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Analysis
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max time kernel
151s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2023, 19:54
Static task
static1
Behavioral task
behavioral1
Sample
Purchase-Order.scr.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
Purchase-Order.scr.exe
Resource
win10v2004-20230915-en
General
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Target
Purchase-Order.scr.exe
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Size
672KB
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MD5
7fccb0197c8d6888ab6a5f9713fba9f6
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SHA1
ae8ea47dbb7c8bc40df063ea2e05823e2458cced
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SHA256
b89fe3a178283fbd51ed71bd488e079a81dff40fc7124f57540e98540dce28a1
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SHA512
feccea6ac8dc93c7f3bc88f3e3b2d3a84b11738161c8e1a153c5a8a29e17e424a84b75daf1754dd3e9d0f7f32335b9e1a6aa811349660e4f6837247add0bb7d2
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SSDEEP
12288:UVj3hLQvfdxOo7gpXtrFF725cxd9dvmVV38eIlCwWTIghwhKfwlucbh1ejqaRiv6:sMOfx4twKyxluc90JRk6
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot6364043354:AAF_1bGx2vGEmysmy8L-UNpPd2QFFHQH3WU/
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-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation Purchase-Order.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 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 66 api.ipify.org 67 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4220 set thread context of 1444 4220 Purchase-Order.scr.exe 104 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 1192 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 4220 Purchase-Order.scr.exe 2960 powershell.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 4220 Purchase-Order.scr.exe 1444 Purchase-Order.scr.exe 1444 Purchase-Order.scr.exe 2960 powershell.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4220 Purchase-Order.scr.exe Token: SeDebugPrivilege 2960 powershell.exe Token: SeDebugPrivilege 1444 Purchase-Order.scr.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4220 wrote to memory of 2960 4220 Purchase-Order.scr.exe 100 PID 4220 wrote to memory of 2960 4220 Purchase-Order.scr.exe 100 PID 4220 wrote to memory of 2960 4220 Purchase-Order.scr.exe 100 PID 4220 wrote to memory of 1192 4220 Purchase-Order.scr.exe 102 PID 4220 wrote to memory of 1192 4220 Purchase-Order.scr.exe 102 PID 4220 wrote to memory of 1192 4220 Purchase-Order.scr.exe 102 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104 PID 4220 wrote to memory of 1444 4220 Purchase-Order.scr.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4220 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KxnjucokNh.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2960
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KxnjucokNh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp656C.tmp"2⤵
- Creates scheduled task(s)
PID:1192
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C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"C:\Users\Admin\AppData\Local\Temp\Purchase-Order.scr.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1444
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5f52d376a07e27b3da9fcf75802aceedf
SHA19643a9ce81433b74d4611a5bd845f49ede2361f6
SHA256c4f73df048b56064ecdfc3ed6ebd5e73d9bd3ae3a97cc8db91b27033f5e21e5c
SHA5124d15998b117b89e64ff1585ba023b0d70f78ab9a14bd678069a467a6dedf4b082abb239711cf27071ad3068d5e65abfbd5d2edb04a27505e82b242a9b3ffd9ff