Analysis
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max time kernel
138s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21-08-2024 19:57
Static task
static1
Behavioral task
behavioral1
Sample
b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe
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Size
671KB
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MD5
b4d239fc1983373f8a3be2f89588a95f
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SHA1
24ee6dcc9297ad47caa8af2e7fe2320b6287d8cf
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SHA256
6346131bfc30df0c52d365224a740cdca6c108c225709ad70ce7ad4a08a9a906
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SHA512
f64e83dc769cd10b97cbb1d7bc4808b03c30c52074462c7a75f56561eca34d27352368375129ab952620d22f50181718ea848cc68b68f66497ee3584d531a1bc
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SSDEEP
12288:5pAbuWEU8M4UM3ESNsb3lWADTi5mxWA5Y6Z8MS3DUtpWWlEGedjqgqF:bYuWEUCUM3vsTlWAnikxrS6iMS3o7Wsn
Malware Config
Signatures
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Ardamax main executable 1 IoCs
resource yara_rule behavioral2/files/0x0007000000023473-12.dat family_ardamax -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation FCVL.exe -
Executes dropped EXE 1 IoCs
pid Process 1472 FCVL.exe -
Loads dropped DLL 5 IoCs
pid Process 1772 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe 1472 FCVL.exe 1472 FCVL.exe 1472 FCVL.exe 1332 WerFault.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FCVL Agent = "C:\\Windows\\SysWOW64\\28463\\FCVL.exe" FCVL.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\28463\FCVL.001 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe File created C:\Windows\SysWOW64\28463\FCVL.006 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe File created C:\Windows\SysWOW64\28463\FCVL.007 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe File created C:\Windows\SysWOW64\28463\FCVL.exe b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe File created C:\Windows\SysWOW64\28463\AKV.exe b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\28463 FCVL.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 1332 1472 WerFault.exe 85 -
System Location Discovery: System Language Discovery 1 TTPs 3 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 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language FCVL.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: 33 1472 FCVL.exe Token: SeIncBasePriorityPrivilege 1472 FCVL.exe Token: SeIncBasePriorityPrivilege 1472 FCVL.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1472 FCVL.exe 1472 FCVL.exe 1472 FCVL.exe 1472 FCVL.exe 1472 FCVL.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1772 wrote to memory of 1472 1772 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe 85 PID 1772 wrote to memory of 1472 1772 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe 85 PID 1772 wrote to memory of 1472 1772 b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe 85 PID 1472 wrote to memory of 4212 1472 FCVL.exe 102 PID 1472 wrote to memory of 4212 1472 FCVL.exe 102 PID 1472 wrote to memory of 4212 1472 FCVL.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\b4d239fc1983373f8a3be2f89588a95f_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772 -
C:\Windows\SysWOW64\28463\FCVL.exe"C:\Windows\system32\28463\FCVL.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1472 -s 11203⤵
- Loads dropped DLL
- Program crash
PID:1332
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Windows\SysWOW64\28463\FCVL.exe > nul3⤵
- System Location Discovery: System Language Discovery
PID:4212
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1472 -ip 14721⤵PID:1428
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
MD525530555085337eb644b061f239aa9d4
SHA18d91e099aba5439d4bfa8bce464c94e3e1acf620
SHA2563fb6b438ad1530abdd068bffb303fb8a4de51430e0e18ddb6b1a0469ffab8325
SHA512b1f9de0c276533a5a7070aeb2b6415cc1c0bdd2baf5e0645c6ac5ba767cab0d76e5b4461800d89724992af2c863294ada3c1eb2e4516183fe2010c33d47d6a2a
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Filesize
395KB
MD5d63cc8679a63448db1c64252e14e4ab5
SHA110b3a9ac4bc16e8ac1cd05e50b4d540fa3ef223e
SHA25629b3646a556879a4a48e4f2f81e09179c34ac2051ed3e4f4c28e293092470d3d
SHA512cb1911e1a77fb9be560aa4fd8bbef65e181b6d4438d65657501dbcd8dbf488ba01738a7222f35f8d4317e8df8c6f307d9e3623d6e3e45753e138b80fb68ff768
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Filesize
410B
MD5ee9a2116a6a8b50387ba61cf38043051
SHA1b13006e2bf99e326a04b1c856cfaeac7af0534cd
SHA256c6e37543836cee0432f0c23a17a00bcdba14d76d8abea4f4e928861b6334b5ae
SHA5123e5746b762f4bcef0eabf05496e398a46ec5e952f59e61a7cc1564dc1da6c4415682e1aaea1aa21b3002b19c8e45526ea116fbde851ea92a2196af9e30002f3f
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Filesize
8KB
MD581e20f4361cf8f5a57812871c24d945e
SHA15d7877d6959ab26599b05795a71633f00c37a3da
SHA256e6e8b4a29dccb3531f58c75b754caf7f26afe3e7043239305fd0ae7ab2f7571d
SHA51269b1d75ab7123054bf98cf3a0f2cc7a0749cda8d85ebdef85be7d89f1454154ce29070907b934727a6c5276ff430e94810b87a5634d25d8529df9ee36fd20818
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Filesize
5KB
MD5e9fbdcc2f5fb657fa519b3f5c69fc52d
SHA1c49cca77b46a59d620711de7564d43e5dafcd2b5
SHA256cc440cfc4ce1a1ff503cc9e8937c59aae64bfce4daa3e7dc757220a25cadc2e4
SHA512913759967e16b99d8ea66433e5dc99d5ddbf737be6784306e67c2b23a525b7a578fcae1028221d3209abc452ff30508eb750c62113c3868a7af36b544e525fb1
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Filesize
473KB
MD597d8ad45f48b4b28a93aab94699b7168
SHA18b69b7fd7c008b95d12386f6da415097e72151de
SHA256661df22a66b2062b233eb0bd9665de924cfe0ac9c6ba29e20ffef24f817f9331
SHA5123351eac970bab391de410fcf1937da75d2e4722b808f10332f487ddfe469544e32e7d4ed0e5bdc19bd5f472cffcc55ca1498c95945b4e9c4ceff6ff5cc521c8a