Analysis
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max time kernel
75s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
31-03-2023 11:20
Behavioral task
behavioral1
Sample
5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe
Resource
win10v2004-20230221-en
General
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Target
5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe
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Size
88KB
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MD5
7f9a558c286182185482a0406820c176
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SHA1
cf775bb563c0329d9eb9cdbb0ac7768a107ae3bd
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SHA256
5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc
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SHA512
8a81d9a5d461e065be9c079ff0df63c87bd2d8d4c2d9d38c14de2968ec9fbe6187697601ee7fed55669e2c2d840a7656fcd68fd1bfcbc1eb33a3581597ac014e
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SSDEEP
1536:nM7ZZ5X8Aq/pXM+C+tapLO4il11LRt9N7A:Mt/X8Aq/pXM+C+twLOjft9N7A
Malware Config
Extracted
purecrypter
http://192.3.215.60/uo7/Zkbscbhcbcv.png
Extracted
agenttesla
Protocol: smtp- Host:
smtp.tecnowares.com - Port:
587 - Username:
[email protected] - Password:
pY$WNuY3@@wed - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4968 set thread context of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 220 powershell.exe 220 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe Token: SeDebugPrivilege 220 powershell.exe Token: SeDebugPrivilege 3552 MSBuild.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4968 wrote to memory of 220 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 83 PID 4968 wrote to memory of 220 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 83 PID 4968 wrote to memory of 220 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 83 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 PID 4968 wrote to memory of 3552 4968 5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe 89 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe"C:\Users\Admin\AppData\Local\Temp\5df3a5073fc1a14936a0227e2674ecdc580c804e117463a40b417a54334e04cc.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:220
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3552
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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