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Analysis
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max time kernel
157s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
05/05/2023, 20:44
Static task
static1
Behavioral task
behavioral1
Sample
Inquiry65621.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Inquiry65621.exe
Resource
win10v2004-20230220-en
General
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Target
Inquiry65621.exe
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Size
535KB
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MD5
24f71f1a4b23df2ec4a3b397c787f46b
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SHA1
e6bd139200d4514c9769cbd91bceace8b120d5c7
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SHA256
69e2e592529984388953e4cc8f782b96ff622fd05c29e455864408f8f6d1d275
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SHA512
4bd5f694bd180fb243ca985c9dd470095dd0bec004e6eb43ca9780600eebeab42736e03fe46e6f4029f09e985e5e04d35bec0c5d62b333ccfb7821e392c3b561
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SSDEEP
12288:oSnRKqnAok2N2THEWkbIyYvJ3F7Kwm5BVqy1V:rnPnhWHyYvJ3F7Kwi6o
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.thanhphuong.com.vn - Port:
587 - Username:
[email protected] - Password:
87IRKR4d
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/1428-146-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/1428-146-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty -
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-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation Inquiry65621.exe -
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-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.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 26 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2068 set thread context of 1428 2068 Inquiry65621.exe 91 -
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 2232 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2068 Inquiry65621.exe 1428 Inquiry65621.exe 1428 Inquiry65621.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2068 Inquiry65621.exe Token: SeDebugPrivilege 1428 Inquiry65621.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2068 wrote to memory of 2232 2068 Inquiry65621.exe 89 PID 2068 wrote to memory of 2232 2068 Inquiry65621.exe 89 PID 2068 wrote to memory of 2232 2068 Inquiry65621.exe 89 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 PID 2068 wrote to memory of 1428 2068 Inquiry65621.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe"C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BRwSVjIH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD3AB.tmp"2⤵
- Creates scheduled task(s)
PID:2232
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C:\Users\Admin\AppData\Local\Temp\Inquiry65621.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1428
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD517573558c4e714f606f997e5157afaac
SHA113e16e9415ceef429aaf124139671ebeca09ed23
SHA256c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
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Filesize
1KB
MD52ba37946bcddfd6f243566cb67236ec8
SHA171e121a2b7c5b91207561630e8efbc603a808910
SHA2562eae6d372cb285064d88fc87345759be2c18236924cc1ccb830dd0f2dd02ec8b
SHA51258e1acc7e59ff195448dcc0d444189328e38e107de684278239acd79d1d14290c522bbf4b8e7e939a571c86fa65010068ffc11bbef74085f588e3840a2685f8c