Analysis
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max time kernel
139s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2023 16:50
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_20191102_073809_405251-PDF.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_20191102_073809_405251-PDF.exe
Resource
win10v2004-20231130-en
General
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Target
Halkbank_Ekstre_20191102_073809_405251-PDF.exe
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Size
988KB
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MD5
0f93c17cac1c2dd8b332bf2d53aa2f8c
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SHA1
8848bf63c85f1743d63d458819ab4632f80b4cc9
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SHA256
4b01f24d97fef59510e2a99a4d75d48f7dbe8445e5fe05a3602fb7a12094ade9
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SHA512
b1b7968abe71cdf12c1aa3bed07fdde8282126faf2bd1386c8fccc0bfdc3ae39b10d94155a96770bc72dee60d6265ce45a8211e4624b3e25c1e08bc7794a2c89
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SSDEEP
12288:o6UYBXALb35v+g4IwbmB1fRcmjMx7jghB/8SBJxVtQD2b62SgM5DqanwP7r9r/+l:1SbIPIhbNM1sh9BR1q
Malware Config
Extracted
Protocol: smtp- Host:
mail.rolexlogisticsservice.com - Port:
587 - Username:
[email protected] - Password:
0.p-TydLJ-3Z
Extracted
agenttesla
Protocol: smtp- Host:
mail.rolexlogisticsservice.com - Port:
587 - Username:
[email protected] - Password:
0.p-TydLJ-3Z - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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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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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 47 api.ipify.org 48 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1436 set thread context of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 5012 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 5012 Halkbank_Ekstre_20191102_073809_405251-PDF.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe Token: SeDebugPrivilege 5012 Halkbank_Ekstre_20191102_073809_405251-PDF.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5012 Halkbank_Ekstre_20191102_073809_405251-PDF.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1436 wrote to memory of 1760 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 98 PID 1436 wrote to memory of 1760 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 98 PID 1436 wrote to memory of 1760 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 98 PID 1436 wrote to memory of 4748 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 99 PID 1436 wrote to memory of 4748 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 99 PID 1436 wrote to memory of 4748 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 99 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100 PID 1436 wrote to memory of 5012 1436 Halkbank_Ekstre_20191102_073809_405251-PDF.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436 -
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"2⤵PID:1760
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"2⤵PID:4748
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20191102_073809_405251-PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank_Ekstre_20191102_073809_405251-PDF.exe.log
Filesize1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3