Analysis
- max time kernel
143s - 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
28/05/2023, 07:21
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4856aa91b3b25dc702acee5419906c0d.exe
Resource
win7-20230220-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
4856aa91b3b25dc702acee5419906c0d.exe
Resource
win10v2004-20230220-en
12 signatures
150 seconds
General
- Target 4856aa91b3b25dc702acee5419906c0d.exe
- Size 787KB
- Sample230528-h6nrjsfa4s
- SHA256 0140ef4dd7bd4b560548e2b9f74ae66006efc7d0e0b3b017251f755bbd8b601c
- MD5 4856aa91b3b25dc702acee5419906c0d
- SHA1 ede60a132a27265595f8744a44ea13f371357d08
- SHA512 eb74fa093c1ae40ce7cdb51fa0afbb7f849f90e496ce6bac0732dfe6a9307c28fdb1ab953e4b732b358a8fe6597a2937f6ab5b211cc3e5a6305dfe48bc0189d5
- SSDEEP 12288:TJas7z5GoJiGaq5aulLfqPoSCccNJzT5Fkjy6v6z4TgnnFxZAY6gvCd41x:I65GoR5ambqPo7Bk+6v6kTgFxiVd41
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
agenttesla
C2
-
https://api.telegram.org/bot5083863399:AAH9g72QTdN88jNOd6_tBrE8gEd-FpXnfHE/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla payload 1 IoCs
resource yara_rule behavioral2/memory/4984-140-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4856aa91b3b25dc702acee5419906c0d.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4856aa91b3b25dc702acee5419906c0d.exe Key opened \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 4856aa91b3b25dc702acee5419906c0d.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4348 set thread context of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4984 4856aa91b3b25dc702acee5419906c0d.exe 4984 4856aa91b3b25dc702acee5419906c0d.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4984 4856aa91b3b25dc702acee5419906c0d.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 PID 4348 wrote to memory of 4984 4348 4856aa91b3b25dc702acee5419906c0d.exe 91 - 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 4856aa91b3b25dc702acee5419906c0d.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 4856aa91b3b25dc702acee5419906c0d.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4856aa91b3b25dc702acee5419906c0d.exe"C:\Users\Admin\AppData\Local\Temp\4856aa91b3b25dc702acee5419906c0d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Users\Admin\AppData\Local\Temp\4856aa91b3b25dc702acee5419906c0d.exe"C:\Users\Admin\AppData\Local\Temp\4856aa91b3b25dc702acee5419906c0d.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4984
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4856aa91b3b25dc702acee5419906c0d.exe.log
- Size 1KB
- SHA256 5923ff37c18eb6e68484a34f3ec7c46e96fa001b5ee631d1d36abc5aa5d06cb3
- MD5 26fca6ddb2cb55afb57990593a1d380d
- SHA1 bb8c804de58d02b828845d7d4f957c8818802ac4
- SHA512 c2047db825d5a728aaaeba91a235206e5aa781c44b57fdfad9f3ef17896e8a3bec17d504eb2495e946fcc968a7cb1071b272a4f443c1ede59e2fd4adcaa1b591
- MD5 SHA1 SHA512