Analysis
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max time kernel
137s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
12-12-2023 14:58
Static task
static1
Behavioral task
behavioral1
Sample
Past due invoice payment.exe
Resource
win7-20231129-en
General
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Target
Past due invoice payment.exe
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Size
663KB
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MD5
ffe2ddbe2537808b1624d03a4022d9c9
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SHA1
7474c0969e4964cd4b637dc8bd6a1ac3b059ab1b
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SHA256
6c2f5afa91ac37f222db8a2055e183efc732e08596f9e4cb664d0453ac5c8f3c
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SHA512
9f4cc453010b576833e7f77b94d64abbbfc70f1ef2d0805e475c74e1f4910b6694d42f50fb28646170cf86260d48dda29ab142ca81675c7fe66520657acdc036
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SSDEEP
12288:5JG8+4WpAEdy73wnXhlVIOgDSjyqMBbGm1jz4MUrHc1AL4N0s+:ApAEE8xJgDS+qMhGYTUme
Malware Config
Extracted
Protocol: ftp- Host:
ftp.mercuresurabaya.com - Port:
21 - Username:
[email protected] - Password:
2ffPmXZ_5A{G
Extracted
agenttesla
Protocol: ftp- Host:
ftp://ftp.mercuresurabaya.com - Port:
21 - Username:
[email protected] - Password:
2ffPmXZ_5A{G
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect ZGRat V1 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2584-6-0x0000000004F50000-0x0000000004F68000-memory.dmp family_zgrat_v1 -
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.
Processes:
flow ioc 63 api.ipify.org 64 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Past due invoice payment.exedescription pid process target process PID 2584 set thread context of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Past due invoice payment.exePast due invoice payment.exepid process 2584 Past due invoice payment.exe 2584 Past due invoice payment.exe 4820 Past due invoice payment.exe 4820 Past due invoice payment.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Past due invoice payment.exePast due invoice payment.exedescription pid process Token: SeDebugPrivilege 2584 Past due invoice payment.exe Token: SeDebugPrivilege 4820 Past due invoice payment.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Past due invoice payment.exedescription pid process target process PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe PID 2584 wrote to memory of 4820 2584 Past due invoice payment.exe Past due invoice payment.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Past due invoice payment.exe"C:\Users\Admin\AppData\Local\Temp\Past due invoice payment.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2584 -
C:\Users\Admin\AppData\Local\Temp\Past due invoice payment.exe"C:\Users\Admin\AppData\Local\Temp\Past due invoice payment.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4820
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3