agenttesla | da2d328729fc82001649fea94517079e39a3579d3154778bda61072c5c3b2590

General

Target

PO-20200709.exe
Size

922KB
MD5

c2a716ded7676fcc85c9f7299128e85a
SHA1

c612356859cc4f15e251a22f009f86e0acce05d9
SHA256

da2d328729fc82001649fea94517079e39a3579d3154778bda61072c5c3b2590
SHA512

d8754f6fe55228e3fbde6d8a4390f396817873adc3f6f8962bc527b8d1c373752ca5e3c36cb88980b69555632005d9ba04a73aec4dc4fbb07d0c62a70c0589d0

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dstec.mx
Port:
587
Username:
[email protected]
Password:
.chimaobi@070

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
behavioral1/memory/852-3-0x0000000000400000-0x00000000004A5000-memory.dmp	family_agenttesla
behavioral1/memory/852-4-0x0000000000380000-0x00000000003CC000-memory.dmp	family_agenttesla
behavioral1/memory/852-6-0x0000000000220000-0x0000000000267000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	PO-20200709.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/852-0-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/852-2-0x0000000000400000-0x00000000004A5000-memory.dmp	upx
behavioral1/memory/852-3-0x0000000000400000-0x00000000004A5000-memory.dmp	upx

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

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

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

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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Start = "C:\\Users\\Admin\\AppData\\Roaming\\Start\\Start.exe"	PO-20200709.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1012 set thread context of 852	1012	PO-20200709.exe	24

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1012	PO-20200709.exe
852	PO-20200709.exe
852	PO-20200709.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1012	PO-20200709.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	852	PO-20200709.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 852	1012	PO-20200709.exe	24
PID 1012 wrote to memory of 852	1012	PO-20200709.exe	24
PID 1012 wrote to memory of 852	1012	PO-20200709.exe	24
PID 1012 wrote to memory of 852	1012	PO-20200709.exe	24

C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe
"C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1012
- C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:852

Network

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

Replay Monitor

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Downloads

memory/852-0-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/852-2-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/852-3-0x0000000000400000-0x00000000004A5000-memory.dmp

Filesize
660KB

Download
memory/852-4-0x0000000000380000-0x00000000003CC000-memory.dmp

Filesize
304KB

Download
memory/852-5-0x0000000001F92000-0x0000000001F93000-memory.dmp

Filesize
4KB

Download
memory/852-6-0x0000000000220000-0x0000000000267000-memory.dmp

Filesize
284KB

Download

Analysis

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