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Analysis
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max time kernel
102s -
max time network
158s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-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 7 IoCs
resource yara_rule behavioral1/memory/524-68-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/524-67-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/524-70-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/524-72-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/524-74-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/524-75-0x0000000004AA0000-0x0000000004AE0000-memory.dmp family_snakekeylogger behavioral1/memory/524-76-0x0000000004AA0000-0x0000000004AE0000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 6 IoCs
resource yara_rule behavioral1/memory/524-68-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/524-67-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/524-70-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/524-72-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/524-74-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/524-76-0x0000000004AA0000-0x0000000004AE0000-memory.dmp family_stormkitty -
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-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1724 set thread context of 524 1724 Inquiry65621.exe 30 -
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 1036 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 524 Inquiry65621.exe 524 Inquiry65621.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1724 Inquiry65621.exe Token: SeDebugPrivilege 524 Inquiry65621.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1724 wrote to memory of 1036 1724 Inquiry65621.exe 28 PID 1724 wrote to memory of 1036 1724 Inquiry65621.exe 28 PID 1724 wrote to memory of 1036 1724 Inquiry65621.exe 28 PID 1724 wrote to memory of 1036 1724 Inquiry65621.exe 28 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 PID 1724 wrote to memory of 524 1724 Inquiry65621.exe 30 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Inquiry65621.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\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⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BRwSVjIH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDC0E.tmp"2⤵
- Creates scheduled task(s)
PID:1036
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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:524
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5d51dbe3177bc12c81bc8eb311f285506
SHA1936f91710ad21b6bfc8f9c265330205d748f1bba
SHA256d1474e64f439d2d9eec35d965fbc1bce610d3ab6dac1d319020985a378b4cfd1
SHA5129c784acf7111dd8cd48c52ab5cd4762f49c86d521e30194779cdb56436ad7568887032c3dfda401396c10edfecf95e1ebeed9d07d81e7fdfcc5e52aeb591edf9