Analysis
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max time kernel
133s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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
Protocol: smtp- Host:
mail.libreriamarpe.com - Port:
587 - Username:
[email protected] - Password:
f9mU@96n
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 1 IoCs
resource yara_rule behavioral2/memory/3084-141-0x0000000000400000-0x0000000000426000-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/3084-141-0x0000000000400000-0x0000000000426000-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-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Recibo de transferencía.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\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 22 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 408 set thread context of 3084 408 Recibo de transferencía.exe 90 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 408 Recibo de transferencía.exe 408 Recibo de transferencía.exe 3084 Recibo de transferencía.exe 3084 Recibo de transferencía.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 408 Recibo de transferencía.exe Token: SeDebugPrivilege 3084 Recibo de transferencía.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 PID 408 wrote to memory of 3084 408 Recibo de transferencía.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\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-1-5-21-1675742406-747946869-1029867430-1000\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:408 -
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:3084
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5b57b1ea0e9817bd8c90747e991b77447
SHA1df63d993dd8b356c2aa8bdd5fed4ead467d0ef1f
SHA256af13b787c47fa267cbca28ec758f254d5407c5a418fb86fff25ce5aec8b0f99c
SHA51231e8ed3d1f8a3050b53e2b54ded1cde057ab76da28785347ba45a24535974207b14cb7f54f620f6e3a6e679705d7349005d7c29170d988c09c071c852cde621c