Analysis
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max time kernel
137s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
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submitted
01-06-2023 10:40
General
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Target
Remittance pos.invioce.exe
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Size
8KB
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MD5
b400834d73b4a98fc9d7abf83a149a2b
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SHA1
8679b02dd6f9166152d1111374659c0639500043
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SHA256
1f5d7c12cd6c2ea7752258c06c20b68bde32d1a3ef6e647c3cf809e1283452f6
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SHA512
80fc4660b6e512093bb4e3753615b80bc09a092fc2852f932274e181303c756c8e6054c97b3d2139afad7d0128ae566b0772880e56660c83edaac67207e0703e
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SSDEEP
192:NgkfwL2sLMg+JLFr7dYeHkRW4zkXvvF3Hy8qgBG:qkfwLZLbqLFr7dNET+t3S8qA
Malware Config
Extracted
purecrypter
http://85.31.45.42/Dsgnow.dll
Signatures
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 3 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\Remittance pos.invioce.exe"C:\Users\Admin\AppData\Local\Temp\Remittance pos.invioce.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgA0AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
64KB
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Filesize
64KB
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Filesize
6.5MB
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Filesize
104KB
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Filesize
120KB
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Filesize
216KB
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Filesize
6.2MB
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Filesize
408KB
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Filesize
408KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
64KB
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Filesize
5.6MB
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Filesize
40KB
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Filesize
64KB
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Filesize
64KB
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Filesize
32KB
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Filesize
64KB
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Filesize
584KB
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Filesize
64KB
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Filesize
64KB
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Filesize
320KB
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Filesize
1.8MB
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Filesize
64KB
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Filesize
136KB