Analysis
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max time kernel
144s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
19-12-2024 14:28
General
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Target
PURCHASE ORDER TRC-090971819130-24_pdf.exe
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Size
466KB
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MD5
745504717878bb22b600df7e2c2dd9f4
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SHA1
9515d0277803511a4f401674f40f022ed69c85d7
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SHA256
8a4d38092e7f0245aa376d724cf3dbe08d4b563a86db3c99e70defaa38beb969
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SHA512
8035ff6f18deaaec620acd824bbcecf07d38f2e2f77e322942f635320af75bbc4bd60250f0e61094eed22cfeef652791d61476bd7b4c613ebb6fb7952ae48e4d
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SSDEEP
12288:I5AlMIL/obq71R7Oj6rgcPIcXuQd7lxu7Jj1JK8s5FEeKN:ZtL/o2BR7Zrgcwgpxu7Jj1Jiceg
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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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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops file in System32 directory 1 IoCs
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Suspicious use of SetThreadContext 1 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 5 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\PURCHASE ORDER TRC-090971819130-24_pdf.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER TRC-090971819130-24_pdf.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER TRC-090971819130-24_pdf.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER TRC-090971819130-24_pdf.exe"2⤵
- 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
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Downloads
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Filesize
11KB
MD5ee260c45e97b62a5e42f17460d406068
SHA1df35f6300a03c4d3d3bd69752574426296b78695
SHA256e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
SHA512a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3
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Filesize
5.6MB
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Filesize
13.2MB
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Filesize
1.1MB
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Filesize
40KB
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Filesize
18.3MB
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Filesize
4KB
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Filesize
4KB
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Filesize
120KB
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Filesize
1.8MB
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Filesize
320KB
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Filesize
13.2MB
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Filesize
584KB
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Filesize
624KB
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Filesize
13.2MB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
13.2MB