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Analysis
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max time kernel
133s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28/05/2024, 01:26
Static task
static1
Behavioral task
behavioral1
Sample
7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe
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Size
595KB
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MD5
7b3b71e4e4b95a12b3037ddb0b83e0d2
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SHA1
a9117b3384ffec76eececa0fb42960bcfe2c486a
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SHA256
6aff16913982445a392df4715e180c3d210ba2b4574c2bfffeb68c4f96a252e4
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SHA512
522987d151e6a524b1c6dd956d3012fca89e3969155b8683138c323c4e52c73721755ad1cc5f63bfff94fcb79cf16c99049749ca7e4f574b9fb86a9762eee432
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SSDEEP
12288:6Mvkq4KPNYB7lAY0jU8CJ/ysWQhSrhQFn8QPXx2El:6MvkUlYydK0s0rhQFnHPXA
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla payload 15 IoCs
resource yara_rule behavioral2/memory/1704-6-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-14-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-28-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-26-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-25-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-23-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-19-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-17-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-16-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-13-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-12-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-11-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-10-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-9-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla behavioral2/memory/1704-20-0x0000000000400000-0x0000000000460000-memory.dmp family_agenttesla -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe" RegAsm.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 68 checkip.amazonaws.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1460 set thread context of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 1704 RegAsm.exe 1704 RegAsm.exe 1704 RegAsm.exe 1704 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe Token: SeDebugPrivilege 1704 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1704 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 PID 1460 wrote to memory of 1704 1460 7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe 107 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\7b3b71e4e4b95a12b3037ddb0b83e0d2_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1704
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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 --no-appcompat-clear --field-trial-handle=3812,i,13640054265074968359,8146127767143474550,262144 --variations-seed-version --mojo-platform-channel-handle=1032 /prefetch:81⤵PID:4068