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Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
15/03/2023, 16:57
Static task
static1
Behavioral task
behavioral1
Sample
100 gab.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
100 gab.exe
Resource
win10v2004-20230220-en
General
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Target
100 gab.exe
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Size
1.2MB
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MD5
38462e84ce0cb6d961452e6b0e20c83c
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SHA1
86bf94777e67a820191cec9857182ff6d404539d
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SHA256
8cc7a30b218d8c4e4dbeef936290a726ebfdb9ea1b9af35dab970ce4bb5352bc
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SHA512
ce0c3020cdc5576d0437778db2e6521d77872a3d02c755430afdce41321c8489b2c80eff05beaa7bb8e63d3c4abc2298e3fdaca8bd2389027cf1cab4f3ec5820
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SSDEEP
24576:QqGnNerctUvpL0V5Uk86JsJPG8ODWfMMFR5UitDJ6Bz5d:lctOpaWo8aWfLF/f6Bz5d
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5693068931:AAGSQSNIWDJM1FzeZVNHS020I9wVBrQdkRM/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 100 gab.exe -
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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 100 gab.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 100 gab.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 100 gab.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 47 api.ipify.org 48 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1156 set thread context of 1380 1156 100 gab.exe 92 -
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 992 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4372 powershell.exe 116 powershell.exe 4372 powershell.exe 116 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 116 powershell.exe Token: SeDebugPrivilege 4372 powershell.exe Token: SeDebugPrivilege 1380 100 gab.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1156 wrote to memory of 116 1156 100 gab.exe 86 PID 1156 wrote to memory of 116 1156 100 gab.exe 86 PID 1156 wrote to memory of 116 1156 100 gab.exe 86 PID 1156 wrote to memory of 4372 1156 100 gab.exe 88 PID 1156 wrote to memory of 4372 1156 100 gab.exe 88 PID 1156 wrote to memory of 4372 1156 100 gab.exe 88 PID 1156 wrote to memory of 992 1156 100 gab.exe 90 PID 1156 wrote to memory of 992 1156 100 gab.exe 90 PID 1156 wrote to memory of 992 1156 100 gab.exe 90 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 PID 1156 wrote to memory of 1380 1156 100 gab.exe 92 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 100 gab.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 100 gab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\100 gab.exe"C:\Users\Admin\AppData\Local\Temp\100 gab.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\100 gab.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:116
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\daHysTSY.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4372
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\daHysTSY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp14FF.tmp"2⤵
- Creates scheduled task(s)
PID:992
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C:\Users\Admin\AppData\Local\Temp\100 gab.exe"C:\Users\Admin\AppData\Local\Temp\100 gab.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1380
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD5232fec361a7b381d93b831354f0d7c5c
SHA1f1656fa76be11f3499ad07cd631b0656099e8bac
SHA256ff94957bb72c456f71850b13fcd8b22c73f3c20bea902c71648d22262143149d
SHA51281e0ee4cc843058ff34dd41146614ae6bf7203bec8a08091bb381cd8a045a5a858e65772755ccc0311787269cef36f1393e0137bb7c46f99e692e6d162552b32
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD53d891d34a6484e905fa8a159b11fe878
SHA18896219334fa8f05e6f249092197dbcd40c20fbd
SHA256f14e0d8c86cc3ab3758364a9ed370ab76fff08beaedc0d60eeb33e88da395597
SHA512fcb94f8d3dd22e98941038fdf6ae451579f0a1af1beaaed1bfc0ff48aadf668f2d3d83cdb17816174a9487f0576617981ab0beb73b780d01726ace35a6168b1e