Analysis
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max time kernel
143s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231127-en -
resource tags
arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system -
submitted
06-12-2023 17:13
Static task
static1
Behavioral task
behavioral1
Sample
KNP10WS150RJB 5K.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
KNP10WS150RJB 5K.exe
Resource
win10v2004-20231127-en
General
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Target
KNP10WS150RJB 5K.exe
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Size
812KB
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MD5
73c4d511b769f0869c87b5d4621f2a81
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SHA1
a8928f94fc09b95a019ca5cc4a7f3c0f89966684
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SHA256
e71a07f99b82d89d7dcd21041055ec628b6c8855af5f44f954354dee5fa6fb74
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SHA512
9d886ebccc71c4e060fafdcf2d736fea2ec391495935c20fa5542f2fb7ec045587cbe25f408f239be7616c6b027e7590ee5ee121306952514ed6e0586f39d8d4
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SSDEEP
24576:/34/up+pJBv8nNX2ohpy+1AphoGJLYQgll7Bq:/38PJ2NziyAphoGxYZl
Malware Config
Extracted
Protocol: smtp- Host:
sg3plcpnl0195.prod.sin3.secureserver.net - Port:
587 - Username:
[email protected] - Password:
V#[email protected]&Qo!
Extracted
agenttesla
Protocol: smtp- Host:
sg3plcpnl0195.prod.sin3.secureserver.net - Port:
587 - Username:
[email protected] - Password:
V#[email protected]&Qo! - 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 52 api.ipify.org 54 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2776 set thread context of 804 2776 KNP10WS150RJB 5K.exe 102 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 804 KNP10WS150RJB 5K.exe 804 KNP10WS150RJB 5K.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 804 KNP10WS150RJB 5K.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102 PID 2776 wrote to memory of 804 2776 KNP10WS150RJB 5K.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:804
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3