agenttesla | b2fec7c9ee68e53467712bacefb86507a4ef63a7cd5b2cf42ce7de9afb97bb8c

General

Target

Shipping Docs_pdf.exe
Size

351KB
MD5

86d06f4e172dc0ac0564057ada796bab
SHA1

c49fab3918e0330fb4a70b37cfb017d1322785c0
SHA256

b2fec7c9ee68e53467712bacefb86507a4ef63a7cd5b2cf42ce7de9afb97bb8c
SHA512

0852963fa9de9de630dc9d9dbbdf373172cb7db38e90d5732af831e7323546f296b0828754a8c52dd5f450be8fcc03c4a39b4586cfe494b4ff0f714ab7e89e50

Score

10^/10

agenttesla collection evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ht-sae.com
Port:
587
Username:
[email protected]
Password:
#Gmi*)V7

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1444-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1444-67-0x0000000000436C4E-mapping.dmp	family_agenttesla
behavioral1/memory/1444-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/860-71-0x0000000002390000-0x0000000002FDA000-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:

Shipping Docs_pdf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Shipping Docs_pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Shipping Docs_pdf.exe

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
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Shipping Docs_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping Docs_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping Docs_pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping Docs_pdf.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:

Shipping Docs_pdf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Shipping Docs_pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Shipping Docs_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Shipping Docs_pdf.exe

description pid process target process

PID 320 set thread context of 1444 320 Shipping Docs_pdf.exe Shipping Docs_pdf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Shipping Docs_pdf.exepowershell.exe

pid process

1444 Shipping Docs_pdf.exe
1444 Shipping Docs_pdf.exe
860 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Shipping Docs_pdf.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1444 Shipping Docs_pdf.exe
Token: SeDebugPrivilege 860 powershell.exe

description	pid	process	target process
PID 320 set thread context of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe

pid	process
1444	Shipping Docs_pdf.exe
1444	Shipping Docs_pdf.exe
860	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1444	Shipping Docs_pdf.exe
Token: SeDebugPrivilege	860	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Shipping Docs_pdf.exe

description	pid	process	target process
PID 320 wrote to memory of 860	320	Shipping Docs_pdf.exe	powershell.exe
PID 320 wrote to memory of 860	320	Shipping Docs_pdf.exe	powershell.exe
PID 320 wrote to memory of 860	320	Shipping Docs_pdf.exe	powershell.exe
PID 320 wrote to memory of 860	320	Shipping Docs_pdf.exe	powershell.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 320 wrote to memory of 1444	320	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe

outlook_office_path 1 IoCs

Processes:

Shipping Docs_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping Docs_pdf.exe

outlook_win_path 1 IoCs

Processes:

Shipping Docs_pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Shipping Docs_pdf.exe

C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:860
- C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

2

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/320-56-0x00000000009E0000-0x00000000009E1000-memory.dmp

Filesize
4KB

Download
memory/320-57-0x0000000000A90000-0x0000000000A97000-memory.dmp

Filesize
28KB

Download
memory/320-58-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/320-59-0x0000000005000000-0x0000000005057000-memory.dmp

Filesize
348KB

Download
memory/320-54-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/860-71-0x0000000002390000-0x0000000002FDA000-memory.dmp

Filesize
12.3MB

Download
memory/860-60-0x0000000000000000-mapping.dmp

Download
memory/860-61-0x0000000074B41000-0x0000000074B43000-memory.dmp

Filesize
8KB

Download
memory/860-73-0x0000000002390000-0x0000000002FDA000-memory.dmp

Filesize
12.3MB

Download
memory/860-70-0x0000000002390000-0x0000000002FDA000-memory.dmp

Filesize
12.3MB

Download
memory/1444-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1444-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1444-67-0x0000000000436C4E-mapping.dmp

Download
memory/1444-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1444-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1444-72-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/1444-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1444-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads