agenttesla | 2bb1066b38de737899e64cda171b4129311489ef1cf184246be198af04e9cc7e

General

Target

$PLUGINSDIR/ilrl.dll
Size

39KB
MD5

76edb1ef7191b88b1f7aef00578fa233
SHA1

ac139239a33a9c5010498682842598b3db8cfe47
SHA256

d443dbd070c2c9bfc89727fbba164ead77f562cf29f959762342807ca4f42704
SHA512

111ad9c3b7ba63ba9a44e3bd73049469d6fd6f159a2dc7447b1e7ac0ae342fe091e235582a9990213e703323a7afeb96fc1d756576da5dbae8d1ad96641e769d
SSDEEP

384:PN2NM1++IVFCNnhqFartR1836QlVq4kn6RRCj+7+5YkyXLQY2eCxsd0MSJ:Vb2VFCNAFaJ7arlVhkl5YpSeCi0v

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1900836728:AAEDyoYbBJwtt1EA4hdgRlGTN1cq760KPNU/sendDocument

Signatures

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

AgentTesla payload 4 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1244-1-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral3/memory/1244-5-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral3/memory/1244-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral3/memory/1244-7-0x00000000003A0000-0x00000000003DC000-memory.dmp	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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1908 set thread context of 1244	1908	rundll32.exe	31

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

Processes:

rundll32.exerundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid	Process
1244	rundll32.exe
1244	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description	pid	Process
Token: SeDebugPrivilege	1244	rundll32.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 2360 wrote to memory of 1908	2360	rundll32.exe	30
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31
PID 1908 wrote to memory of 1244	1908	rundll32.exe	31

outlook_office_path 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

outlook_win_path 1 IoCs

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ilrl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ilrl.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ilrl.dll,#1
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:1244

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

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1244-8-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-10-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-5-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1244-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1244-6-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/1244-7-0x00000000003A0000-0x00000000003DC000-memory.dmp

Filesize
240KB

Download
memory/1244-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1244-15-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-12-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/1244-11-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-9-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-13-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1244-14-0x00000000743E0000-0x0000000074ACE000-memory.dmp

Filesize
6.9MB

Download
memory/1908-0-0x0000000010009000-0x000000001000B000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads