Analysis
- max time kernel
133s - max time network
114s - platform
windows10_x64 - resource
win10v20210410 - submitted
13/07/2021, 09:54
Static task
static1
Behavioral task
behavioral1
Sample
dhl SOA docs.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
dhl SOA docs.exe
Resource
win10v20210410
General
- Target dhl SOA docs.exe
- Size 819KB
- Sample210713-hs49ccankx
- SHA256 ea08fc031bc184b29f528ea6f2d34a8e8537356cb2b36826c653d769674601b3
- MD5 3011459beb921953638bdada04d05378
- SHA1 c18dfb039619f9273e8b23aa790ad2a4e85cc3f1
- SHA512 741eabb7dc2013b744fdafe292af7abbfeb0f6981867097d94657e9d0b9772cb489cd7599647e2dba6415424efe414f1f066454fdf4cc18374e8a0d837db1b24
- MD5 SHA1 SHA512
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1633482536:AAF1JIS_DaayovuRrLGy_POYaI3DRc2CrPY/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/1972-126-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla behavioral2/memory/1972-127-0x000000000043779E-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 3768 set thread context of 1972 3768 dhl SOA docs.exe 81 - 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 2720 schtasks.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1972 dhl SOA docs.exe 1972 dhl SOA docs.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1972 dhl SOA docs.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3768 wrote to memory of 2720 3768 dhl SOA docs.exe 79 PID 3768 wrote to memory of 2720 3768 dhl SOA docs.exe 79 PID 3768 wrote to memory of 2720 3768 dhl SOA docs.exe 79 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81 PID 3768 wrote to memory of 1972 3768 dhl SOA docs.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\dhl SOA docs.exe"C:\Users\Admin\AppData\Local\Temp\dhl SOA docs.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KZPkos" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4AD.tmp"2⤵
- Creates scheduled task(s)
PID:2720
-
-
C:\Users\Admin\AppData\Local\Temp\dhl SOA docs.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1972
-