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Analysis
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max time kernel
146s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
06/07/2024, 03:57
Behavioral task
behavioral1
Sample
27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe
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Size
830KB
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MD5
27553ffd7483441113a8846c1d412cfb
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SHA1
80217e6c2519e79f159815afca3abc45157de162
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SHA256
7845baea0ad22217e025fbe279cfba5ec9457407167b5106aaf6c46cab8dd5b1
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SHA512
595987f3ea505eab071f0ab5515a3fe7d728efaa58b1992b8fc60c46de3d90327702bc52cf7329219efea2492d60b896d17c7e2a331684393d5bf1f5bba52528
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SSDEEP
24576:ZxgrMRWjiOPEJYLUfZe/6z1QvbxNCjdmL3ctj:ZxqUAiULUf8/6z1EYjdmIt
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" WerFaultSec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" WerFaultSec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe -
Deletes itself 1 IoCs
pid Process 2500 cmd.exe -
Executes dropped EXE 2 IoCs
pid Process 1880 WerFaultSec.exe 2476 WerFaultSec.exe -
Loads dropped DLL 1 IoCs
pid Process 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe -
resource yara_rule behavioral1/memory/2000-0-0x0000000000810000-0x0000000000999000-memory.dmp vmprotect behavioral1/memory/2000-34-0x0000000000810000-0x0000000000999000-memory.dmp vmprotect -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "-" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "-" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "-" WerFaultSec.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" WerFaultSec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\WerFaultSec.exe 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat WerFaultSec.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 1880 WerFaultSec.exe 2476 WerFaultSec.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies data under HKEY_USERS 24 IoCs
description ioc Process Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" WerFaultSec.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F}\WpadNetworkName = "Network 3" WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-84-12-8a-13-61 WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F}\42-84-12-8a-13-61 WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-84-12-8a-13-61\WpadDecision = "0" WerFaultSec.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ec000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WerFaultSec.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F}\WpadDecisionTime = 3034a7205acfda01 WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings WerFaultSec.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad WerFaultSec.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-84-12-8a-13-61\WpadDecisionTime = 3034a7205acfda01 WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F} WerFaultSec.exe Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections WerFaultSec.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0" WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1" WerFaultSec.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings WerFaultSec.exe Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F}\WpadDecisionReason = "1" WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9D3BAE1-C1C5-4740-92E6-2AB005C20F0F}\WpadDecision = "0" WerFaultSec.exe Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-84-12-8a-13-61\WpadDecisionReason = "1" WerFaultSec.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 1880 WerFaultSec.exe 2476 WerFaultSec.exe 2476 WerFaultSec.exe 2476 WerFaultSec.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2000 wrote to memory of 1880 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 28 PID 2000 wrote to memory of 1880 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 28 PID 2000 wrote to memory of 1880 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 28 PID 2000 wrote to memory of 1880 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 28 PID 2000 wrote to memory of 2500 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 30 PID 2000 wrote to memory of 2500 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 30 PID 2000 wrote to memory of 2500 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 30 PID 2000 wrote to memory of 2500 2000 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe 30 -
System policy modification 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" WerFaultSec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" WerFaultSec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\27553ffd7483441113a8846c1d412cfb_JaffaCakes118.exe"1⤵
- UAC bypass
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2000 -
C:\Windows\SysWOW64\WerFaultSec.exeC:\Windows\System32\WerFaultSec.exe -i2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1880
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\_uninsep.bat" "2⤵
- Deletes itself
PID:2500
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C:\Windows\SysWOW64\WerFaultSec.exeC:\Windows\SysWOW64\WerFaultSec.exe1⤵
- UAC bypass
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- System policy modification
PID:2476
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
305B
MD5add878125bb72c55c7dbb357394789fc
SHA1eb23082a2b3dad2a68e670e8a41a3aae71de2847
SHA256de77adeac71f6efbf52cbca4f83bda1fef0e9b5dc650d6bc32f5214030149538
SHA512bef479d19784103a21352b4077c2f006acc926ae66b86959331a3d250dc7dbc4e6f48802518004c3e75d19c4bbf45299c3eec19ec066fc5cea09a4643de4da15
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Filesize
689KB
MD5a90a0d930d55b075559ee03cd90e0ddf
SHA1e394d77239fbc7aa54f365348968770609c2c1bf
SHA2562e6d10dffcc5ab3019eab3a30dde526bb2b72dee5e9463d7f592d696b93e41b8
SHA5125dab61992d9fb677a6ef76b1c5ce7d8f855a0490919305fe25d99bc3f1d56bb177893dd94dadee1a2ee1a2c456de08fdcab0827f20d76c0dfc30ecc2d29887d2