agenttesla | a7ec6dfb09d3866bdfe3a1306182ad995f309029828f9e1de99bb7f658cacb64

Analysis

max time kernel
126s
max time network
114s
platform
windows10_x64
resource
win10v200722
submitted
19/08/2020, 11:16

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General

Target
PO 8182020.exe
Size 599KB
Sample200819-nhmt4lpg52
SHA256 a7ec6dfb09d3866bdfe3a1306182ad995f309029828f9e1de99bb7f658cacb64
MD5 b849d8ec23b3506509c4c63c077ab8a8
SHA1 0436b3d25af29538b6fabc659402e3bdfd5296ed
SHA512 da56ea8b15e50587a30a1c5823df5f335ddd9b87e8507bbeecb80005865dfffdcef3cdf8fe8c02477df660fb8ff82b05e34844384299cebe67b349bb31660c88
MD5 SHA1 SHA512

Score

10^/10

keylogger stealer spyware trojan agenttesla persistence

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.rgs-eg.com
Port
587
Username
[email protected]
Password
oshasaad2020

Signatures

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

AgentTesla Payload 3 IoCs

keylogger stealer

resource	yara_rule
behavioral2/memory/1788-13-0x0000000000400000-0x000000000045A000-memory.dmp	agent_tesla
behavioral2/memory/1788-13-0x0000000000400000-0x000000000045A000-memory.dmp	agent_tesla
behavioral2/memory/1788-14-0x000000000045504E-mapping.dmp	agent_tesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

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-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\JcoGam = "C:\\Users\\Admin\\AppData\\Roaming\\JcoGam\\JcoGam.exe"	PO 8182020.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3888 set thread context of 1788	3888	PO 8182020.exe	74

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1488	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1788	PO 8182020.exe
1788	PO 8182020.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	PO 8182020.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 1488	3888	PO 8182020.exe	72
PID 3888 wrote to memory of 1488	3888	PO 8182020.exe	72
PID 3888 wrote to memory of 1488	3888	PO 8182020.exe	72
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74
PID 3888 wrote to memory of 1788	3888	PO 8182020.exe	74

C:\Users\Admin\AppData\Local\Temp\PO 8182020.exe
"C:\Users\Admin\AppData\Local\Temp\PO 8182020.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iWYFZk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1AF0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1488
- C:\Users\Admin\AppData\Local\Temp\PO 8182020.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 8182020.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1788-22-0x0000000005D30000-0x0000000005D31000-memory.dmp

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memory/1788-21-0x0000000005230000-0x0000000005231000-memory.dmp

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memory/1788-16-0x0000000074000000-0x00000000746EE000-memory.dmp

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memory/1788-13-0x0000000000400000-0x000000000045A000-memory.dmp

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memory/3888-5-0x0000000005050000-0x0000000005051000-memory.dmp

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memory/3888-10-0x0000000000BD0000-0x0000000000C35000-memory.dmp

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memory/3888-9-0x0000000005DB0000-0x0000000005E38000-memory.dmp

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memory/3888-8-0x0000000005000000-0x0000000005003000-memory.dmp

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memory/3888-7-0x0000000005250000-0x0000000005251000-memory.dmp

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memory/3888-6-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

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memory/3888-0-0x0000000074000000-0x00000000746EE000-memory.dmp

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memory/3888-4-0x0000000005690000-0x0000000005691000-memory.dmp

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memory/3888-3-0x0000000002970000-0x0000000002971000-memory.dmp

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memory/3888-1-0x0000000000670000-0x0000000000671000-memory.dmp

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