Analysis
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max time kernel
139s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18/08/2024, 21:53
Behavioral task
behavioral1
Sample
a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe
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Size
243KB
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MD5
a85cb12aeafd113a53f3bd1a4fd8a93e
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SHA1
3619f9424d6dc2f299c6aa56996befce4457b44e
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SHA256
43b914d4f6aef7bb3cb261c7b920a34cfc6fecf8be46fb4039ed2ec94e088ced
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SHA512
70d09113aec4498666789a4117020c26d2018af66e941b501ce93812aa594cad483e25abdba63d847a10aa7510d2af93dbc709e59e38e01a75e8a50944e1473a
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SSDEEP
3072:dMgJYY7ZXODyY5WcTjLjs1tLTXdPKOftqPW+P1W7gHMY5ty8xb4MowbouEjUo:dLaH2cjPsPLTXdPKO1XPEnCuQUo
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2384 Output.exe -
resource yara_rule behavioral2/memory/2028-0-0x0000000001000000-0x0000000001077000-memory.dmp vmprotect behavioral2/memory/2028-2-0x0000000001000000-0x0000000001077000-memory.dmp vmprotect behavioral2/memory/2028-11-0x0000000001000000-0x0000000001077000-memory.dmp vmprotect -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe -
Program crash 2 IoCs
pid pid_target Process procid_target 3684 2384 WerFault.exe 91 2840 2384 WerFault.exe 91 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Output.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2028 wrote to memory of 2384 2028 a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe 91 PID 2028 wrote to memory of 2384 2028 a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe 91 PID 2028 wrote to memory of 2384 2028 a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Output.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Output.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2384 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 4643⤵
- Program crash
PID:3684
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 4683⤵
- Program crash
PID:2840
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2384 -ip 23841⤵PID:4628
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2384 -ip 23841⤵PID:4948
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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 --field-trial-handle=2708,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=4460 /prefetch:81⤵PID:4488
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
101KB
MD5ff09709a309a9e4d8651526ecae2a3c2
SHA1cfebb3ae4f8652d100b35a7415f2c4532b486a04
SHA256e1ffeab77b260cf40b72c5740c8249bc1d238d9a7bd0982daf190387b80f4e79
SHA5120d607d343446c15ad0f0e486d6988d559a41c43d50c6e45266abef20006e78691b1388e45b25de07cd2a343e76413ae562f913fcc7d6253bb60c9d93bc59c822