Analysis
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max time kernel
67s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21-05-2022 03:17
Static task
static1
Behavioral task
behavioral1
Sample
0020027409011933_05-13-2020.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
0020027409011933_05-13-2020.exe
Resource
win10v2004-20220414-en
General
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Target
0020027409011933_05-13-2020.exe
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Size
402KB
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MD5
fbc66dd14f31214c68d15659f71219bf
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SHA1
36301d647b8549e60564c34063a4a8a7b7bd1b76
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SHA256
3e2931cb793d52c5e3253abd7efa9c5c5da9fe766cc93a012ff784fe48694c7a
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SHA512
578e2bad1dc7a5775d4b13b34cb75d054d554de7f53aa8cecc2f85bff594abd43a63fc9d1e06ba90745f225b3a17bc7fe40e78c0e2c13de51dee7240aff5c0d3
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.elhelado.com.mx - Port:
587 - Username:
[email protected] - Password:
4042Ad@+
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/2036-56-0x0000000000410000-0x0000000000418000-memory.dmp coreentity -
AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1600-63-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1600-64-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1600-65-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1600-66-0x000000000044A49E-mapping.dmp family_agenttesla behavioral1/memory/1600-68-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla behavioral1/memory/1600-70-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/2036-57-0x0000000000730000-0x0000000000786000-memory.dmp rezer0 -
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
Processes:
0020027409011933_05-13-2020.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0020027409011933_05-13-2020.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0020027409011933_05-13-2020.exe Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0020027409011933_05-13-2020.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
0020027409011933_05-13-2020.exedescription pid process target process PID 2036 set thread context of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe -
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 3 IoCs
Processes:
0020027409011933_05-13-2020.exe0020027409011933_05-13-2020.exepid process 2036 0020027409011933_05-13-2020.exe 1600 0020027409011933_05-13-2020.exe 1600 0020027409011933_05-13-2020.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
0020027409011933_05-13-2020.exe0020027409011933_05-13-2020.exedescription pid process Token: SeDebugPrivilege 2036 0020027409011933_05-13-2020.exe Token: SeDebugPrivilege 1600 0020027409011933_05-13-2020.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
0020027409011933_05-13-2020.exe0020027409011933_05-13-2020.exedescription pid process target process PID 2036 wrote to memory of 2000 2036 0020027409011933_05-13-2020.exe schtasks.exe PID 2036 wrote to memory of 2000 2036 0020027409011933_05-13-2020.exe schtasks.exe PID 2036 wrote to memory of 2000 2036 0020027409011933_05-13-2020.exe schtasks.exe PID 2036 wrote to memory of 2000 2036 0020027409011933_05-13-2020.exe schtasks.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 2036 wrote to memory of 1600 2036 0020027409011933_05-13-2020.exe 0020027409011933_05-13-2020.exe PID 1600 wrote to memory of 1100 1600 0020027409011933_05-13-2020.exe netsh.exe PID 1600 wrote to memory of 1100 1600 0020027409011933_05-13-2020.exe netsh.exe PID 1600 wrote to memory of 1100 1600 0020027409011933_05-13-2020.exe netsh.exe PID 1600 wrote to memory of 1100 1600 0020027409011933_05-13-2020.exe netsh.exe -
outlook_office_path 1 IoCs
Processes:
0020027409011933_05-13-2020.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0020027409011933_05-13-2020.exe -
outlook_win_path 1 IoCs
Processes:
0020027409011933_05-13-2020.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 0020027409011933_05-13-2020.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0020027409011933_05-13-2020.exe"C:\Users\Admin\AppData\Local\Temp\0020027409011933_05-13-2020.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HyjXbggHLexDHw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD84.tmp"2⤵
- Creates scheduled task(s)
PID:2000
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C:\Users\Admin\AppData\Local\Temp\0020027409011933_05-13-2020.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1600 -
C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵PID:1100
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5758c5177ce532d480023a95785aba712
SHA1f16a7885fc2e0b65177ccffc4c32d248f88cd84e
SHA256b47568eabf6206a38761d4be3a79badeae8cd9f63b1e6c1fbf95da6b38a2f8d5
SHA5124b3da1b99bf5f498f9e8c8ad6d77abbacaf0830c95e51095a075df3b2b0db88ec680967ff2914c67274f650d57df61f3627191e5b7f5aad71aae3d32d6b41210