agenttesla | 6af7c82eb723da3a13f92ff62b8c1ff491e4c1e3852ea2be095448d6e53d5575

General

Target

RFQ# B1018509.pdf.exe
Size

694KB
MD5

82f3cc2825964580a90ff19356816d2a
SHA1

3cdd786649d98e38da234eddbfb7796d710c757b
SHA256

54d6acb8484b5a951614ee5fdfccac3a6c12fb79047dd92d3915d5237fd9dc51
SHA512

145e167cbd037e050a165529bbdc105b485cc12a8f5bf381a71ee43a2205dcccdaf173e39cabf08d32a77e29fbb469ae8957e9bb1f8d676ee4747fb556e9d56e
SSDEEP

12288:o9m1B++rBUhT1uWO7S4GtSw+6inZe+V+v4R7qvF+5C2xs:7RrBU3HgOtJ+NZoQR74AE

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
H(FPf]j;OgNA

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/2612-15-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2612-19-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2612-17-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2612-11-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/2612-9-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 2612	2348	RFQ# B1018509.pdf.exe	32

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ# B1018509.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2348	RFQ# B1018509.pdf.exe
2348	RFQ# B1018509.pdf.exe
2348	RFQ# B1018509.pdf.exe
2348	RFQ# B1018509.pdf.exe
2348	RFQ# B1018509.pdf.exe
2612	RegSvcs.exe
2612	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	RFQ# B1018509.pdf.exe
Token: SeDebugPrivilege	2612	RegSvcs.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2756	2348	RFQ# B1018509.pdf.exe	31
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32
PID 2348 wrote to memory of 2612	2348	RFQ# B1018509.pdf.exe	32

outlook_office_path 1 IoCs

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

outlook_win_path 1 IoCs

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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\RFQ# B1018509.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ# B1018509.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:2756
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2612

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

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2348-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2348-1-0x00000000009D0000-0x0000000000A84000-memory.dmp

Filesize
720KB

Download
memory/2348-2-0x0000000000560000-0x0000000000572000-memory.dmp

Filesize
72KB

Download
memory/2348-3-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2348-4-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-5-0x00000000049D0000-0x0000000004A42000-memory.dmp

Filesize
456KB

Download
memory/2348-6-0x0000000004BB0000-0x0000000004C1E000-memory.dmp

Filesize
440KB

Download
memory/2348-21-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-20-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-19-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-15-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-7-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-17-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-11-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-9-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-8-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2612-22-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-23-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-24-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2612-25-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download

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