Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
22-12-2024 11:43
Behavioral task
behavioral1
Sample
JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe
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Size
658KB
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MD5
dd2415171ce9efc6649dc685b522911e
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SHA1
705c73ece90ac6546148097704a4c69dbaa49432
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SHA256
51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c
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SHA512
6ba2b38d3c4f00f795f799b90f3891be885a50f635d3c09814759722184d732eda40fb14b8cae453d4b1f296dac9f0be52db6347092d651b9817aefc7f289c01
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SSDEEP
12288:uIQqoPBWMROjD5EG++L2SColQf0VkXRDuGRl9eJm5Qk8iCVwV0DujIDL3/6GaCOG:uIQqoPBVROjD5EG++2gyakBD//9eJ+Cb
Malware Config
Signatures
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Xmrig family
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XMRig Miner payload 1 IoCs
resource yara_rule behavioral1/files/0x0008000000016d0c-1.dat xmrig -
Cryptocurrency Miner
Makes network request to known mining pool URL.
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Deletes itself 1 IoCs
pid Process 2852 mcrservice.exe -
Executes dropped EXE 1 IoCs
pid Process 2852 mcrservice.exe -
Loads dropped DLL 1 IoCs
pid Process 2808 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Task Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Security\\mcrservice.exe" mcrservice.exe -
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 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mcrservice.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe 2852 mcrservice.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeLockMemoryPrivilege 2852 mcrservice.exe Token: SeLockMemoryPrivilege 2852 mcrservice.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2808 wrote to memory of 2852 2808 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe 31 PID 2808 wrote to memory of 2852 2808 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe 31 PID 2808 wrote to memory of 2852 2808 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe 31 PID 2808 wrote to memory of 2852 2808 JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808 -
C:\Users\Admin\AppData\Roaming\Microsoft\Security\mcrservice.exeC:\Users\Admin\AppData\Roaming\Microsoft\Security\mcrservice.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_51e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c.exe2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2852
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
658KB
MD5dd2415171ce9efc6649dc685b522911e
SHA1705c73ece90ac6546148097704a4c69dbaa49432
SHA25651e4856e80cf0690987cb95887169488c1533fb381795a0013e56d89aa91134c
SHA5126ba2b38d3c4f00f795f799b90f3891be885a50f635d3c09814759722184d732eda40fb14b8cae453d4b1f296dac9f0be52db6347092d651b9817aefc7f289c01