Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-03-2024 05:59
Behavioral task
behavioral1
Sample
c0060cafd7f9db928bb0e78ef2480cdf.exe
Resource
win7-20240221-en
General
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Target
c0060cafd7f9db928bb0e78ef2480cdf.exe
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Size
1.4MB
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MD5
c0060cafd7f9db928bb0e78ef2480cdf
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SHA1
6082629f9f6b160ffc3504baa429ee3649bcc036
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SHA256
166532feecaa14575279d728da2c9988049a8a7ea5d479e04c588a554a097809
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SHA512
a17c63d63570228393e0d6960a91857f2acc5633f61ccb0c66a6ab0e5c00a0c30ea841fa906b8954c97504ab54a5f57e4986b312e972a84725a14620b853f869
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SSDEEP
24576:y6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6ES:1Y9UORVOM1jJHzaiape0hsABFRJch6L2
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 behavioral2/memory/3644-12-0x0000000005B20000-0x0000000005B4C000-memory.dmp rezer0 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
test.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation test.exe -
Executes dropped EXE 1 IoCs
Processes:
test.exepid process 3644 test.exe -
Processes:
resource yara_rule behavioral2/memory/2040-0-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/2040-14-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/2040-27-0x0000000000400000-0x00000000006F1000-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 3644 set thread context of 2348 3644 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 behavior: EnumeratesProcesses 2 IoCs
Processes:
test.exepid process 3644 test.exe 3644 test.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
test.exedescription pid process Token: SeDebugPrivilege 3644 test.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
c0060cafd7f9db928bb0e78ef2480cdf.execmd.exetest.exedescription pid process target process PID 2040 wrote to memory of 2944 2040 c0060cafd7f9db928bb0e78ef2480cdf.exe cmd.exe PID 2040 wrote to memory of 2944 2040 c0060cafd7f9db928bb0e78ef2480cdf.exe cmd.exe PID 2040 wrote to memory of 2944 2040 c0060cafd7f9db928bb0e78ef2480cdf.exe cmd.exe PID 2944 wrote to memory of 3644 2944 cmd.exe test.exe PID 2944 wrote to memory of 3644 2944 cmd.exe test.exe PID 2944 wrote to memory of 3644 2944 cmd.exe test.exe PID 3644 wrote to memory of 3640 3644 test.exe schtasks.exe PID 3644 wrote to memory of 3640 3644 test.exe schtasks.exe PID 3644 wrote to memory of 3640 3644 test.exe schtasks.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe PID 3644 wrote to memory of 2348 3644 test.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c0060cafd7f9db928bb0e78ef2480cdf.exe"C:\Users\Admin\AppData\Local\Temp\c0060cafd7f9db928bb0e78ef2480cdf.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\test.exetest.exe3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\tmp8B96.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\tmp8B96.tmpFilesize
1KB
MD523c88c68c088ccfbad0f3e19698125f2
SHA126a7a9bf03694cbe2e945d0b59952d9df3108a66
SHA256672081973cd0feffe42bdfdc8b32d89d8b6d5af108726e21ba08bb7949da2aba
SHA51276009888b6f25ac71d1f95984db5bd308df4dc74a4e7384c14eaee138979f43fd3790f6c375315b6e0142fe3111ed53a9e4c378a021f8f0aca0ffd826c337c74
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memory/2040-27-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2040-14-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2040-0-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2348-33-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-25-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-37-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-20-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-32-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-30-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-29-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-41-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-28-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-26-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2348-23-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/3644-8-0x0000000005880000-0x0000000005912000-memory.dmpFilesize
584KB
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memory/3644-24-0x0000000074450000-0x0000000074C00000-memory.dmpFilesize
7.7MB
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memory/3644-7-0x0000000005D90000-0x0000000006334000-memory.dmpFilesize
5.6MB
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memory/3644-6-0x0000000000EC0000-0x0000000000F18000-memory.dmpFilesize
352KB
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memory/3644-9-0x0000000005AD0000-0x0000000005AE0000-memory.dmpFilesize
64KB
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memory/3644-13-0x00000000063E0000-0x000000000647C000-memory.dmpFilesize
624KB
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memory/3644-12-0x0000000005B20000-0x0000000005B4C000-memory.dmpFilesize
176KB
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memory/3644-11-0x00000000057C0000-0x00000000057C8000-memory.dmpFilesize
32KB
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memory/3644-10-0x00000000057E0000-0x00000000057EA000-memory.dmpFilesize
40KB
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memory/3644-5-0x0000000074450000-0x0000000074C00000-memory.dmpFilesize
7.7MB