exedescription pid process target process PID 2472 set thread context of 2724 2472 test.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of WriteProcessMemory 23 IoCs
Processes:
8078089e62c9e70865bf9edad8efb851.execmd.exetest.exedescription pid process target process PID 2128 wrote to memory of 2436 2128 8078089e62c9e70865bf9edad8efb851.exe cmd.exe PID 2128 wrote to memory of 2436 2128 8078089e62c9e70865bf9edad8efb851.exe cmd.exe PID 2128 wrote to memory of 2436 2128 8078089e62c9e70865bf9edad8efb851.exe cmd.exe PID 2128 wrote to memory of 2436 2128 8078089e62c9e70865bf9edad8efb851.exe cmd.exe PID 2436 wrote to memory of 2472 2436 cmd.exe test.exe PID 2436 wrote to memory of 2472 2436 cmd.exe test.exe PID 2436 wrote to memory of 2472 2436 cmd.exe test.exe PID 2436 wrote to memory of 2472 2436 cmd.exe test.exe PID 2472 wrote to memory of 2840 2472 test.exe schtasks.exe PID 2472 wrote to memory of 2840 2472 test.exe schtasks.exe PID 2472 wrote to memory of 2840 2472 test.exe schtasks.exe PID 2472 wrote to memory of 2840 2472 test.exe schtasks.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe PID 2472 wrote to memory of 2724 2472 test.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8078089e62c9e70865bf9edad8efb851.exe"C:\Users\Admin\AppData\Local\Temp\8078089e62c9e70865bf9edad8efb851.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vXAlJeWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3312.tmp"4⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"4⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\test.exeFilesize
330KB
MD5261aa73f93c90dcec0c36a51cb9b5dee
SHA1b0c41e06cd2ded81706820423db40bf8fea2c957
SHA256ae160b749914bd56aecbcf43d56a59bde2069a145682b2911fe50c6adabe1b54
SHA5127b90335b4a7db7b5056f6d60db642754038dc544bd2c1f82e68b1f8e339bf70227f0c08d157b4ca1004448fab7d109f0239196f242d0edeab978de9025a3c0ed
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C:\Users\Admin\AppData\Local\Temp\tmp3312.tmpFilesize
1KB
MD58b9e71ddbe3795d7562d041f5e0b5862
SHA13921c07fbc6de6681fe2a0045a9991b119dc562a
SHA256e8a72fee8b166ab1e50e542bedf2e9c4961f92b046f4ad6a846848a2e1f82934
SHA5120350de2e0e6a0598aa92e154ffad3be48db21d39364cc3ff9a77fbd5ef7a3919e05b0d0aa5b029ff629d418160aa77d0174e2220865a775fc2e569939eab190f
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memory/2128-27-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2128-0-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2472-5-0x00000000001C0000-0x0000000000218000-memory.dmpFilesize
352KB
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memory/2472-6-0x00000000749B0000-0x000000007509E000-memory.dmpFilesize
6.9MB
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memory/2472-7-0x0000000004970000-0x00000000049B0000-memory.dmpFilesize
256KB
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memory/2472-8-0x0000000000330000-0x0000000000338000-memory.dmpFilesize
32KB
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memory/2472-9-0x0000000000610000-0x000000000063C000-memory.dmpFilesize
176KB
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memory/2472-25-0x00000000749B0000-0x000000007509E000-memory.dmpFilesize
6.9MB
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memory/2724-18-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-32-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-24-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-26-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-29-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-19-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-21-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmpFilesize
4KB
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memory/2724-20-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-15-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-17-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-16-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-30-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-31-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-22-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-34-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-35-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-37-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-39-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-41-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-43-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-45-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-47-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-49-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-51-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-53-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2724-55-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB