Analysis
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max time kernel
142s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
04-02-2025 13:08
General
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Target
Request for Quotation_0202025_pdf.exe
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Size
859KB
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MD5
e8d824d5dc4a54bab80b87ffc437f736
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SHA1
41cfb942e1e7e344d721924526ccf066a9372153
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SHA256
03fcc5d97d3ff4e8fb734aed8c29e0e4680f3f27ddbd67acf90d2c5bac259960
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SHA512
7492ec3ccad3cf663680cf9b4979e0e7186c345e7150cb74af5cff942c4dea3cd7a0e23c21a57713e69a41cc87c0c523064dc6e6b5d01fc7e06773b6127e8ed8
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SSDEEP
24576:QPyqE0GP4TqyTbZtOgbsf/iuReqr/sblNP9ExO:IE0YybZ4KWp/sblNVE8
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 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 3 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
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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: EnumeratesProcesses 1 IoCs
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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 4 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Request for Quotation_0202025_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Request for Quotation_0202025_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\Request for Quotation_0202025_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Request for Quotation_0202025_pdf.exe"2⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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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
11KB
MD5a4dd044bcd94e9b3370ccf095b31f896
SHA117c78201323ab2095bc53184aa8267c9187d5173
SHA2562e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc
SHA51287335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a
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Filesize
1KB
MD539a73760a1f069db36a75b6b985684d4
SHA135eadcc9d2201964ddc5c941cc9c5a4f33852d0e
SHA2565b323820898d35194a03f3905f58cbaf01796e05b2347f8a8b1c047bbd0934cd
SHA512b7c3c88aa7705449eb4cfe016c9fcf3914dfd28484ea08f37ea3e36df70f59f79a3297975b3ec83e632c120943bde3583af57787efeaa4199ae61101488e6952
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Filesize
120KB
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Filesize
624KB
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Filesize
7.7MB
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Filesize
77.4MB
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Filesize
4KB
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Filesize
4KB
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Filesize
1.1MB
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Filesize
18.3MB
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Filesize
4KB
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Filesize
4KB
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Filesize
5.6MB
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Filesize
40KB
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Filesize
77.4MB
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Filesize
7.7MB
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Filesize
1.1MB
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Filesize
584KB
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Filesize
320KB
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Filesize
1.8MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
4KB
