agenttesla | b8a0b0d234e61f39fcd34774f35a33f17e6e8f0ee1a1a318758a17d4cfb6dc32

General

Target

tmpz0afr5u4.exe
Size

612KB
MD5

fc981bf5843063b93311c756824ee5eb
SHA1

a06472abc448049b0919fdcc18a6cf4e2f456ddc
SHA256

b8a0b0d234e61f39fcd34774f35a33f17e6e8f0ee1a1a318758a17d4cfb6dc32
SHA512

05c7d3949f47f5443269a61d6e559a4fc99d85791b79e082cd8206247cd721bf8d204cc61967facaa69dc0b0f367a44929b65c310d26355f12a1c34b5a27ce91
SSDEEP

12288:owFWlm+ReVDr10PWC1vUl1zA6pTdaHSHVzMRtlzWLG8Xu:ow4lVMVV0PDMl10goHGYzC+

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.rediffrnail.com
Port:
587
Username:
[email protected]
Password:
%wWJeDZ6
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1380 set thread context of 1408	1380	tmpz0afr5u4.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1928	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	tmpz0afr5u4.exe
Token: SeDebugPrivilege	1928	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 1928	1380	tmpz0afr5u4.exe	28
PID 1380 wrote to memory of 1928	1380	tmpz0afr5u4.exe	28
PID 1380 wrote to memory of 1928	1380	tmpz0afr5u4.exe	28
PID 1380 wrote to memory of 1928	1380	tmpz0afr5u4.exe	28
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30
PID 1380 wrote to memory of 1408	1380	tmpz0afr5u4.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmpz0afr5u4.exe

C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe
"C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1928
- C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe
  "C:\Users\Admin\AppData\Local\Temp\tmpz0afr5u4.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1408

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1380-71-0x0000000004805000-0x0000000004823000-memory.dmp

Filesize
120KB

Download
memory/1380-55-0x0000000004800000-0x0000000004840000-memory.dmp

Filesize
256KB

Download
memory/1380-56-0x0000000000410000-0x0000000000422000-memory.dmp

Filesize
72KB

Download
memory/1380-57-0x0000000004800000-0x0000000004840000-memory.dmp

Filesize
256KB

Download
memory/1380-58-0x0000000000420000-0x000000000042C000-memory.dmp

Filesize
48KB

Download
memory/1380-59-0x0000000005F90000-0x0000000005FFA000-memory.dmp

Filesize
424KB

Download
memory/1380-60-0x0000000004780000-0x00000000047B2000-memory.dmp

Filesize
200KB

Download
memory/1380-54-0x0000000000260000-0x0000000000300000-memory.dmp

Filesize
640KB

Download
memory/1408-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1408-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-70-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-61-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1408-72-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download
memory/1408-95-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download
memory/1928-75-0x0000000001DF0000-0x0000000001E30000-memory.dmp

Filesize
256KB

Download
memory/1928-76-0x0000000001DF0000-0x0000000001E30000-memory.dmp

Filesize
256KB

Download
memory/1928-77-0x0000000001DF0000-0x0000000001E30000-memory.dmp

Filesize
256KB

Download

Analysis

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