agenttesla | 3226b44835eae78f666155d3ee6a4af642015fc1a0bc61aa32bdec0bb0ed4481

Analysis

max time kernel
4294185s
max time network
120s
platform
windows7_x64
resource
win7-20220223-en
submitted
01/03/2022, 19:17

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General

Target
Items required.exe
Size 817KB
Sample220301-xzc4ssbcd2
SHA256 3226b44835eae78f666155d3ee6a4af642015fc1a0bc61aa32bdec0bb0ed4481
MD5 30e47f6a1cc237c78eecab3ec106fdb3
SHA1 15eaf28cfe114faa408ec3029639d67ce4b7c584
SHA512 3cc189c59dfc930d67f935da6a371bcf1e6914339138f9b360a5fdb02043ac20cbe5c4f1b1e63b0e22fdf188ede185dcccb594b62a7aefa4aeebc8c95a3f59f6
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

https://api.telegram.org/bot5056459562:AAHQW9wJvHEkQsnxuML0xV3IDA6-DUuUNFI/sendDocument

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/708-62-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/708-63-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/708-64-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/708-65-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Items required.exe

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-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Items required.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Items required.exe
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Items required.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1792 set thread context of 708	1792	Items required.exe	27

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
708	Items required.exe
708	Items required.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	708	Items required.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27
PID 1792 wrote to memory of 708	1792	Items required.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Items required.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1405931862-909307831-4085185274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Items required.exe

C:\Users\Admin\AppData\Local\Temp\Items required.exe
"C:\Users\Admin\AppData\Local\Temp\Items required.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\Items required.exe
  "C:\Users\Admin\AppData\Local\Temp\Items required.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/708-63-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-64-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-66-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

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memory/708-61-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-65-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-60-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-62-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/708-67-0x0000000004D50000-0x0000000004D51000-memory.dmp

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memory/1792-55-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

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memory/1792-54-0x00000000008A0000-0x0000000000972000-memory.dmp

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memory/1792-59-0x0000000001F10000-0x0000000001F4C000-memory.dmp

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memory/1792-58-0x0000000007E80000-0x0000000007F3C000-memory.dmp

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memory/1792-57-0x00000000002D0000-0x00000000002E0000-memory.dmp

Download

memory/1792-56-0x0000000001F50000-0x0000000001F51000-memory.dmp

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