agenttesla | df6e5a970596d544e6f644924cafadda5a596e2337621ea98829bd36801fa02c

General

Target

AgentTesla.exe
Size

965KB
MD5

10888cbc0356d7ed153c9d646e650b67
SHA1

fe0d31a7ee4cae23de596186512c6af1310ead4c
SHA256

df6e5a970596d544e6f644924cafadda5a596e2337621ea98829bd36801fa02c
SHA512

a64b4b9e5525a6c609d1eac830a25d7d95e3ab9b6c9374130728bbdd8ddd492676cb8bb60d39139aadf18e8f7adf715d222b5596d7df601b8317cda78dc335c9

Score

10^/10

agenttesla keylogger spyware stealer trojan upx

Malware Config

Signatures

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

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00040000000131ab-0.dat	acprotect

AgentTesla Payload 8 IoCs

resource	yara_rule
behavioral1/memory/832-2-0x00000000005621E0-mapping.dmp	family_agenttesla
behavioral1/memory/832-4-0x0000000000400000-0x0000000000564000-memory.dmp	family_agenttesla
behavioral1/memory/832-5-0x0000000001ED0000-0x0000000001F7C000-memory.dmp	family_agenttesla
behavioral1/memory/832-7-0x0000000000220000-0x00000000002C5000-memory.dmp	family_agenttesla
behavioral1/memory/984-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/984-14-0x0000000000446E4E-mapping.dmp	family_agenttesla
behavioral1/memory/984-16-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/984-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
984	InstallUtil.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00040000000131ab-0.dat	upx
behavioral1/memory/832-1-0x0000000000400000-0x0000000000564000-memory.dmp	upx
behavioral1/memory/832-3-0x0000000000400000-0x0000000000564000-memory.dmp	upx
behavioral1/memory/832-4-0x0000000000400000-0x0000000000564000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1100	AgentTesla.exe
832	AgentTesla.exe

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 832	1100	AgentTesla.exe	24
PID 832 set thread context of 984	832	AgentTesla.exe	25

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	AgentTesla.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1100	AgentTesla.exe
832	AgentTesla.exe
832	AgentTesla.exe
832	AgentTesla.exe
984	InstallUtil.exe
984	InstallUtil.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1100	AgentTesla.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1100	AgentTesla.exe
Token: SeDebugPrivilege	832	AgentTesla.exe
Token: SeDebugPrivilege	984	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 832	1100	AgentTesla.exe	24
PID 1100 wrote to memory of 832	1100	AgentTesla.exe	24
PID 1100 wrote to memory of 832	1100	AgentTesla.exe	24
PID 1100 wrote to memory of 832	1100	AgentTesla.exe	24
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25
PID 832 wrote to memory of 984	832	AgentTesla.exe	25

C:\Users\Admin\AppData\Local\Temp\AgentTesla.exe
"C:\Users\Admin\AppData\Local\Temp\AgentTesla.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100
- C:\Users\Admin\AppData\Local\Temp\AgentTesla.exe
  "C:\Users\Admin\AppData\Local\Temp\AgentTesla.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:832
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:984

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/832-4-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/832-5-0x0000000001ED0000-0x0000000001F7C000-memory.dmp

Filesize
688KB

Download
memory/832-6-0x0000000001EC2000-0x0000000001EC3000-memory.dmp

Filesize
4KB

Download
memory/832-7-0x0000000000220000-0x00000000002C5000-memory.dmp

Filesize
660KB

Download
memory/832-3-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/832-1-0x0000000000400000-0x0000000000564000-memory.dmp

Filesize
1.4MB

Download
memory/984-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/984-16-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/984-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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