Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
05-04-2024 06:20
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Purchase Order.exe
Resource
win10v2004-20240319-en
General
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Target
Purchase Order.exe
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Size
491KB
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MD5
10e2a14bbd30f30c2cb7260741a3d70f
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SHA1
aaf6c61c6f5e908e164de1b539096caf9fd9b4d2
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SHA256
8fb359ccf3a3b6a0eff8204f9ee27c2dc41b3270721716192a7ef9253453b59b
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SHA512
c5c6f9aaad1299239264b0a4ae2012f0ef477bca2f28d7c6900893e8f81141c5b5113979b50f25dd5637da332e4418bd96a3000a9307c0e4e9542ace2a512618
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SSDEEP
12288:r5UHYFLi26lnnhwrqslyuBRlGxR7LBGJi:KHYFLiPlhwGKyuLlGxtwY
Malware Config
Extracted
Protocol: smtp- Host:
us2.smtp.mailhostbox.com - Port:
587 - Username:
[email protected] - Password:
EbxKZL@2
Extracted
snakekeylogger
https://scratchdreams.tk
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 5 IoCs
resource yara_rule behavioral1/memory/2648-8-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2648-9-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2648-12-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2648-14-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/2648-16-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1992 set thread context of 2648 1992 Purchase Order.exe 28 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2648 Purchase Order.exe 2648 Purchase Order.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2648 Purchase Order.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 PID 1992 wrote to memory of 2648 1992 Purchase Order.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Purchase Order.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2648
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