agenttesla | 587de2149d6418990852b59fdb044911f6dd33f60bc6392fb2e93c8538b91453

Analysis

max time kernel
128s
max time network
110s
platform
windows10_x64
resource
win10v20210410
submitted
19/04/2021, 14:52

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General

Target
New PO.pdf.'.exe
Size 829KB
Sample210419-xc7asdzzxs
SHA256 587de2149d6418990852b59fdb044911f6dd33f60bc6392fb2e93c8538b91453
MD5 ea2f6afd43fe464c3b90f05762def390
SHA1 cf20ecb582c6c6385860bc7a76a866a3f28c06aa
SHA512 409241a1f4e7f284055751881534a932eb23d27edd0779ee78b90b9cc666925a927a3851a37feca63773b1c72f0b1945e9dfc7259b9931066e4de8f1ecdccc60
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.lallyautomobiles.net
Port
587
Username
[email protected]
Password
Welcome@2021

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3412-125-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3412-126-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral2/memory/3412-132-0x00000000055C0000-0x0000000005ABE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	New PO.pdf.'.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	New PO.pdf.'.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1908 set thread context of 3412	1908	New PO.pdf.'.exe	80

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1908	New PO.pdf.'.exe
1908	New PO.pdf.'.exe
3412	New PO.pdf.'.exe
3412	New PO.pdf.'.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1908	New PO.pdf.'.exe
Token: SeDebugPrivilege	3412	New PO.pdf.'.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3412	New PO.pdf.'.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 3360	1908	New PO.pdf.'.exe	79
PID 1908 wrote to memory of 3360	1908	New PO.pdf.'.exe	79
PID 1908 wrote to memory of 3360	1908	New PO.pdf.'.exe	79
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80
PID 1908 wrote to memory of 3412	1908	New PO.pdf.'.exe	80

C:\Users\Admin\AppData\Local\Temp\New PO.pdf.'.exe
"C:\Users\Admin\AppData\Local\Temp\New PO.pdf.'.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Users\Admin\AppData\Local\Temp\New PO.pdf.'.exe
  "{path}"
  2⤵
  PID:3360
- C:\Users\Admin\AppData\Local\Temp\New PO.pdf.'.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3412

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1908-119-0x000000000ACD0000-0x000000000ACD1000-memory.dmp

Download

memory/1908-123-0x0000000005D00000-0x0000000005D97000-memory.dmp

Download

memory/1908-118-0x000000000AB60000-0x000000000AB61000-memory.dmp

Download

memory/1908-114-0x0000000000D90000-0x0000000000D91000-memory.dmp

Download

memory/1908-120-0x0000000003260000-0x0000000003261000-memory.dmp

Download

memory/1908-121-0x00000000057E0000-0x00000000057E5000-memory.dmp

Download

memory/1908-117-0x000000000B060000-0x000000000B061000-memory.dmp

Download

memory/1908-116-0x0000000005610000-0x0000000005686000-memory.dmp

Download

memory/1908-122-0x0000000005890000-0x0000000005891000-memory.dmp

Download

memory/1908-124-0x0000000005DA0000-0x0000000005DF7000-memory.dmp

Download

memory/3412-125-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/3412-132-0x00000000055C0000-0x0000000005ABE000-memory.dmp

Download

memory/3412-133-0x0000000005A10000-0x0000000005A11000-memory.dmp

Download

memory/3412-134-0x00000000062B0000-0x00000000062B1000-memory.dmp

Download