Analysis
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max time kernel
31s -
max time network
135s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
08-02-2023 01:32
Static task
static1
Behavioral task
behavioral1
Sample
5e3c0b08904d967d151047a51ca76cc1.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
5e3c0b08904d967d151047a51ca76cc1.exe
Resource
win10v2004-20221111-en
General
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Target
5e3c0b08904d967d151047a51ca76cc1.exe
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Size
707KB
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MD5
5e3c0b08904d967d151047a51ca76cc1
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SHA1
6b7893406f444e7132fec10633c9aa63413d3b1f
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SHA256
8aba0e5b9847ec754c70691ce5b2ebe888ea4d3599a3fd7d6b431603ba2d77ad
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SHA512
1f476c300baefadd6bf2adc4fc8f707d3143902905c2626d95f64802f3f21fc45a6024ff5bf9ea9cf5e29bc0482b5f2f6a459700bb6003e46a7ebb526ff5edef
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SSDEEP
6144:cYa6uW0O0WqiBiGei7FTjUosytWnSS1SqYXtbVMXGzcA+KDOTLf2EYs1/rnDVDPv:cYWWqyTTVNVMWzzhAKEL/DpLnFyoLFh
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5661887202:AAEdmGK268nwK3Q0KQ-lOdGhXERPNRUJtz4/
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Executes dropped EXE 3 IoCs
Processes:
bbmyyz.exebbmyyz.exebbmyyz.exepid process 1788 bbmyyz.exe 880 bbmyyz.exe 1100 bbmyyz.exe -
Loads dropped DLL 4 IoCs
Processes:
5e3c0b08904d967d151047a51ca76cc1.exebbmyyz.exepid process 1800 5e3c0b08904d967d151047a51ca76cc1.exe 1800 5e3c0b08904d967d151047a51ca76cc1.exe 1788 bbmyyz.exe 1788 bbmyyz.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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
Processes:
bbmyyz.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bbmyyz.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bbmyyz.exe Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bbmyyz.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
bbmyyz.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\vsbbb = "C:\\Users\\Admin\\AppData\\Roaming\\khyh\\rcanrxn.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\bbmyyz.exe\" C:\\Users\\Admin\\AppData\\Local\\Temp\\n" bbmyyz.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 3 api.ipify.org 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bbmyyz.exedescription pid process target process PID 1788 set thread context of 1100 1788 bbmyyz.exe bbmyyz.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
bbmyyz.exepid process 1788 bbmyyz.exe 1788 bbmyyz.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bbmyyz.exedescription pid process Token: SeDebugPrivilege 1100 bbmyyz.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
bbmyyz.exepid process 1100 bbmyyz.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
5e3c0b08904d967d151047a51ca76cc1.exebbmyyz.exedescription pid process target process PID 1800 wrote to memory of 1788 1800 5e3c0b08904d967d151047a51ca76cc1.exe bbmyyz.exe PID 1800 wrote to memory of 1788 1800 5e3c0b08904d967d151047a51ca76cc1.exe bbmyyz.exe PID 1800 wrote to memory of 1788 1800 5e3c0b08904d967d151047a51ca76cc1.exe bbmyyz.exe PID 1800 wrote to memory of 1788 1800 5e3c0b08904d967d151047a51ca76cc1.exe bbmyyz.exe PID 1788 wrote to memory of 880 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 880 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 880 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 880 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 1100 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 1100 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 1100 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 1100 1788 bbmyyz.exe bbmyyz.exe PID 1788 wrote to memory of 1100 1788 bbmyyz.exe bbmyyz.exe -
outlook_office_path 1 IoCs
Processes:
bbmyyz.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bbmyyz.exe -
outlook_win_path 1 IoCs
Processes:
bbmyyz.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 bbmyyz.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5e3c0b08904d967d151047a51ca76cc1.exe"C:\Users\Admin\AppData\Local\Temp\5e3c0b08904d967d151047a51ca76cc1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe"C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe" C:\Users\Admin\AppData\Local\Temp\nmujlizev.ng2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe"C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe"3⤵
- Executes dropped EXE
PID:880 -
C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe"C:\Users\Admin\AppData\Local\Temp\bbmyyz.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1100
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
7KB
MD55d64f2aa8f76cc3eac6ef81acae2be19
SHA16be992d98667c4b31fd0fba388a36c5a46a699d7
SHA256f052ee1dfe8ed48c03c52f778c8bf9be9b410f8c5730fc7175052675929328b3
SHA512e283ae051843ccc7b69a8f502a4c4e23b3dad5f495b619bdc83cb604294cb035524a55a348cac1c03e5efc3e9fb20a01080f418a84b61192cc74eed7abfad8a8
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Filesize
266KB
MD5e756e6b72dd063d5f7aff061e3f5ccf2
SHA10cccb80542d594a1f0196b627f4a01241de2d57e
SHA25636ccedad0c40453374bef154070dbe68d48e7884b4fd779e57dfaac1c5bc5654
SHA51225a3f3dc261a7a15a68291064456009fa2154098c4f4bc7474a5672fede7507390da30031912887c7004377ed23243f511673af942ebbc5024a313f9554c0e86
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928
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Filesize
80KB
MD5d99e1d848e4eefcbb814ccfb392ab3e9
SHA1ab0750bc7989ee00557f32f83f27b933f79c514a
SHA25648c3b588acde2f4ffa0199bb20421187c009d9cea574ff42b55e4c599149576e
SHA512d70869d861125fba43d9bca9becc844c481c7ec04c6f29be2e09628b0cfbb72c90bd9ceb1403bc562eef3dbdcdcc9f7b2580fcf1db89fdc2b74664f0259c3928