Analysis
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max time kernel
143s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system -
submitted
03/07/2023, 01:30
Static task
static1
Behavioral task
behavioral1
Sample
RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe
Resource
win10v2004-20230621-en
General
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Target
RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe
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Size
285KB
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MD5
13a12db020fd20632377e76513b3ad46
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SHA1
898e98541966df2ee2cdf79bfc04082c201a3a1f
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SHA256
8ebc8abe7965da06078b418ac65d4b77c0dc069be320025034c583041d971df2
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SHA512
b40a439d639027230130bd880bccb479572ed2cb9ebd99c28e5a4ec1403dee7fec10f8374146e77f170c0154ed61adb544ce63756de933dbe990c9f13128a7a0
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SSDEEP
6144:/Ya6vLFNNU3IskPtsRC1yY5MlposxnHyVNdhQj+E3D7R0:/YFLFNN9T2C1Ra9nX+EXR0
Malware Config
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Loads dropped DLL 1 IoCs
pid Process 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
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-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe Key opened \REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe Key opened \REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4736 set thread context of 1216 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 85 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1216 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 1216 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 1216 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1216 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1216 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 4736 wrote to memory of 1216 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 85 PID 4736 wrote to memory of 1216 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 85 PID 4736 wrote to memory of 1216 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 85 PID 4736 wrote to memory of 1216 4736 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe 85 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-922299981-3641064733-3870770889-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe"C:\Users\Admin\AppData\Local\Temp\RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4736 -
C:\Users\Admin\AppData\Local\Temp\RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe"C:\Users\Admin\AppData\Local\Temp\RFx - NRSB-SPCI_QHK_NRSB_SPCI_115R1_023.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1216
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
22KB
MD5ecc88034e14426f4d69215f31c51e920
SHA10c12ec87a9bf243d577fb590322d4f45ba0cb0dd
SHA25669789ff19f66f3abec4893fae2f3e244a94985f6d4b734e5673b549d07c10a92
SHA512a7d708a657079d863fb4bf1d17f26e419592c64a2d2dd7bbb3fb277005a10778275f0e7e5dcd84233d0c24affb948d37c29fed840d5fc7ae4453159a1580c210