Analysis
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max time kernel
168s -
max time network
196s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
01-01-2024 19:54
Static task
static1
Behavioral task
behavioral1
Sample
3dbc477725b5a88f511f1b4e3bcc38fc.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3dbc477725b5a88f511f1b4e3bcc38fc.exe
Resource
win10v2004-20231222-en
General
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Target
3dbc477725b5a88f511f1b4e3bcc38fc.exe
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Size
1.0MB
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MD5
3dbc477725b5a88f511f1b4e3bcc38fc
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SHA1
a81ed8a5aed97fb6efa956e5c485f2aad8467e9f
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SHA256
8742189aa8e9303ed7ce67da39348d2bb6628a6c5243c6e9a968499098f42178
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SHA512
60de5350d98658ab152bd361e5a7fe6c5c3f294ced8067a8ea1a3e98004759723457a9e9e36a6cc01c5a35474ab4db06695111a0143972ffb0fdfe55c97da517
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SSDEEP
12288:CGj/sthsNaJ31H2FTQi66ulHOG8BmRSdss/K0Iwxz0GAoSKv4wvx0mwTiEH8vPNG:9othaFMiA78BTQRGLgw0XTiEHwm
Malware Config
Extracted
blustealer
Protocol: smtp- Host:
mail.yekamuhendislik.com - Port:
587 - Username:
[email protected] - Password:
MuhasebE123*
Signatures
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A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
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BluStealer
A Modular information stealer written in Visual Basic.
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A310logger Executable 2 IoCs
resource yara_rule behavioral1/files/0x0007000000015dc1-51.dat a310logger behavioral1/memory/2296-55-0x0000000000AB0000-0x0000000000B62000-memory.dmp a310logger -
Executes dropped EXE 1 IoCs
pid Process 2296 Fox.exe -
Loads dropped DLL 1 IoCs
pid Process 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fox.exe Key opened \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fox.exe Key opened \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fox.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2940 set thread context of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.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 1992 schtasks.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2940 wrote to memory of 1992 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 28 PID 2940 wrote to memory of 1992 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 28 PID 2940 wrote to memory of 1992 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 28 PID 2940 wrote to memory of 1992 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 28 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 2940 wrote to memory of 1260 2940 3dbc477725b5a88f511f1b4e3bcc38fc.exe 30 PID 1260 wrote to memory of 2296 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe 31 PID 1260 wrote to memory of 2296 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe 31 PID 1260 wrote to memory of 2296 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe 31 PID 1260 wrote to memory of 2296 1260 3dbc477725b5a88f511f1b4e3bcc38fc.exe 31 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fox.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 Fox.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2940 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VqTEFYQXsiQibk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C89.tmp"2⤵
- Creates scheduled task(s)
PID:1992
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C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"C:\Users\Admin\AppData\Local\Temp\3dbc477725b5a88f511f1b4e3bcc38fc.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\Fox.exe3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:2296
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD50933d1632c9aac5fa564ded3531c0a44
SHA1c524ab38393d0fb301221ca614ed8c39bb4787c7
SHA256ac3172cd001a2b4454bec49897e03780b4435830f24bf70181fbc64f66294b0f
SHA512739cc907ad5ea3da8607c5d6972a2cc3120b819a8a95b098868aa6e6c5262bfdfbb5576e9ea19085197d0cc332473094f318e2c7386584fadd48084439c76cad
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Filesize
285KB
MD540a9752d59f2883e40d928f85a749008
SHA1c60fb58eff64a7969b46f3934766f991352eeb47
SHA256ef95540ec8dae3d255439fb847d26397c265b5cccda5ed0d6b9ed3dda14a2820
SHA512ce33985f91103315accb1039635488d7e144df264bab8e164c1f9844ce6923e1c9c76349f14542901887ffcbbbca40b92cf474126f0b94893e8af1f608464b3c
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Filesize
689KB
MD591b41651e6e9ab352805c6d35a297d08
SHA111b8eaa7b7941461bc952b11ec3f07d25dcd1c2e
SHA2560872abe29cc9231cdded3a44e02a7ea17f09cf2ac2bdbd7077065858829c3723
SHA512b0b0d73f6ac7b6e9b39db0fa58931873143f6559c3b8d3db2d82d453045f75da94f3236b6c6c5200b52af6cacc038565eb2e9c6a834608dac0b0e8bb45b1e892