Analysis
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max time kernel
113s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
08/05/2023, 08:24
Static task
static1
Behavioral task
behavioral1
Sample
Recibo de transferencía.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Recibo de transferencía.exe
Resource
win10v2004-20230220-en
General
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Target
Recibo de transferencía.exe
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Size
513KB
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MD5
8acfcea0026a2d49f39db27fb7bd6efc
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SHA1
d8050f59f21df56233c8a8d60ae71e12041efb10
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SHA256
d82034c5d5633ff4f38939fd15a82c3612886742e8bedf4060fdb2129c09aacb
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SHA512
0b0f8dee37469700eea862abd0fb4eb6a0edc1935f4e67ddaa42397b23129341c4d3c64d645ee3417ab34863635acd0fb6ce7b5cb1c69545c02ca7fb077cb641
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SSDEEP
6144:Ykz9Cie9gbdpEUZ7eq+GzOTl12tXZv1cJmA5Wy9Eq9FkIo+oaf53kjs4YRISyA/Q:PRNnboGfNcz5Wy9B3eaWjs7isDxKpPp
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.libreriamarpe.com - Port:
587 - Username:
[email protected] - Password:
f9mU@96n - Email To:
[email protected]
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/540-63-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/540-64-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/540-66-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/540-68-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/540-70-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger behavioral1/memory/540-71-0x0000000004C60000-0x0000000004CA0000-memory.dmp family_snakekeylogger behavioral1/memory/540-72-0x0000000004C60000-0x0000000004CA0000-memory.dmp family_snakekeylogger -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 7 IoCs
resource yara_rule behavioral1/memory/540-63-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/540-64-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/540-66-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/540-68-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/540-70-0x0000000000400000-0x0000000000426000-memory.dmp family_stormkitty behavioral1/memory/540-71-0x0000000004C60000-0x0000000004CA0000-memory.dmp family_stormkitty behavioral1/memory/540-72-0x0000000004C60000-0x0000000004CA0000-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-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.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 1072 set thread context of 540 1072 Recibo de transferencía.exe 27 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1072 Recibo de transferencía.exe 1072 Recibo de transferencía.exe 540 Recibo de transferencía.exe 540 Recibo de transferencía.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1072 Recibo de transferencía.exe Token: SeDebugPrivilege 540 Recibo de transferencía.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 PID 1072 wrote to memory of 540 1072 Recibo de transferencía.exe 27 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"C:\Users\Admin\AppData\Local\Temp\Recibo de transferencía.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:540
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