Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24-09-2024 19:43
Static task
static1
Behavioral task
behavioral1
Sample
POInvoiceXJ210821Q.PDF.scr.exe
Resource
win7-20240903-en
General
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Target
POInvoiceXJ210821Q.PDF.scr.exe
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Size
674KB
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MD5
b93e5d5b8d6e25ea9107769128334130
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SHA1
eaa57f101eec3faaa8ca9a767a07e4cdef35999e
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SHA256
4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283
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SHA512
52dfb3178800cf6905ba2e5d4c351a176b3feb531329d5bd7ba3135843dbeacad3814a82eaf3ecdf0e5e47261d7cd3d4043b616a10a2b79c194566fbb33a0657
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SSDEEP
12288:AO98bQbs8+iS6RGUfSjWFa9Rh1iEIhjz3DO8ITXykKsSWScPx3ZokkR:ArIJ+7dUfSjWA9Rh14Jy8qZuWbx3Zg
Malware Config
Extracted
Protocol: ftp- Host:
ftp.libreriagandhi.cl - Port:
21 - Username:
[email protected] - Password:
x6p2^m#1#~+O
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.libreriagandhi.cl - Port:
21 - Username:
[email protected] - Password:
x6p2^m#1#~+O
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4612 powershell.exe 4804 powershell.exe -
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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation POInvoiceXJ210821Q.PDF.scr.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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 37 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4844 set thread context of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language POInvoiceXJ210821Q.PDF.scr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language POInvoiceXJ210821Q.PDF.scr.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1216 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 23 IoCs
pid Process 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 4804 powershell.exe 4612 powershell.exe 4844 POInvoiceXJ210821Q.PDF.scr.exe 2840 POInvoiceXJ210821Q.PDF.scr.exe 2840 POInvoiceXJ210821Q.PDF.scr.exe 4612 powershell.exe 4804 powershell.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4844 POInvoiceXJ210821Q.PDF.scr.exe Token: SeDebugPrivilege 4804 powershell.exe Token: SeDebugPrivilege 4612 powershell.exe Token: SeDebugPrivilege 2840 POInvoiceXJ210821Q.PDF.scr.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4844 wrote to memory of 4612 4844 POInvoiceXJ210821Q.PDF.scr.exe 91 PID 4844 wrote to memory of 4612 4844 POInvoiceXJ210821Q.PDF.scr.exe 91 PID 4844 wrote to memory of 4612 4844 POInvoiceXJ210821Q.PDF.scr.exe 91 PID 4844 wrote to memory of 4804 4844 POInvoiceXJ210821Q.PDF.scr.exe 93 PID 4844 wrote to memory of 4804 4844 POInvoiceXJ210821Q.PDF.scr.exe 93 PID 4844 wrote to memory of 4804 4844 POInvoiceXJ210821Q.PDF.scr.exe 93 PID 4844 wrote to memory of 1216 4844 POInvoiceXJ210821Q.PDF.scr.exe 95 PID 4844 wrote to memory of 1216 4844 POInvoiceXJ210821Q.PDF.scr.exe 95 PID 4844 wrote to memory of 1216 4844 POInvoiceXJ210821Q.PDF.scr.exe 95 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97 PID 4844 wrote to memory of 2840 4844 POInvoiceXJ210821Q.PDF.scr.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe"C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4844 -
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\POInvoiceXJ210821Q.PDF.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4612
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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\zDowlSskSU.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4804
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zDowlSskSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp635.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1216
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C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe"C:\Users\Admin\AppData\Local\Temp\POInvoiceXJ210821Q.PDF.scr.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2840
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
2KB
MD5968cb9309758126772781b83adb8a28f
SHA18da30e71accf186b2ba11da1797cf67f8f78b47c
SHA25692099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
SHA5124bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
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Filesize
18KB
MD547e4d525484eddc51ea53292f01432b2
SHA1520fbe69218b7b3ed1c29d7aeb90efdf8aebf429
SHA256156003363d6f585ba96fd78f26ccd2f46d5fc7c2b510b78101761ef07c062a5d
SHA5125267e0d096cd36b0c99db5d4246e7a1a06631888b5345b412f239746ca8b9d97cb6cef07b5cc9b88af29bdd7f0a32b308d10feca86e5a1cfa2e256e6d0488557
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5d89443f8ffb033cc5a00157c8a7ed909
SHA1a5cb68e84c6ecaac540148283ed6cd41dd07c038
SHA2561d5e80ce23c9b6df184e8879f31c95c306acf9579e270e8fca8fbd81b6e8cf55
SHA512c38165033907862e03c9796b3ffbca788bbe07a513a600ee53e3c2e17f1c82091d7312021a106bfba3d3ee0e1dc419eb7b2355b541ee8d0dc61522a6c76d1b50