agenttesla | b774c08d6cd60de0b59191fe1102105eec3cde3ffab89daeb4faa8a88747e9e5

General

Target

invoice copy.pdf.exe
Size

951KB
MD5

3e6acec29c526b5546a5cb38d16c8d04
SHA1

3953b813d92a30446487b02fd1ef1fe96bece8e3
SHA256

b774c08d6cd60de0b59191fe1102105eec3cde3ffab89daeb4faa8a88747e9e5
SHA512

a9e3d6f9cc90aee7119facec54d4fddf52e6eb9a5fe12d13f1f3d01ce6dc8803e0dff62f5f7b3a229bcf6db55cc170ce74bb856d945b9971ec78e477012b85e4

Score

10^/10

spyware keylogger trojan stealer agenttesla

Malware Config

Signatures

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

invoice copy.pdf.exe

pid process

1492 invoice copy.pdf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

invoice copy.pdf.exe

description pid process target process

PID 1492 set thread context of 744 1492 invoice copy.pdf.exe invoice copy.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

invoice copy.pdf.exe

description pid process

Token: SeDebugPrivilege 744 invoice copy.pdf.exe

pid	process
1492	invoice copy.pdf.exe

description	pid	process	target process
PID 1492 set thread context of 744	1492	invoice copy.pdf.exe	invoice copy.pdf.exe

description	pid	process
Token: SeDebugPrivilege	744	invoice copy.pdf.exe

UPX packed file 3 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/744-0-0x0000000000400000-0x00000000004A4000-memory.dmp	upx
behavioral1/memory/744-2-0x0000000000400000-0x00000000004A4000-memory.dmp	upx
behavioral1/memory/744-3-0x0000000000400000-0x00000000004A4000-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 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

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

invoice copy.pdf.exe

description	pid	process	target process
PID 1492 wrote to memory of 744	1492	invoice copy.pdf.exe	invoice copy.pdf.exe
PID 1492 wrote to memory of 744	1492	invoice copy.pdf.exe	invoice copy.pdf.exe
PID 1492 wrote to memory of 744	1492	invoice copy.pdf.exe	invoice copy.pdf.exe
PID 1492 wrote to memory of 744	1492	invoice copy.pdf.exe	invoice copy.pdf.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

invoice copy.pdf.exeinvoice copy.pdf.exe

pid process

1492 invoice copy.pdf.exe
744 invoice copy.pdf.exe
744 invoice copy.pdf.exe

pid	process
1492	invoice copy.pdf.exe
744	invoice copy.pdf.exe
744	invoice copy.pdf.exe

C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
PID:1492

C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copy.pdf.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
PID:744

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/744-0-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/744-1-0x00000000004A2410-mapping.dmp

Download
memory/744-2-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/744-3-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/744-4-0x0000000000340000-0x000000000038C000-memory.dmp

Filesize
304KB

Download
memory/744-5-0x0000000001FF2000-0x0000000001FF3000-memory.dmp

Filesize
4KB

Download
memory/744-6-0x0000000000220000-0x0000000000266000-memory.dmp

Filesize
280KB

Download

Analysis

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