agenttesla | 572cff30e2206bea4616dfe3ff3dcf490728492fd22f5b52a2caf54d8dfef82b

General

Target

dhl-1465666436....pdf.exe
Size

827KB
MD5

c1c91e8643a6d65d7a228ae95262737b
SHA1

5373d071c4efbc92bb844bf2a50983fa46620092
SHA256

572cff30e2206bea4616dfe3ff3dcf490728492fd22f5b52a2caf54d8dfef82b
SHA512

3fe77b5046c878c66b331a1e646a12c3a06c6972a67da278a7c3e89356d904acc010af93462b310f923e01bbf3270a6d8d44a679e0757ebb16ebe3e79c78e006
SSDEEP

12288:O0CS9eM71FJkICyqrY9RrgdIq5MIp5jW5zG36epb+1l/:oQ1zkdK6LppW5s6m

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://carbonwatt.com
Port:
21
Username:
[email protected]
Password:
k)G8;,rq1MNz

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

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 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	dhl-1465666436....pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dhl-1465666436....pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	dhl-1465666436....pdf.exe

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-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\PDeLIuR = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PDeLIuR\\PDeLIuR.exe"	dhl-1465666436....pdf.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 1368 set thread context of 1716	1368	dhl-1465666436....pdf.exe	27

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1368	dhl-1465666436....pdf.exe
1368	dhl-1465666436....pdf.exe
1716	dhl-1465666436....pdf.exe
1716	dhl-1465666436....pdf.exe
1716	dhl-1465666436....pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	dhl-1465666436....pdf.exe
Token: SeDebugPrivilege	1716	dhl-1465666436....pdf.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27
PID 1368 wrote to memory of 1716	1368	dhl-1465666436....pdf.exe	27

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	dhl-1465666436....pdf.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	dhl-1465666436....pdf.exe

C:\Users\Admin\AppData\Local\Temp\dhl-1465666436....pdf.exe
"C:\Users\Admin\AppData\Local\Temp\dhl-1465666436....pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\dhl-1465666436....pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dhl-1465666436....pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1368-54-0x0000000000140000-0x0000000000216000-memory.dmp

Filesize
856KB

Download
memory/1368-55-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1368-56-0x00000000005D0000-0x00000000005EE000-memory.dmp

Filesize
120KB

Download
memory/1368-57-0x0000000004FE0000-0x0000000005020000-memory.dmp

Filesize
256KB

Download
memory/1368-58-0x00000000006C0000-0x00000000006CC000-memory.dmp

Filesize
48KB

Download
memory/1368-59-0x0000000005790000-0x0000000005846000-memory.dmp

Filesize
728KB

Download
memory/1368-60-0x00000000020E0000-0x0000000002120000-memory.dmp

Filesize
256KB

Download
memory/1716-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-63-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1716-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1716-71-0x00000000005B0000-0x00000000005F0000-memory.dmp

Filesize
256KB

Download
memory/1716-72-0x00000000005B0000-0x00000000005F0000-memory.dmp

Filesize
256KB

Download
memory/1716-91-0x00000000005B0000-0x00000000005F0000-memory.dmp

Filesize
256KB

Download
memory/1716-92-0x00000000005B0000-0x00000000005F0000-memory.dmp

Filesize
256KB

Download

Analysis

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