agenttesla | b5b759622f890647a48720d6c8e1e3dc3a9d0d829218e594b760668eaed473f5

Analysis

max time kernel
25s
max time network
133s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
12-03-2023 01:12

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General

Target

RFQ-05434567898654345.exe
Size

838KB
MD5

3b4eea8c0ff330106c37b55bc3ffb85b
SHA1

dbebee4560b1ddca4eff35f0a52f5aae543a813b
SHA256

aa5336fbd1f094aabf356588943e259fdb8330a19e9e957bf8bbcac9d3ae7401
SHA512

dc025f9000631f12d66d37e5e1b28e3eb8bb0a1c8d4bf35f4b742e46b344974257bf2b13872fb19e26922af1b6d9d252665e66dcf9bd33529b90f52cf0a18479
SSDEEP

12288:hyvpWnX9zt58IXAExxphTTYLGJ/xdVzsEF0i6CPB+VxdfRmvxjHYKM6UGtpSsY/x:hrNRfJxgxsxE8N8zP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.sienkakupeste.com
Port:
587
Username:
[email protected]
Password:
010203sienka++
Email To:
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.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
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 1928	1972	RFQ-05434567898654345.exe	27

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27
PID 1972 wrote to memory of 1928	1972	RFQ-05434567898654345.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-05434567898654345.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-05434567898654345.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1928-60-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-57-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-58-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-59-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-61-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1928-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-66-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1928-67-0x0000000004300000-0x0000000004340000-memory.dmp

Filesize
256KB

Download
memory/1928-85-0x0000000004300000-0x0000000004340000-memory.dmp

Filesize
256KB

Download
memory/1972-55-0x0000000000520000-0x0000000000532000-memory.dmp

Filesize
72KB

Download
memory/1972-56-0x0000000000540000-0x0000000000548000-memory.dmp

Filesize
32KB

Download
memory/1972-54-0x0000000000AE0000-0x0000000000BB8000-memory.dmp

Filesize
864KB

Download