Analysis
- max time kernel
147s - max time network
106s - platform
windows10_x64 - resource
win10v200722 - submitted
15/08/2020, 07:45
Static task
static1
Behavioral task
behavioral1
Sample
Parcel N0.#EMS9480029121.exe
Resource
win7v200722
Behavioral task
behavioral2
Sample
Parcel N0.#EMS9480029121.exe
Resource
win10v200722
General
- Target Parcel N0.#EMS9480029121.exe
- Size 739KB
- Sample200815-35qdaaptkx
- SHA256 3b74c2f8330e4a13915efff621b1eaba4ba50becaa826071fc9e96edd0079f69
- MD5 4e498eb4dc11e62ee048e2c945c4ce0f
- SHA1 32bb45715bdecc274a24350922ee4cd033c773aa
- SHA512 d0eb52188fb3cb697171654446670c96b702f02805d278e7008b43873bedc6b9c8feddc8538660a944cd007c9bc77c914652dc9c8589ee23035385a0e4ca657d
- MD5 SHA1 SHA512
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
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Port
587
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Username
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Password
333link00win
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/3748-2-0x0000000000400000-0x000000000045A000-memory.dmp family_agenttesla behavioral2/memory/3748-3-0x000000000045451E-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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4036 set thread context of 3748 4036 Parcel N0.#EMS9480029121.exe 74 - 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 2676 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3748 Parcel N0.#EMS9480029121.exe 3748 Parcel N0.#EMS9480029121.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3748 Parcel N0.#EMS9480029121.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3748 Parcel N0.#EMS9480029121.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4036 wrote to memory of 2676 4036 Parcel N0.#EMS9480029121.exe 72 PID 4036 wrote to memory of 2676 4036 Parcel N0.#EMS9480029121.exe 72 PID 4036 wrote to memory of 2676 4036 Parcel N0.#EMS9480029121.exe 72 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74 PID 4036 wrote to memory of 3748 4036 Parcel N0.#EMS9480029121.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\Parcel N0.#EMS9480029121.exe"C:\Users\Admin\AppData\Local\Temp\Parcel N0.#EMS9480029121.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4036 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RhINblGka" /XML "C:\Users\Admin\AppData\Local\Temp\tmp810D.tmp"2⤵
- Creates scheduled task(s)
PID:2676
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C:\Users\Admin\AppData\Local\Temp\Parcel N0.#EMS9480029121.exe"C:\Users\Admin\AppData\Local\Temp\Parcel N0.#EMS9480029121.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3748
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