agenttesla | 4b5305fa25809bc68b5acb4cf1cbf84f11fcece004c0a9487a17958629a89e7e

General

Target

Quotation list 202006070089_doc.exe
Size

438KB
MD5

51484024d193248a18ea77fba933144e
SHA1

cd47b6136ccb2a4905cda151ce4ae88b3d0648a9
SHA256

8aad38614627972f2d27adc9e0a998ba52c55700c37e70da79f9240ed8b3605d
SHA512

bd7ec7520fda27af1ec644678eebdd1c2a7eb6be24bf11c4a2f6ae5914076e4ea78f0ed37f85ffb4dca2ca4602e7c7757f7410c6bb653416fd5512f1de4b6bd1

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.anding-tw.com
Port:
587
Username:
[email protected]
Password:
7#Sjsj*ebT+2

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1228-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-64-0x00000000004479FE-mapping.dmp	family_agenttesla
behavioral1/memory/1228-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1228-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1580-57-0x00000000046D0000-0x0000000004724000-memory.dmp	rezer0

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

Processes:

Quotation list 202006070089_doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation list 202006070089_doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation list 202006070089_doc.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation list 202006070089_doc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Quotation list 202006070089_doc.exe

description pid process target process

PID 1580 set thread context of 1228 1580 Quotation list 202006070089_doc.exe Quotation list 202006070089_doc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Quotation list 202006070089_doc.exe

pid process

1228 Quotation list 202006070089_doc.exe
1228 Quotation list 202006070089_doc.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Quotation list 202006070089_doc.exe

description pid process

Token: SeDebugPrivilege 1228 Quotation list 202006070089_doc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Quotation list 202006070089_doc.exe

pid process

1228 Quotation list 202006070089_doc.exe

description	pid	process	target process
PID 1580 set thread context of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe

pid	process
1228	Quotation list 202006070089_doc.exe
1228	Quotation list 202006070089_doc.exe

description	pid	process
Token: SeDebugPrivilege	1228	Quotation list 202006070089_doc.exe

pid	process
1228	Quotation list 202006070089_doc.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

Quotation list 202006070089_doc.exe

description	pid	process	target process
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe
PID 1580 wrote to memory of 1228	1580	Quotation list 202006070089_doc.exe	Quotation list 202006070089_doc.exe

outlook_office_path 1 IoCs

Processes:

Quotation list 202006070089_doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation list 202006070089_doc.exe

outlook_win_path 1 IoCs

Processes:

Quotation list 202006070089_doc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quotation list 202006070089_doc.exe

C:\Users\Admin\AppData\Local\Temp\Quotation list 202006070089_doc.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation list 202006070089_doc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1580

C:\Users\Admin\AppData\Local\Temp\Quotation list 202006070089_doc.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:1228

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1228-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-64-0x00000000004479FE-mapping.dmp

Download
memory/1228-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1228-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1580-54-0x0000000000B60000-0x0000000000BD4000-memory.dmp

Filesize
464KB

Download
memory/1580-55-0x0000000076811000-0x0000000076813000-memory.dmp

Filesize
8KB

Download
memory/1580-56-0x0000000000550000-0x0000000000558000-memory.dmp

Filesize
32KB

Download
memory/1580-57-0x00000000046D0000-0x0000000004724000-memory.dmp

Filesize
336KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads