Analysis
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max time kernel
119s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220310-en -
submitted
14-04-2022 06:53
Static task
static1
Behavioral task
behavioral1
Sample
679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe
Resource
win7-20220331-en
Behavioral task
behavioral2
Sample
679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe
Resource
win10v2004-20220310-en
General
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Target
679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe
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Size
645KB
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MD5
6b66ea11a8f7baec2dd0c25201f5e421
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SHA1
cafc5bfa2c455f6a2faa031cb2d6a3b46e95e9fe
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SHA256
679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942
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SHA512
d8400b15a93223a290e070c28c75fcc308ea6dc856ce2d2a64fe958eeacef2eaa27fad92efde1da97ae2184d1d2d7297e177ce928a72e27b0d030f9f44702233
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
lochmann2
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
lochmann2
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
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AgentTesla Payload 1 IoCs
resource yara_rule behavioral2/memory/3116-143-0x0000000000400000-0x0000000000450000-memory.dmp family_agenttesla -
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-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe -
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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2748 set thread context of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 -
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.
pid Process 1320 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 3116 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 3116 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe Token: SeDebugPrivilege 3116 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2748 wrote to memory of 1320 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 94 PID 2748 wrote to memory of 1320 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 94 PID 2748 wrote to memory of 1320 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 94 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 PID 2748 wrote to memory of 3116 2748 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe"C:\Users\Admin\AppData\Local\Temp\679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2748 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xsGSWqW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE67.tmp"2⤵
- Creates scheduled task(s)
PID:1320
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C:\Users\Admin\AppData\Local\Temp\679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3116
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\679095b25876f6f91bb1cf9d2ffe2b8133943aced1255d0f0212540fb4d58942.exe.log
Filesize1KB
MD56f8f3a9a57cb30e686d3355e656031e0
SHA1acccd6befb1a2f40e662280bc5182e086a0d079b
SHA256283586e83b25099a5698cb9caf9c594a37060d11e0f55c81bb9c6d4f728448ea
SHA5128f11d645ff4f8d5b1c45b06eb52cd45319659255306d60e80e33abfd04b9e3b1164679f11a8a23bd493e4b3f6b9841d70e553a01835eeaf6035b4d05e4fd7b54
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Filesize
1KB
MD56228ef2d8da705c321621ef88cb79d9e
SHA1b661b391294c52e069b03dfdf0572301dbcac02c
SHA256690c6c554480e0eebc2c49461ae79252e0663f6bcf951f808ff2ab968b5b0754
SHA512e6d067bd4ef1fc5bef07a274e83abac7705e9b9c232ae34eedf53699139c6ec5944f43337f7a913597ceb0f7cf3ac010094ac8b792f1e3324ad3c28aa9b63cfd