Analysis
- max time kernel
125s - max time network
132s - platform
windows10_x64 - resource
win10 - submitted
17/08/2020, 08:09
Static task
static1
Behavioral task
behavioral1
Sample
Packing List.exe
Resource
win7v200722
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
Packing List.exe
Resource
win10
0 signatures
0 seconds
General
- Target Packing List.exe
- Size 470KB
- Sample200817-hlzcmcefds
- SHA256 1d835ccaee0da78b01a8e8b1d738f195c8fc08ddcfa7da17223645a2bf47df04
- MD5 109f44025e9798675d4b73a53f3c266e
- SHA1 a5cd6ff71ac73831a8c0c65a98b6235f5148d9f2
- SHA512 3339041b161635c74e797458cd806844797e08e7616069140eeec4c7c6c968c75fcfffded0db66a546ccdfec04e6ce69b6160cd5259292b9e07e571add5f5a5b
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
agenttesla
Credentials
-
Protocol
smtp
-
Host
mail.threewaystoharems.com
-
Port
587
-
Username
-
Password
sales@123456
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3328-12-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/3328-13-0x000000000044737E-mapping.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.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" Packing List.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2788 set thread context of 3328 2788 Packing List.exe 70 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3932 schtasks.exe - Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2788 Packing List.exe 2788 Packing List.exe 2788 Packing List.exe 2788 Packing List.exe 2788 Packing List.exe 3328 Packing List.exe 3328 Packing List.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 3328 Packing List.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2788 Packing List.exe Token: SeDebugPrivilege 3328 Packing List.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2788 wrote to memory of 3932 2788 Packing List.exe 67 PID 2788 wrote to memory of 3932 2788 Packing List.exe 67 PID 2788 wrote to memory of 3932 2788 Packing List.exe 67 PID 2788 wrote to memory of 3252 2788 Packing List.exe 69 PID 2788 wrote to memory of 3252 2788 Packing List.exe 69 PID 2788 wrote to memory of 3252 2788 Packing List.exe 69 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70 PID 2788 wrote to memory of 3328 2788 Packing List.exe 70
Processes
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C:\Users\Admin\AppData\Local\Temp\Packing List.exe"C:\Users\Admin\AppData\Local\Temp\Packing List.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VofGbcsZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8817.tmp"2⤵
- Creates scheduled task(s)
PID:3932
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C:\Users\Admin\AppData\Local\Temp\Packing List.exe"{path}"2⤵PID:3252
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C:\Users\Admin\AppData\Local\Temp\Packing List.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:3328
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