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Analysis
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max time kernel
143s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
21/05/2022, 03:34
Static task
static1
Behavioral task
behavioral1
Sample
Alfa Bank 052020.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
Alfa Bank 052020.exe
Resource
win10v2004-20220414-en
General
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Target
Alfa Bank 052020.exe
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Size
912KB
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MD5
84944bb019baca46b4a6e8beada5b97d
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SHA1
6f7ff04ddbacea914bc620e0bcb55f8809db674a
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SHA256
d9a20b5a29f7c7a81854af1fb1dfe50dc63ec6026d07d271b1d3be30b061ca0f
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SHA512
d375bc4e98153edf4b7799ba90d03ea425357ee2a043b7f883d19ce2cb4e1dc21fff501b355d4ca1ee70a357209e0ef505f2f7958dc87b07d94dd23df6be7ca2
Malware Config
Extracted
Protocol: smtp- Host:
smtp.privateemail.com - Port:
587 - Username:
[email protected] - Password:
Protected@123
Signatures
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
resource yara_rule behavioral1/memory/1260-56-0x0000000000480000-0x0000000000488000-memory.dmp coreentity -
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 32 IoCs
resource yara_rule behavioral1/memory/1996-63-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-64-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-65-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-66-0x00000000004A1A8E-mapping.dmp family_masslogger behavioral1/memory/1996-68-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-70-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-72-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-74-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-76-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-78-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-80-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-82-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-84-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-86-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-88-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-90-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-92-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-94-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-96-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-98-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-100-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-102-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-104-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-106-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-108-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-110-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-112-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-114-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-116-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-118-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-120-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger behavioral1/memory/1996-122-0x0000000000400000-0x00000000004A6000-memory.dmp family_masslogger -
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
yara_rule masslogger_log_file -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
resource yara_rule behavioral1/memory/1260-57-0x0000000005BD0000-0x0000000005C7E000-memory.dmp rezer0 -
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-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation Alfa Bank 052020.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 15 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Alfa Bank 052020.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook Alfa Bank 052020.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook Alfa Bank 052020.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key created \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook Alfa Bank 052020.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.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 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1260 set thread context of 1996 1260 Alfa Bank 052020.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 2016 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1996 Alfa Bank 052020.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1996 Alfa Bank 052020.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1996 Alfa Bank 052020.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1996 Alfa Bank 052020.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1260 wrote to memory of 2016 1260 Alfa Bank 052020.exe 26 PID 1260 wrote to memory of 2016 1260 Alfa Bank 052020.exe 26 PID 1260 wrote to memory of 2016 1260 Alfa Bank 052020.exe 26 PID 1260 wrote to memory of 2016 1260 Alfa Bank 052020.exe 26 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 PID 1260 wrote to memory of 1996 1260 Alfa Bank 052020.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe -
outlook_win_path 1 IoCs
description ioc Process Key queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Alfa Bank 052020.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Alfa Bank 052020.exe"C:\Users\Admin\AppData\Local\Temp\Alfa Bank 052020.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DNdDTmnIdpat" /XML "C:\Users\Admin\AppData\Local\Temp\tmp63E2.tmp"2⤵
- Creates scheduled task(s)
PID:2016
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C:\Users\Admin\AppData\Local\Temp\Alfa Bank 052020.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1996
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD5656c5b02c7adbf30cf65f53958ef2b5a
SHA1509c0c09e8ece33066b793ae986d88d7a2d78dd3
SHA256c0cb82a47f7ab6404ef8e774332683057b7b97946417f60fd8363f8a12f796b5
SHA512bc07bf52df3c5dfc8a2d3dc862998c28442cac609cfa74f16ba96d953395e5c4acef22a12e9e92471a6026ed002fdd4393ec652f135cb1cd4fbe5ce3ec8063a8