agenttesla | 3b84acfb0076055b0be8086d2f256ea7bcebc0ce0231b003b3ac263ee59303f0

General

Target

RFQ REF R2100131410.pdf.exe
Size

637KB
MD5

5c590fcb32aedec16532aa857eec28b5
SHA1

d72754476c6339fd6469b7a1a6e6ca3af718673b
SHA256

61e5a9d4e73fd837d919eedcdf4afcca159875f4ec7b0a1a57c873c54c442c9c
SHA512

7ba191c522fcb1fbf21fc223faa338156695bdae1e74489620cd2afcd282326cd3115166daf1bc1e96ed7d215cd8fcdc873dd9bc2960d9d91a5d89e026355c8b
SSDEEP

12288:/I+asIz+XShvzObsgg1S9p0HEjtR3hwuOUY6yjKMlfp/WmMQCfDZEJ0:7qCeSj0HEjTCuOgy+Ip/F2De

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
[email protected]
Password:
pYtLbiBtpF6mtjE

Signatures

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

AgentTesla payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2576-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2576-13-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2576-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2576-19-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2576-21-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2576-24-0x0000000004870000-0x00000000048B0000-memory.dmp	family_agenttesla
behavioral1/memory/2576-27-0x0000000004870000-0x00000000048B0000-memory.dmp	family_agenttesla

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RFQ REF R2100131410.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ REF R2100131410.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ REF R2100131410.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ REF R2100131410.pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RFQ REF R2100131410.pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	RFQ REF R2100131410.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

description pid process target process

PID 1292 set thread context of 2576 1292 RFQ REF R2100131410.pdf.exe RFQ REF R2100131410.pdf.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

pid process

2576 RFQ REF R2100131410.pdf.exe
2576 RFQ REF R2100131410.pdf.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

pid process

2576 RFQ REF R2100131410.pdf.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

description pid process

Token: SeDebugPrivilege 2576 RFQ REF R2100131410.pdf.exe

description	pid	process	target process
PID 1292 set thread context of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe

pid	process
2576	RFQ REF R2100131410.pdf.exe
2576	RFQ REF R2100131410.pdf.exe

pid	process
2576	RFQ REF R2100131410.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2576	RFQ REF R2100131410.pdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

description	pid	process	target process
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe
PID 1292 wrote to memory of 2576	1292	RFQ REF R2100131410.pdf.exe	RFQ REF R2100131410.pdf.exe

outlook_office_path 1 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ REF R2100131410.pdf.exe

outlook_win_path 1 IoCs

Processes:

RFQ REF R2100131410.pdf.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ REF R2100131410.pdf.exe

C:\Users\Admin\AppData\Local\Temp\RFQ REF R2100131410.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ REF R2100131410.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1292

C:\Users\Admin\AppData\Local\Temp\RFQ REF R2100131410.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ REF R2100131410.pdf.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2576

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1292-22-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-4-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-0-0x0000000000E10000-0x0000000000EB6000-memory.dmp

Filesize
664KB

Download
memory/1292-3-0x00000000005A0000-0x00000000005B8000-memory.dmp

Filesize
96KB

Download
memory/1292-1-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/1292-5-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/1292-6-0x0000000005170000-0x00000000051E4000-memory.dmp

Filesize
464KB

Download
memory/1292-2-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/2576-19-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-7-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-9-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-21-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-24-0x0000000004870000-0x00000000048B0000-memory.dmp

Filesize
256KB

Download
memory/2576-23-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/2576-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2576-26-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/2576-27-0x0000000004870000-0x00000000048B0000-memory.dmp

Filesize
256KB

Download
memory/2576-28-0x0000000004870000-0x00000000048B0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads