agenttesla | 395781e01823a5dc3960c27dce7a2f8ad92423dd0c74df38ff583367d06310a1

General

Target

Comprobante de pago.pdf.exe
Size

2.2MB
MD5

4975e77aa7db89e438da054870282656
SHA1

01c131d5d3d87470b6c74673f310bf742b0b1cdf
SHA256

16362b718dada80d2e68e3495d78e32fc5bfa05d730ec1a451daf6cff9e6cabe
SHA512

93f214fb28ebaa4ac45141401e6d29f401f062087fa81eb0a494527e3ae0d66ea0daff6022f89b6f8881e295279f2c5c2fb84a322e3108f62f2aac3ae59d8ff6
SSDEEP

49152:HX3ASbdYAm4zEbdYAm4zWbdYAm4z23Ag3AWbdYAm4zSbdYAm4zO3AGyhdWn:HnA4drWdr0drkASA0dr4dr8AGi

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.lampadari.gr
Port:
21
Username:
[email protected]
Password:
P8P[uVeJU=vh

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
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
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
16	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 4404	2336	Comprobante de pago.pdf.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Comprobante de pago.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4404	regasm.exe
4404	regasm.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2336	Comprobante de pago.pdf.exe
2336	Comprobante de pago.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4404	regasm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2336	Comprobante de pago.pdf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 4472	2336	Comprobante de pago.pdf.exe	83
PID 2336 wrote to memory of 4472	2336	Comprobante de pago.pdf.exe	83
PID 2336 wrote to memory of 4472	2336	Comprobante de pago.pdf.exe	83
PID 2336 wrote to memory of 4472	2336	Comprobante de pago.pdf.exe	83
PID 2336 wrote to memory of 4404	2336	Comprobante de pago.pdf.exe	84
PID 2336 wrote to memory of 4404	2336	Comprobante de pago.pdf.exe	84
PID 2336 wrote to memory of 4404	2336	Comprobante de pago.pdf.exe	84
PID 2336 wrote to memory of 4404	2336	Comprobante de pago.pdf.exe	84

C:\Users\Admin\AppData\Local\Temp\Comprobante de pago.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Comprobante de pago.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  PID:4472
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2336-2-0x0000000077BC2000-0x0000000077BC3000-memory.dmp

Filesize
4KB

Download
memory/2336-3-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/2336-8-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2336-13-0x000000002FDD0000-0x0000000030000000-memory.dmp

Filesize
2.2MB

Download
memory/2336-12-0x000000002FDDE000-0x000000002FDDF000-memory.dmp

Filesize
4KB

Download
memory/2336-11-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2336-10-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2336-9-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/2336-17-0x000000002FDD0000-0x0000000030000000-memory.dmp

Filesize
2.2MB

Download
memory/2336-36-0x000000002FDD0000-0x0000000030000000-memory.dmp

Filesize
2.2MB

Download
memory/2336-43-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/2336-42-0x000000002FDD0000-0x0000000030000000-memory.dmp

Filesize
2.2MB

Download
memory/4404-47-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4404-46-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/4404-45-0x0000000077BC2000-0x0000000077BC3000-memory.dmp

Filesize
4KB

Download
memory/4404-44-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download
memory/4404-40-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/4404-48-0x0000000005800000-0x0000000005DA4000-memory.dmp

Filesize
5.6MB

Download
memory/4404-49-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/4404-50-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download
memory/4404-51-0x00000000065B0000-0x0000000006600000-memory.dmp

Filesize
320KB

Download
memory/4404-52-0x00000000066A0000-0x0000000006732000-memory.dmp

Filesize
584KB

Download
memory/4404-53-0x0000000006630000-0x000000000663A000-memory.dmp

Filesize
40KB

Download
memory/4404-54-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/4404-55-0x0000000074980000-0x0000000075130000-memory.dmp

Filesize
7.7MB

Download

Analysis

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