Analysis
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max time kernel
120s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
03-02-2025 09:00
General
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Target
rRequestforQuotation_0_2025_pdf.exe
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Size
879KB
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MD5
3d4fd2bc7b91d6724a1b46c27a2e35b7
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SHA1
afebefe8ebbe569e7efef14ae1e617418fa5b0ec
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SHA256
37d13708f889db7729c8fd162898aa6667f546de9396aaa604fb97998fbaf02a
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SHA512
af44ff03cc27769c57d1d89e061d3df6121c4c4cf1f7ce53b8fa1804f3d03fa2f2d2104032f6d46ac761ee1faa3c12208753139e26127988aa8d91d6216b9e81
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SSDEEP
24576:QPyqE0GP4TilxAECVQntGvuCvmuReqr/sblNP9ExQ:IE0A2MGwWp/sblNVE2
Malware Config
Signatures
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Guloader family
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
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Disables Task Manager via registry modification
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Loads dropped DLL 2 IoCs
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
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Suspicious behavior: MapViewOfSection 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\rRequestforQuotation_0_2025_pdf.exe"C:\Users\Admin\AppData\Local\Temp\rRequestforQuotation_0_2025_pdf.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\rRequestforQuotation_0_2025_pdf.exe"C:\Users\Admin\AppData\Local\Temp\rRequestforQuotation_0_2025_pdf.exe"2⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
9KB
MD5e83f9982d02f51d90ccb3e999ac89a95
SHA131a80a514244ac340625fe21fba299235f130cfc
SHA25613cbbda804872162ff79fa0681d1dc828f803ca60247e9be06975ea21910af62
SHA5129db2aa9509971a6e5fa9289a7f37db3cf67e4285c768e0d0181687f2f35a5d120afb70e023c2c52752b2eb58dbeadfacdf7eb303164baf77f06add2c9866f743
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Filesize
1KB
MD557c42ed1528880fef07b73ed592e3b45
SHA1393d7832956e90aa1c748ef5d9d29d7da7ee8a03
SHA25683021bb4380679b20ac8e2793d3840b34ab1c750be6a37a87b060c504bc3b3cf
SHA512ca8f30a560aaa59968dd36a39b485d8ff25e159eaf775ea8623fb03608cd46bd6779ad78ee255c0c4bb22176f5a1012f0f98fd91f6668012478acd02941035f8
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Filesize
11KB
MD5a4dd044bcd94e9b3370ccf095b31f896
SHA117c78201323ab2095bc53184aa8267c9187d5173
SHA2562e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
SHA51287335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
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Filesize
61.2MB
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Filesize
1.7MB
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Filesize
16.4MB
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Filesize
16.4MB
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Filesize
120KB
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Filesize
61.2MB
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Filesize
1.0MB
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Filesize
1.7MB
