Analysis
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max time kernel
135s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21/04/2023, 15:33
Static task
static1
Behavioral task
behavioral1
Sample
Confirmación de recibo de transferencia.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Confirmación de recibo de transferencia.exe
Resource
win10v2004-20230220-en
General
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Target
Confirmación de recibo de transferencia.exe
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Size
574KB
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MD5
658700b2c4fc938f3a4b4873d1067d18
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SHA1
6b42d8df3782f1306086a9a301006c60e4e82d50
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SHA256
297bcb98149a7029793c38e7827aba52e746e97a1a0fa85ac80a7b97bbc247f0
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SHA512
b4ce47444f3a0434151fdb5da9792a197aaa2a3127f3f00708b6a13a54a84738dcc4fdb066ad74d2d0b4cfdae8cd49c32aafafaf011e6fe9421a94f28fd41319
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SSDEEP
6144:piPhtKUPAwGPICWf2yTTJ4A8b/ndXeTtH3piH/KVoaDYRSOqhbLZyWzeLntPK0E+:U+oBnknETt6yxhLZyMUntS5
Malware Config
Extracted
Protocol: smtp- Host:
mail.condominioaocubo.pt - Port:
587 - Username:
[email protected] - Password:
Qualidade.c3.2018
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.condominioaocubo.pt - Port:
587 - Username:
[email protected] - Password:
Qualidade.c3.2018 - 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/4460-140-0x0000000000400000-0x0000000000426000-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/4460-140-0x0000000000400000-0x0000000000426000-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-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de recibo de transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de recibo de transferencia.exe Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de recibo de transferencia.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 4480 set thread context of 4460 4480 Confirmación de recibo de transferencia.exe 90 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4460 Confirmación de recibo de transferencia.exe 4460 Confirmación de recibo de transferencia.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4460 Confirmación de recibo de transferencia.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4460 Confirmación de recibo de transferencia.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 PID 4480 wrote to memory of 4460 4480 Confirmación de recibo de transferencia.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de recibo de transferencia.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Confirmación de recibo de transferencia.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4480 -
C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4460
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Confirmación de recibo de transferencia.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3