agenttesla | 6d54d3e4524a80426dff0a58f81a3848a6134dff13b4fff65abda706ddb54c20

General

Target

New PO.pdf.'.exe
Size

829KB
MD5

ea2f6afd43fe464c3b90f05762def390
SHA1

cf20ecb582c6c6385860bc7a76a866a3f28c06aa
SHA256

587de2149d6418990852b59fdb044911f6dd33f60bc6392fb2e93c8538b91453
SHA512

409241a1f4e7f284055751881534a932eb23d27edd0779ee78b90b9cc666925a927a3851a37feca63773b1c72f0b1945e9dfc7259b9931066e4de8f1ecdccc60

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

Processes:

resource	yara_rule
behavioral2/memory/2224-125-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2224-126-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral2/memory/2224-132-0x0000000005700000-0x0000000005BFE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

New PO.pdf.'.exe

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

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

New PO.pdf.'.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	New PO.pdf.'.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

New PO.pdf.'.exe

description pid process target process

PID 796 set thread context of 2224 796 New PO.pdf.'.exe New PO.pdf.'.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

New PO.pdf.'.exe

pid process

2224 New PO.pdf.'.exe
2224 New PO.pdf.'.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

New PO.pdf.'.exe

description pid process

Token: SeDebugPrivilege 2224 New PO.pdf.'.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

New PO.pdf.'.exe

pid process

2224 New PO.pdf.'.exe

description	pid	process	target process
PID 796 set thread context of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe

pid	process
2224	New PO.pdf.'.exe
2224	New PO.pdf.'.exe

description	pid	process
Token: SeDebugPrivilege	2224	New PO.pdf.'.exe

pid	process
2224	New PO.pdf.'.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

New PO.pdf.'.exe

description	pid	process	target process
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe
PID 796 wrote to memory of 2224	796	New PO.pdf.'.exe	New PO.pdf.'.exe

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 use of WriteProcessMemory
PID:796

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:2224

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New PO.pdf.'.exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/796-119-0x0000000005450000-0x0000000005451000-memory.dmp

Filesize
4KB

Download
memory/796-124-0x0000000006A20000-0x0000000006A77000-memory.dmp

Filesize
348KB

Download
memory/796-118-0x000000000A730000-0x000000000A731000-memory.dmp

Filesize
4KB

Download
memory/796-114-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/796-120-0x00000000052F0000-0x00000000052F1000-memory.dmp

Filesize
4KB

Download
memory/796-121-0x0000000005460000-0x0000000005465000-memory.dmp

Filesize
20KB

Download
memory/796-117-0x000000000AC30000-0x000000000AC31000-memory.dmp

Filesize
4KB

Download
memory/796-123-0x0000000005980000-0x0000000005A17000-memory.dmp

Filesize
604KB

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memory/796-122-0x0000000005510000-0x0000000005511000-memory.dmp

Filesize
4KB

Download
memory/796-116-0x00000000076B0000-0x0000000007726000-memory.dmp

Filesize
472KB

Download
memory/2224-126-0x000000000043762E-mapping.dmp

Download
memory/2224-125-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2224-132-0x0000000005700000-0x0000000005BFE000-memory.dmp

Filesize
5.0MB

Download
memory/2224-133-0x0000000005830000-0x0000000005831000-memory.dmp

Filesize
4KB

Download
memory/2224-134-0x00000000063F0000-0x00000000063F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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