agenttesla | c1faff57e041b52c6dc2a251eb60521621fc796330169d4e5b04a6e84cf49bf2

General

Target

Pictures&Designs jpg jpg jpg jpg.exe
Size

985KB
MD5

f18c8bfd7050c5c9e3b5490eb056281c
SHA1

05f0b62ff015ecb90ca36495c94842bef9a1ba45
SHA256

d98b551ba123d7020b8bcc1835f0bbeb103e50d18a3d341771e1a05b1edfaf87
SHA512

e616ede3c6514b6de6b4bee70fee764d04ea602640067cb5fb18aa00d7339c0d0f59a2b9a842cfa9fd1bc2383e9cfde217004ab247343aa959a51d181604083a

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
abouttomarry123

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
abouttomarry123

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral8/memory/2660-134-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Pictures&Designs jpg jpg jpg jpg.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Pictures&Designs jpg jpg jpg jpg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Pictures&Designs jpg jpg jpg jpg.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Pictures&Designs jpg jpg jpg jpg.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Pictures&Designs jpg jpg jpg jpg.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Pictures&Designs jpg jpg jpg jpg.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Pictures&Designs jpg jpg jpg jpg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Pictures&Designs jpg jpg jpg jpg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Pictures&Designs jpg jpg jpg jpg.exe

description pid process target process

PID 1736 set thread context of 2660 1736 Pictures&Designs jpg jpg jpg jpg.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2612 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Pictures&Designs jpg jpg jpg jpg.exeMSBuild.exe

pid process

1736 Pictures&Designs jpg jpg jpg jpg.exe
2660 MSBuild.exe
2660 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Pictures&Designs jpg jpg jpg jpg.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1736 Pictures&Designs jpg jpg jpg jpg.exe
Token: SeDebugPrivilege 2660 MSBuild.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

2660 MSBuild.exe

description	pid	process	target process
PID 1736 set thread context of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe

pid	process
2612	schtasks.exe

pid	process
1736	Pictures&Designs jpg jpg jpg jpg.exe
2660	MSBuild.exe
2660	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1736	Pictures&Designs jpg jpg jpg jpg.exe
Token: SeDebugPrivilege	2660	MSBuild.exe

pid	process
2660	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Pictures&Designs jpg jpg jpg jpg.exe

description	pid	process	target process
PID 1736 wrote to memory of 2612	1736	Pictures&Designs jpg jpg jpg jpg.exe	schtasks.exe
PID 1736 wrote to memory of 2612	1736	Pictures&Designs jpg jpg jpg jpg.exe	schtasks.exe
PID 1736 wrote to memory of 2612	1736	Pictures&Designs jpg jpg jpg jpg.exe	schtasks.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe
PID 1736 wrote to memory of 2660	1736	Pictures&Designs jpg jpg jpg jpg.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Pictures&Designs jpg jpg jpg jpg.exe
"C:\Users\Admin\AppData\Local\Temp\Pictures&Designs jpg jpg jpg jpg.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PLdDNErXYSoYw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E28.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2612
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:2660

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5E28.tmp

Filesize
1KB

MD5
bb462328d8946752ab819ef76956cbe5

SHA1
98d5e0d568a180cb7b51d704569fc9da65367396

SHA256
0a305e34ff57e6c9867efe34b70a2e749d2173a12c7604082587fbaa2673cb37

SHA512
1095db4e5d497a2211db0d51a15fb192e7450af20666911fd6ede61f78bfd177986394a06f98624a014b75b30155a84b8d07f1649709881de6c96628f65523fd

Download Submit
memory/1736-130-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download
memory/2612-131-0x0000000000000000-mapping.dmp

Download
memory/2660-133-0x0000000000000000-mapping.dmp

Download
memory/2660-134-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/2660-135-0x00000000749C0000-0x0000000074F71000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads