agenttesla | 7725d7b433b154bd610e8bc940c3aac2c874901fe65a07ebe4289e5b133493f3

General

Target

Proforma invoice_pdf.exe
Size

1016KB
MD5

65952e6521043c913df7baa481b6fe30
SHA1

81345f3e07ebf087d2dc01d1370f8920855b17c8
SHA256

7725d7b433b154bd610e8bc940c3aac2c874901fe65a07ebe4289e5b133493f3
SHA512

d893346d1a1508dc012e9442c63bfc4c3ae881d93f15171462f4323de6251a10c72c4ef649c52b372aae2ecd7ff48051ec1c38cf01fb1b7175f9fbe416a3b385
SSDEEP

24576:rrx3K9ZTjDwTdj8R5Bs2BNZGhPK9v5qntI2EOc/Hf8xK:xeRDwTB+jBNZGhPq5q62goK

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.huiijingco.com
Port:
587
Username:
[email protected]
Password:
lNLUrZT2

Signatures

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

AgentTesla payload 6 IoCs

resource	yara_rule
behavioral1/memory/1508-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1508-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1508-68-0x0000000000436C5E-mapping.dmp	family_agenttesla
behavioral1/memory/1508-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1508-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1508-72-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	Proforma invoice_pdf.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	Proforma invoice_pdf.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Proforma invoice_pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Proforma invoice_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Proforma invoice_pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Proforma invoice_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 1508	1800	Proforma invoice_pdf.exe	31

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

pid	Process
268	powershell.exe
1508	Proforma invoice_pdf.exe
1508	Proforma invoice_pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	268	powershell.exe
Token: SeDebugPrivilege	1508	Proforma invoice_pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 268	1800	Proforma invoice_pdf.exe	28
PID 1800 wrote to memory of 268	1800	Proforma invoice_pdf.exe	28
PID 1800 wrote to memory of 268	1800	Proforma invoice_pdf.exe	28
PID 1800 wrote to memory of 268	1800	Proforma invoice_pdf.exe	28
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31
PID 1800 wrote to memory of 1508	1800	Proforma invoice_pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\Proforma invoice_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma invoice_pdf.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1800
- 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\Proforma invoice_pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:268
- C:\Users\Admin\AppData\Local\Temp\Proforma invoice_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Proforma invoice_pdf.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/268-74-0x000000006FAA0000-0x000000007004B000-memory.dmp

Filesize
5.7MB

Download
memory/268-73-0x000000006FAA0000-0x000000007004B000-memory.dmp

Filesize
5.7MB

Download
memory/1508-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-72-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1508-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1800-58-0x00000000054E0000-0x000000000557E000-memory.dmp

Filesize
632KB

Download
memory/1800-54-0x0000000001340000-0x0000000001444000-memory.dmp

Filesize
1.0MB

Download
memory/1800-61-0x0000000005770000-0x00000000057D4000-memory.dmp

Filesize
400KB

Download
memory/1800-57-0x00000000003B0000-0x00000000003BA000-memory.dmp

Filesize
40KB

Download
memory/1800-56-0x0000000000310000-0x0000000000326000-memory.dmp

Filesize
88KB

Download
memory/1800-55-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads