agenttesla | 3c42490be13ea791feda53e89f19abc2c4326cc581e9f7fb4040340e38b5a7c6

General

Target

Rfq clarifications.exe
Size

25KB
MD5

bc48ec658d3ae45d8eaf52b6f1ab75fd
SHA1

6af36a0768884ad9fd39507911d824d1dc2963db
SHA256

3c42490be13ea791feda53e89f19abc2c4326cc581e9f7fb4040340e38b5a7c6
SHA512

76a034e57bb0d6c7159853b1ed78d374b57d55f14d464e49ece07f3e73633bc51eb07b65b708d5288cecfef17d3e6a25706cb2fd00bda0ae4465bb41472a3178

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.modernsystemsco.com
Port:
587
Username:
[email protected]
Password:
Base@2222$

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.modernsystemsco.com
Port:
587
Username:
[email protected]
Password:
Base@2222$
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

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:

Rfq clarifications.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Rfq clarifications.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Rfq clarifications.exe

description pid process target process

PID 3804 set thread context of 4488 3804 Rfq clarifications.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
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3168 timeout.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Rfq clarifications.exeMSBuild.exe

pid process

3804 Rfq clarifications.exe
3804 Rfq clarifications.exe
4488 MSBuild.exe
4488 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Rfq clarifications.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 3804 Rfq clarifications.exe
Token: SeDebugPrivilege 4488 MSBuild.exe

description	pid	process	target process
PID 3804 set thread context of 4488	3804	Rfq clarifications.exe	MSBuild.exe

pid	process
3168	timeout.exe

pid	process
3804	Rfq clarifications.exe
3804	Rfq clarifications.exe
4488	MSBuild.exe
4488	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	3804	Rfq clarifications.exe
Token: SeDebugPrivilege	4488	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Rfq clarifications.execmd.exe

description	pid	process	target process
PID 3804 wrote to memory of 5104	3804	Rfq clarifications.exe	cmd.exe
PID 3804 wrote to memory of 5104	3804	Rfq clarifications.exe	cmd.exe
PID 3804 wrote to memory of 5104	3804	Rfq clarifications.exe	cmd.exe
PID 5104 wrote to memory of 3168	5104	cmd.exe	timeout.exe
PID 5104 wrote to memory of 3168	5104	cmd.exe	timeout.exe
PID 5104 wrote to memory of 3168	5104	cmd.exe	timeout.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe
PID 3804 wrote to memory of 4488	3804	Rfq clarifications.exe	MSBuild.exe

outlook_office_path 1 IoCs

Processes:

MSBuild.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Rfq clarifications.exe
"C:\Users\Admin\AppData\Local\Temp\Rfq clarifications.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 30
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5104
- - C:\Windows\SysWOW64\timeout.exe
    timeout 30
    3⤵
    - Delays execution with timeout.exe
    PID:3168
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4488

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3168-132-0x0000000000000000-mapping.dmp

Download
memory/3804-130-0x00000000009F0000-0x00000000009FC000-memory.dmp

Filesize
48KB

Download
memory/4488-133-0x0000000000000000-mapping.dmp

Download
memory/4488-134-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4488-135-0x0000000005B00000-0x00000000060A4000-memory.dmp

Filesize
5.6MB

Download
memory/4488-136-0x00000000053F0000-0x000000000548C000-memory.dmp

Filesize
624KB

Download
memory/4488-137-0x0000000005A90000-0x0000000005AF6000-memory.dmp

Filesize
408KB

Download
memory/4488-138-0x00000000068B0000-0x0000000006900000-memory.dmp

Filesize
320KB

Download
memory/4488-139-0x00000000066E0000-0x0000000006772000-memory.dmp

Filesize
584KB

Download
memory/4488-140-0x00000000066C0000-0x00000000066CA000-memory.dmp

Filesize
40KB

Download
memory/5104-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads