Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 01:46
Behavioral task
behavioral1
Sample
f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe
Resource
win7-20240221-en
General
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Target
f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe
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Size
1.4MB
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MD5
f93cf765afdc83db66c7fa6e65a4c635
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SHA1
5d30c58a230681dee3951db123d153002e8465dc
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SHA256
11fa1333306fce3fa0d07f67f7889a07c9ff46c2bea22d5fe6ccfb1a1e09fad7
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SHA512
4950c42ec633d042e7af0fd1f918743eb80d35cc2832d7e098ad6606dfc951267880a484e5edfa75e59f7c8a4115e5b034c9fbac4fc1675ce82df500f7bc22a7
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SSDEEP
24576:z6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6Ep:+Y9UORVOM1jJHzaiape0hsABFRJch6Ld
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/3024-13-0x0000000005F90000-0x0000000005FBC000-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-1-5-21-1826666146-2574340311-1877551059-1000\Control Panel\International\Geo\Nation test.exe -
Executes dropped EXE 1 IoCs
Processes:
test.exepid process 3024 test.exe -
Processes:
resource yara_rule behavioral2/memory/2748-0-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/2748-4-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/2748-27-0x0000000000400000-0x00000000006F1000-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 3024 set thread context of 4052 3024 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 1 IoCs
Processes:
test.exepid process 3024 test.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
test.exedescription pid process Token: SeDebugPrivilege 3024 test.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.execmd.exetest.exedescription pid process target process PID 2748 wrote to memory of 4508 2748 f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe cmd.exe PID 2748 wrote to memory of 4508 2748 f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe cmd.exe PID 2748 wrote to memory of 4508 2748 f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe cmd.exe PID 4508 wrote to memory of 3024 4508 cmd.exe test.exe PID 4508 wrote to memory of 3024 4508 cmd.exe test.exe PID 4508 wrote to memory of 3024 4508 cmd.exe test.exe PID 3024 wrote to memory of 1944 3024 test.exe schtasks.exe PID 3024 wrote to memory of 1944 3024 test.exe schtasks.exe PID 3024 wrote to memory of 1944 3024 test.exe schtasks.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe PID 3024 wrote to memory of 4052 3024 test.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f93cf765afdc83db66c7fa6e65a4c635_JaffaCakes118.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\tmpC3FC.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\tmpC3FC.tmpFilesize
1KB
MD5cbc68ed6b9bd2b92d523145b32b502c2
SHA154f36196a6abc83e677a1b6b16fc76bb724a1894
SHA256f7a8a02565eb8a0dbde20a506e6f0ccf786f6c1dc9f589f034e4cf72a7976946
SHA51280de548dea27e9f2c115028329f00e5afff0e5082f5cee06c3eebd29397cfd57f7714858a6deab294ddb55460c37012179e6b8e3831b84113abbf9022db63257
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memory/2748-4-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2748-0-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/2748-27-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
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memory/3024-9-0x0000000005A70000-0x0000000005B02000-memory.dmpFilesize
584KB
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memory/3024-26-0x0000000074BB0000-0x0000000075360000-memory.dmpFilesize
7.7MB
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memory/3024-10-0x0000000005CE0000-0x0000000005CF0000-memory.dmpFilesize
64KB
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memory/3024-11-0x0000000005A00000-0x0000000005A0A000-memory.dmpFilesize
40KB
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memory/3024-12-0x00000000059F0000-0x00000000059F8000-memory.dmpFilesize
32KB
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memory/3024-13-0x0000000005F90000-0x0000000005FBC000-memory.dmpFilesize
176KB
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memory/3024-14-0x0000000006670000-0x000000000670C000-memory.dmpFilesize
624KB
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memory/3024-8-0x0000000006020000-0x00000000065C4000-memory.dmpFilesize
5.6MB
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memory/3024-7-0x0000000074BB0000-0x0000000075360000-memory.dmpFilesize
7.7MB
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memory/3024-6-0x0000000000FB0000-0x0000000001008000-memory.dmpFilesize
352KB
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memory/4052-24-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-25-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-21-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-28-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-29-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-30-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-32-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-33-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-37-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-39-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-41-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-45-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4052-47-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB