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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
16/08/2024, 21:37
Static task
static1
Behavioral task
behavioral1
Sample
a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe
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Size
196KB
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MD5
a007bacd2a91137b63174740380b6c2b
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SHA1
e4e1c64e569419aff84a6496bfaf0b903e230352
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SHA256
e2381e011d8dfc1051d99e65d6d65e7f045a0fcfec4d4e7108b7a60a1d64ae2b
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SHA512
8c8d7eb60f75e00f31c4ae9306da46afecf9ce4269976f042faa7d8bc6398f242d5c53d01550fc8d12043f041ede23bcd00c55a100b7f5581f4509cb6e817af6
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SSDEEP
6144:Wg5E2VmxrCDR8lcv9R++HYdTOzbl/p3RLUbSL32:W8u1CKlWxETGxBLUbg2
Malware Config
Signatures
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Modifies firewall policy service 3 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe = "C:\\Users\\Admin\\M-1-52-5782-8754-5245\\winsam.exe:*:Enabled:Microsoft® Windows System" a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 4548 winsam.exe -
resource yara_rule behavioral2/memory/2644-1-0x0000000000400000-0x0000000000438000-memory.dmp upx behavioral2/memory/2644-2-0x0000000000400000-0x0000000000438000-memory.dmp upx behavioral2/memory/4548-38-0x0000000000400000-0x0000000000438000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft® Windows System = "C:\\Users\\Admin\\M-1-52-5782-8754-5245\\winsam.exe" a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winsam.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2644 wrote to memory of 4548 2644 a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe 94 PID 2644 wrote to memory of 4548 2644 a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe 94 PID 2644 wrote to memory of 4548 2644 a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe"1⤵
- Modifies firewall policy service
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2644 -
C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe"C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4548
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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=4020,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4108 /prefetch:81⤵PID:4976
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
2Replay Monitor
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Downloads
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Filesize
196KB
MD5a007bacd2a91137b63174740380b6c2b
SHA1e4e1c64e569419aff84a6496bfaf0b903e230352
SHA256e2381e011d8dfc1051d99e65d6d65e7f045a0fcfec4d4e7108b7a60a1d64ae2b
SHA5128c8d7eb60f75e00f31c4ae9306da46afecf9ce4269976f042faa7d8bc6398f242d5c53d01550fc8d12043f041ede23bcd00c55a100b7f5581f4509cb6e817af6