Analysis
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max time kernel
142s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
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submitted
12-08-2022 17:01
General
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Target
Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe
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Size
862KB
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MD5
1a6f63574e2e09dae22a49c8f39227f3
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SHA1
70e101fd885b9d041d0fdbe1f19ffd9becc4dd2c
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SHA256
7942a73de4742a8b5e282888492639e7070a36f979b22c1af3a0db0ff942a402
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SHA512
0c17fc82e22477f71b3cb8e7789d6d8b2a7a3bb5e6a5a12a783d2769b56eb885eaf2fc265c72b7da8cf98a0fa7ea76f117bdda3f636ff370ffdf486482ba7229
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
doublegrace50@yandex.com - Password:
chukwuma22
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
doublegrace50@yandex.com - Password:
chukwuma22
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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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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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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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). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 14 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\Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sQbuiQXrRFHqh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp222E.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Proforma Invoice No. 00345 Dtd. 12.11.2022.pdf.exe.logFilesize
1KB
MD55200da2e50f24d5d543c3f10674acdcb
SHA1b574a3336839882d799c0a7f635ea238efb934ee
SHA256d2d81c1c9d35bc66149beaa77029bee68664d8512fc1efe373180bab77d61026
SHA51224722a7de3250a6027a411c8b79d0720554c4efd59553f54b94ab77dc21efbf3191e0912901db475f08a6e9c1855d9e9594504d80d27300097418f4384a9d9cb
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C:\Users\Admin\AppData\Local\Temp\tmp222E.tmpFilesize
1KB
MD5b12168bff56ecc463286360f7a3bda34
SHA1e9cb210fff729ab0f66dd8650044e61494dc7451
SHA2561bffa52cd336fd9927a18a7830c56871a053384b0e3d2093335dd23182e90ee6
SHA512f199f85188fd7e964a744f4767707c41e5952f68a71ef4df33ba733f39bb5dce0be05049e4e64bb074c6b424970671d53fa38cd5c7544b975d503f439c99fb98
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memory/796-137-0x0000000000000000-mapping.dmp
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memory/1952-139-0x0000000000000000-mapping.dmp
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memory/3832-133-0x0000000005860000-0x00000000058F2000-memory.dmpFilesize
584KB
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memory/3832-135-0x0000000005AA0000-0x0000000005AF6000-memory.dmpFilesize
344KB
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memory/3832-136-0x000000000D260000-0x000000000D2C6000-memory.dmpFilesize
408KB
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memory/3832-134-0x0000000005790000-0x000000000579A000-memory.dmpFilesize
40KB
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memory/3832-130-0x0000000000E70000-0x0000000000F4E000-memory.dmpFilesize
888KB
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memory/3832-132-0x0000000005E10000-0x00000000063B4000-memory.dmpFilesize
5.6MB
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memory/3832-131-0x00000000057C0000-0x000000000585C000-memory.dmpFilesize
624KB
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memory/4640-140-0x0000000000000000-mapping.dmp
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memory/4640-141-0x0000000000400000-0x000000000043A000-memory.dmpFilesize
232KB
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memory/4640-143-0x00000000064C0000-0x0000000006510000-memory.dmpFilesize
320KB