Analysis
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max time kernel
149s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16-06-2024 18:00
Behavioral task
behavioral1
Sample
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe
Resource
win7-20240508-en
General
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Target
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe
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Size
203KB
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MD5
b474720cf33c6f7b5b52309a5b093217
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SHA1
ef6425cf2f9207a9d55f7a758bbbda91e74e85a9
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SHA256
2328c5fb5d91fc3e957d9e5b9ba7c160afe4b3d6fadf184e426e98361c680426
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SHA512
86ebea23c927bb03ab127e458ebd1806efa526c3eca336990176c827cb8197b0e1dc7346fdd51e9431ae27a0bccba76c36a811883d729286fc7f4ea2b05f69f3
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SSDEEP
6144:sLV6Bta6dtJmakIM5in/kAflqT1une7R0s1ef:sLV6Btpmkl/FU5ef
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe" b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Drops file in Program Files directory 2 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exedescription ioc process File created C:\Program Files (x86)\SMTP Subsystem\smtpss.exe b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe File opened for modification C:\Program Files (x86)\SMTP Subsystem\smtpss.exe b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 2140 schtasks.exe 2112 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exepid process 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exepid process 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exedescription pid process Token: SeDebugPrivilege 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exedescription pid process target process PID 4964 wrote to memory of 2140 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe PID 4964 wrote to memory of 2140 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe PID 4964 wrote to memory of 2140 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe PID 4964 wrote to memory of 2112 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe PID 4964 wrote to memory of 2112 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe PID 4964 wrote to memory of 2112 4964 b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b474720cf33c6f7b5b52309a5b093217_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2BA.tmp"2⤵
- Creates scheduled task(s)
PID:2140 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp471.tmp"2⤵
- Creates scheduled task(s)
PID:2112
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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=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:81⤵PID:4636
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp2BA.tmpFilesize
1KB
MD525377a9aef8308a379eac2077315d49e
SHA10801d0772bcf0f615ff151a1b68fbfca616e141a
SHA256ec46db9b6838b5f1a61ee7747be241ddd79730089ada6c16899636d2fa8789bb
SHA51295ce8a9a3543f63b61636de54ff7651640d7079a9c6e3c5d9234d3e5f85fa8100c9268e21e51f7105dfa49a75deaf203f02322dcdc20a2468f0174b388e339ca
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C:\Users\Admin\AppData\Local\Temp\tmp471.tmpFilesize
1KB
MD50339b45ef206f4becc88be0d65e24b9e
SHA16503a1851f4ccd8c80a31f96bd7ae40d962c9fad
SHA2563d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83
SHA512c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551
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memory/4964-0-0x00000000750C2000-0x00000000750C3000-memory.dmpFilesize
4KB
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memory/4964-1-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB
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memory/4964-2-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB
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memory/4964-10-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB
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memory/4964-11-0x00000000750C2000-0x00000000750C3000-memory.dmpFilesize
4KB
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memory/4964-12-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB
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memory/4964-13-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB
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memory/4964-14-0x00000000750C0000-0x0000000075671000-memory.dmpFilesize
5.7MB