agenttesla | 760f9466fa2fdbaf89286ba7c48b6746827a268e6d3ac4e20f377d15a4c09b2f

General

Target

DHL 08102020 0013456 09876.exe
Size

770KB
MD5

7ba4cbfd2c65ee56f79122c087a5cb3d
SHA1

b0952fe773b43850742bf8ca0e7e69b87e4042de
SHA256

1eb80076d32a7919086f64f0fd8bbb87f2116992719c9d67e679f3c76a2e9392
SHA512

d6695512546c6e77d40e4a25b76dd79f50323ee5dc3cda24f149b74d07ca2fd1f4dc1795e738d6b137ae311104a6fbb79811676db13d7f902b6a7c9de680067d
SSDEEP

12288:1jR4XZUNvv1y6kU2KMn9226/Zz0zIdKBxq9grpiAeve/ckjQc:X4pXU0n426ByIdKyCQAev5kjB

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.wtgriderline.com
Port:
587
Username:
[email protected]
Password:
wyiKluF9

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/2844-17-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/2844-21-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/2844-19-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/2844-14-0x0000000000400000-0x0000000000458000-memory.dmp	family_agenttesla
behavioral1/memory/2844-12-0x0000000000400000-0x0000000000458000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1688 set thread context of 2844	1688	DHL 08102020 0013456 09876.exe	30

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	DHL 08102020 0013456 09876.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1688	DHL 08102020 0013456 09876.exe
1688	DHL 08102020 0013456 09876.exe
1688	DHL 08102020 0013456 09876.exe
1688	DHL 08102020 0013456 09876.exe
1688	DHL 08102020 0013456 09876.exe
1688	DHL 08102020 0013456 09876.exe
2844	MSBuild.exe
2844	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	DHL 08102020 0013456 09876.exe
Token: SeDebugPrivilege	2844	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30
PID 1688 wrote to memory of 2844	1688	DHL 08102020 0013456 09876.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\DHL 08102020 0013456 09876.exe
"C:\Users\Admin\AppData\Local\Temp\DHL 08102020 0013456 09876.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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:2844

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

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/1688-0-0x00000000740DE000-0x00000000740DF000-memory.dmp

Filesize
4KB

Download
memory/1688-1-0x0000000000A50000-0x0000000000B16000-memory.dmp

Filesize
792KB

Download
memory/1688-2-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/1688-3-0x0000000000360000-0x0000000000370000-memory.dmp

Filesize
64KB

Download
memory/1688-4-0x00000000740DE000-0x00000000740DF000-memory.dmp

Filesize
4KB

Download
memory/1688-5-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/1688-6-0x0000000002150000-0x00000000021C2000-memory.dmp

Filesize
456KB

Download
memory/1688-7-0x00000000020B0000-0x0000000002108000-memory.dmp

Filesize
352KB

Download
memory/1688-23-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-21-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-17-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-22-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-9-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-19-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-16-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-14-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-10-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-12-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2844-24-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-25-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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