Analysis
-
max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16-04-2024 12:02
Behavioral task
behavioral1
Sample
f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe
Resource
win7-20240319-en
General
-
Target
f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe
-
Size
1.4MB
-
MD5
f374a3b56393fd2db15028815ec4acb9
-
SHA1
872b0df83d18fc9f603599651b35b7ca325c63f3
-
SHA256
493ce962377ece4f77635daa8991d3a8fc60f8631a523e60e370084daf4a3779
-
SHA512
af70d70f69033942d9aef3ec3cb725a44e8485c0d2537964fe2ad12f0d148c8ef2715ba1297e381332bac94485f2e997e6c091805fee8e153d9b03e8401ef513
-
SSDEEP
24576:A6yJMY9UFoRDhkeYM1jJR97zUbia9JVe0hs5WfBiERJchVML1bT6Es:fY9UORVOM1jJHzaiape0hsABFRJch6LY
Malware Config
Extracted
remcos
2.5.0 Pro
GRACED
thankyoulord.ddns.net:5050
-
audio_folder
MicRecords
-
audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
install_path
%AppData%
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
Remcos-0S5XD9
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
-
take_screenshot_title
wikipedia;solitaire;
Signatures
-
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral2/memory/884-12-0x0000000005C50000-0x0000000005C7C000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation test.exe -
Executes dropped EXE 1 IoCs
Processes:
test.exepid process 884 test.exe -
Processes:
resource yara_rule behavioral2/memory/3168-0-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/3168-14-0x0000000000400000-0x00000000006F1000-memory.dmp upx behavioral2/memory/3168-28-0x0000000000400000-0x00000000006F1000-memory.dmp upx -
Uses the VBS compiler for execution 1 TTPs
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
test.exedescription pid process target process PID 884 set thread context of 2604 884 test.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
test.exepid process 884 test.exe 884 test.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
test.exedescription pid process Token: SeDebugPrivilege 884 test.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.execmd.exetest.exedescription pid process target process PID 3168 wrote to memory of 4016 3168 f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe cmd.exe PID 3168 wrote to memory of 4016 3168 f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe cmd.exe PID 3168 wrote to memory of 4016 3168 f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe cmd.exe PID 4016 wrote to memory of 884 4016 cmd.exe test.exe PID 4016 wrote to memory of 884 4016 cmd.exe test.exe PID 4016 wrote to memory of 884 4016 cmd.exe test.exe PID 884 wrote to memory of 1628 884 test.exe schtasks.exe PID 884 wrote to memory of 1628 884 test.exe schtasks.exe PID 884 wrote to memory of 1628 884 test.exe schtasks.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe PID 884 wrote to memory of 2604 884 test.exe vbc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f374a3b56393fd2db15028815ec4acb9_JaffaCakes118.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c test.exe2⤵
- Suspicious use of WriteProcessMemory
-
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
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vXAlJeWc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B8D.tmp"4⤵
- Creates scheduled task(s)
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"{path}"4⤵
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\test.exeFilesize
330KB
MD5261aa73f93c90dcec0c36a51cb9b5dee
SHA1b0c41e06cd2ded81706820423db40bf8fea2c957
SHA256ae160b749914bd56aecbcf43d56a59bde2069a145682b2911fe50c6adabe1b54
SHA5127b90335b4a7db7b5056f6d60db642754038dc544bd2c1f82e68b1f8e339bf70227f0c08d157b4ca1004448fab7d109f0239196f242d0edeab978de9025a3c0ed
-
C:\Users\Admin\AppData\Local\Temp\tmp3B8D.tmpFilesize
1KB
MD5078b1e8425c21774a8acd2d4e7b1a361
SHA116d4eb2760a2fb99df662bd477e2cf86b22e7371
SHA256c0e8dca78c46a93b116c0622ab79e9277753976601031aa5622358bc88215fbc
SHA512c3005b549f84e94aeedfcd6c67945bb30033d68fedf0189be2634c488d94a5f268f0739daf310d2cbc053b5eef50320f6424415171e0feac7299b2c5556af662
-
memory/884-5-0x0000000074520000-0x0000000074CD0000-memory.dmpFilesize
7.7MB
-
memory/884-6-0x0000000000CA0000-0x0000000000CF8000-memory.dmpFilesize
352KB
-
memory/884-7-0x0000000005CA0000-0x0000000006244000-memory.dmpFilesize
5.6MB
-
memory/884-8-0x00000000056F0000-0x0000000005782000-memory.dmpFilesize
584KB
-
memory/884-9-0x0000000005980000-0x0000000005990000-memory.dmpFilesize
64KB
-
memory/884-10-0x00000000058A0000-0x00000000058AA000-memory.dmpFilesize
40KB
-
memory/884-11-0x0000000005890000-0x0000000005898000-memory.dmpFilesize
32KB
-
memory/884-12-0x0000000005C50000-0x0000000005C7C000-memory.dmpFilesize
176KB
-
memory/884-13-0x00000000062F0000-0x000000000638C000-memory.dmpFilesize
624KB
-
memory/884-24-0x0000000074520000-0x0000000074CD0000-memory.dmpFilesize
7.7MB
-
memory/2604-23-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-34-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-52-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-25-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-44-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-27-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-42-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-29-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-30-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-31-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-20-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-36-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/2604-38-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
-
memory/3168-28-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
-
memory/3168-14-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB
-
memory/3168-0-0x0000000000400000-0x00000000006F1000-memory.dmpFilesize
2.9MB