agenttesla | 87ca3582edac50a44437f9d050df3d61fdf541599ab1d37c6fb9e9984dd1e417

General

Target

Material Request-MR_2023.pdf.exe
Size

840KB
MD5

2d9978e3904a9c5613f3863a3c210a9f
SHA1

c30cf32461d2b06f4a5fe4059e440aaded3de643
SHA256

87ca3582edac50a44437f9d050df3d61fdf541599ab1d37c6fb9e9984dd1e417
SHA512

3bfabfa10eb5b82318ed7b21e5af587acfa5379cc055c920e7e77106c80211dd985371af733f6a2188fda999e70dfb474f4df36016f658e1b501b61d3693bfaf
SSDEEP

24576:XeIagddY8iT0WMrUwBosVHREbJ76Jr8zw6R7c4N34:X+6dYzYWflsVH69Mr8z

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2124462934:AAGr-L06waDdFGpnKJz3_DCOFcJpWDQ7WIM/sendDocument

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3576-139-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Material Request-MR_2023.pdf.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-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Material Request-MR_2023.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Material Request-MR_2023.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Material Request-MR_2023.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4824 set thread context of 3576	4824	Material Request-MR_2023.pdf.exe	90

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4824	Material Request-MR_2023.pdf.exe
4824	Material Request-MR_2023.pdf.exe
3576	Material Request-MR_2023.pdf.exe
3576	Material Request-MR_2023.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4824	Material Request-MR_2023.pdf.exe
Token: SeDebugPrivilege	3576	Material Request-MR_2023.pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3576	Material Request-MR_2023.pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 2948	4824	Material Request-MR_2023.pdf.exe	89
PID 4824 wrote to memory of 2948	4824	Material Request-MR_2023.pdf.exe	89
PID 4824 wrote to memory of 2948	4824	Material Request-MR_2023.pdf.exe	89
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90
PID 4824 wrote to memory of 3576	4824	Material Request-MR_2023.pdf.exe	90

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Material Request-MR_2023.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Material Request-MR_2023.pdf.exe

C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe"
  2⤵
  PID:2948
- C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Material Request-MR_2023.pdf.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Material Request-MR_2023.pdf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3576-139-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3576-141-0x0000000006230000-0x0000000006296000-memory.dmp

Filesize
408KB

Download
memory/3576-142-0x0000000006470000-0x00000000064C0000-memory.dmp

Filesize
320KB

Download
memory/4824-132-0x0000000000A10000-0x0000000000AE6000-memory.dmp

Filesize
856KB

Download
memory/4824-133-0x0000000005990000-0x0000000005F34000-memory.dmp

Filesize
5.6MB

Download
memory/4824-134-0x0000000005490000-0x0000000005522000-memory.dmp

Filesize
584KB

Download
memory/4824-135-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/4824-136-0x0000000008EB0000-0x0000000008F4C000-memory.dmp

Filesize
624KB

Download

Analysis

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