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Analysis
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max time kernel
115s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system -
submitted
08/07/2024, 14:42
Static task
static1
Behavioral task
behavioral1
Sample
PO-020716-WA0002.pdf..exe
Resource
win7-20240220-en
General
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Target
PO-020716-WA0002.pdf..exe
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Size
696KB
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MD5
c51a9f02f48f2b02ecbbe5f330c211a4
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SHA1
394e84d7e16cf386f4b33bb2761cfb9beb13595a
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SHA256
636943f682f71370760679bd6afb382f5e0aacf31995624007c6541eddd62f53
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SHA512
085f8c471bfed18d83795cdc6acb44730c637a2b106188edda8cefbea9213923d638a107ec5052b426e0d14f2d8c7fd10f5c89c816ae5da29ca28fcf55eb46fb
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SSDEEP
12288:fY/SDzsiLGVTYEMaWrrdmZzaXRaHd/7g9JYms1PAo6:fY/SDDSfMhvgacd/qJYms1Yx
Malware Config
Extracted
Protocol: smtp- Host:
smtp.brianberrills-ie.com - Port:
587 - Username:
[email protected] - Password:
k)(yecz3
Extracted
agenttesla
Protocol: smtp- Host:
smtp.brianberrills-ie.com - Port:
587 - Username:
[email protected] - Password:
k)(yecz3 - 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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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 3844 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-1-5-21-587429654-1855694383-2268796072-1000\Control Panel\International\Geo\Nation PO-020716-WA0002.pdf..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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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 14 api.ipify.org 15 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2068 set thread context of 1388 2068 PO-020716-WA0002.pdf..exe 87 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1388 PO-020716-WA0002.pdf..exe 1388 PO-020716-WA0002.pdf..exe 3844 powershell.exe 3844 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1388 PO-020716-WA0002.pdf..exe Token: SeDebugPrivilege 3844 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2068 wrote to memory of 3844 2068 PO-020716-WA0002.pdf..exe 85 PID 2068 wrote to memory of 3844 2068 PO-020716-WA0002.pdf..exe 85 PID 2068 wrote to memory of 3844 2068 PO-020716-WA0002.pdf..exe 85 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87 PID 2068 wrote to memory of 1388 2068 PO-020716-WA0002.pdf..exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2068 -
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\PO-020716-WA0002.pdf..exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3844
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C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"C:\Users\Admin\AppData\Local\Temp\PO-020716-WA0002.pdf..exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1388
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82