agenttesla | 9ffff542424c27e44cd1c0ae15166fbd66f2802dd41728b55ebbf0f812d10952

General

Target
PO 14086 & 14117.exe
Size 780KB
Sample211114-sb77taged8
SHA256 9ffff542424c27e44cd1c0ae15166fbd66f2802dd41728b55ebbf0f812d10952
MD5 86d9fb8b0b052b90f0826295f8a63f0a
SHA1 c955801e897cb35954e167fb056e0beb612844b6
SHA512 f00b2c982b385a847365f8b4d2da8da8f94fe2cce5650c00abf2d86367f23ab4cbb6cc643da2f7bb86a66844eddb90e4ddb7a279cf2a5d0e4543ae99838d1f5d
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
suzanaynadex

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/240-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/240-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/240-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/240-66-0x000000000043756E-mapping.dmp	family_agenttesla
behavioral1/memory/240-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 14086 & 14117.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 14086 & 14117.exe
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 14086 & 14117.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	PO 14086 & 14117.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 240	1112	PO 14086 & 14117.exe	31

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1112	PO 14086 & 14117.exe
1112	PO 14086 & 14117.exe
1112	PO 14086 & 14117.exe
240	PO 14086 & 14117.exe
240	PO 14086 & 14117.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
240	PO 14086 & 14117.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1112	PO 14086 & 14117.exe
Token: SeDebugPrivilege	240	PO 14086 & 14117.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 1812	1112	PO 14086 & 14117.exe	28
PID 1112 wrote to memory of 1812	1112	PO 14086 & 14117.exe	28
PID 1112 wrote to memory of 1812	1112	PO 14086 & 14117.exe	28
PID 1112 wrote to memory of 1812	1112	PO 14086 & 14117.exe	28
PID 1112 wrote to memory of 1040	1112	PO 14086 & 14117.exe	29
PID 1112 wrote to memory of 1040	1112	PO 14086 & 14117.exe	29
PID 1112 wrote to memory of 1040	1112	PO 14086 & 14117.exe	29
PID 1112 wrote to memory of 1040	1112	PO 14086 & 14117.exe	29
PID 1112 wrote to memory of 620	1112	PO 14086 & 14117.exe	30
PID 1112 wrote to memory of 620	1112	PO 14086 & 14117.exe	30
PID 1112 wrote to memory of 620	1112	PO 14086 & 14117.exe	30
PID 1112 wrote to memory of 620	1112	PO 14086 & 14117.exe	30
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31
PID 1112 wrote to memory of 240	1112	PO 14086 & 14117.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 14086 & 14117.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO 14086 & 14117.exe

C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe
"C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"
  2⤵
  PID:1812
- C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"
  2⤵
  PID:1040
- C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe"
  2⤵
  PID:620
- C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 14086 & 14117.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:240

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

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/240-63-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/240-70-0x0000000004A51000-0x0000000004A52000-memory.dmp

Download

memory/240-64-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/240-67-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/240-61-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/240-65-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/240-69-0x0000000004A50000-0x0000000004A51000-memory.dmp

Download

memory/240-62-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/1112-55-0x0000000000010000-0x0000000000011000-memory.dmp

Download

memory/1112-57-0x0000000075801000-0x0000000075803000-memory.dmp

Download

memory/1112-60-0x0000000004940000-0x0000000004993000-memory.dmp

Download

memory/1112-59-0x0000000001DF0000-0x0000000001DF5000-memory.dmp

Download

memory/1112-58-0x0000000004E30000-0x0000000004E31000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads