agenttesla | 49b6ab1d5d071bdca6b3cfec673a258110848bc5beea2805d6b7e016731a4655

General

Target

Purchase Order.exe
Size

338KB
MD5

392f0e8e6ed60e4e1c35bf1f6be5ec57
SHA1

72aff1f262792ec3e626888583c55549d395dcb7
SHA256

49b6ab1d5d071bdca6b3cfec673a258110848bc5beea2805d6b7e016731a4655
SHA512

a67341f726f1e0df2e1733cf3d4dbcbb6d950922b35df5c2ba1feec343dc668a28b3f9ee0a8eb9089fa3e04811acb868dc34021d38f2b9d1fb2a987d08410532

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1803146213:AAHYyCRx7FggQ9LfPbrIs79ZUWCEc9wNnDo/sendDocument

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2756-116-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral2/memory/2756-117-0x000000000040188B-mapping.dmp	family_agenttesla
behavioral2/memory/2756-118-0x00000000047C0000-0x00000000047F7000-memory.dmp	family_agenttesla
behavioral2/memory/2756-122-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Loads dropped DLL 1 IoCs

Processes:

Purchase Order.exe

pid process

2848 Purchase Order.exe
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

pid	process
2848	Purchase Order.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Order.exe

description pid process target process

PID 2848 set thread context of 2756 2848 Purchase Order.exe Purchase Order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Purchase Order.exe

pid process

2756 Purchase Order.exe
2756 Purchase Order.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Purchase Order.exe

description pid process

Token: SeDebugPrivilege 2756 Purchase Order.exe

description	pid	process	target process
PID 2848 set thread context of 2756	2848	Purchase Order.exe	Purchase Order.exe

pid	process
2756	Purchase Order.exe
2756	Purchase Order.exe

description	pid	process
Token: SeDebugPrivilege	2756	Purchase Order.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Purchase Order.exe

description	pid	process	target process
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe
PID 2848 wrote to memory of 2756	2848	Purchase Order.exe	Purchase Order.exe

outlook_office_path 1 IoCs

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

outlook_win_path 1 IoCs

Processes:

Purchase Order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2848

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2756

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsjDA16.tmp\aiuxmmjtmkz.dll
MD5
586dd640c4a64cdf876ac0bfe48ad870

SHA1
8f9704a440ee2fb56b0bfd2a2f9a5b2a3fa685f0

SHA256
206c1772141cc0ae68d1a3a317c1b4e5b2ece540322c211b6a37d65f100114cd

SHA512
984100b0309b9d2f3cdf783697a497cea4675aee9b2c4529ef20afd6bdf011f1240044bfda2af2f9bb98b98c45b03c6d72e98dda2da8a958d36f3229c9a0dc62

Download Submit
memory/2756-116-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2756-117-0x000000000040188B-mapping.dmp

Download
memory/2756-118-0x00000000047C0000-0x00000000047F7000-memory.dmp

Filesize
220KB

Download
memory/2756-120-0x0000000004990000-0x0000000004991000-memory.dmp

Filesize
4KB

Download
memory/2756-121-0x0000000004E90000-0x0000000004E91000-memory.dmp

Filesize
4KB

Download
memory/2756-123-0x0000000004980000-0x0000000004981000-memory.dmp

Filesize
4KB

Download
memory/2756-124-0x0000000004982000-0x0000000004983000-memory.dmp

Filesize
4KB

Download
memory/2756-122-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2756-125-0x0000000004983000-0x0000000004984000-memory.dmp

Filesize
4KB

Download
memory/2756-126-0x0000000004984000-0x0000000004985000-memory.dmp

Filesize
4KB

Download
memory/2756-127-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/2756-128-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/2756-129-0x0000000005B90000-0x0000000005B91000-memory.dmp

Filesize
4KB

Download
memory/2756-130-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads