agenttesla | 97f312417f59be41485a5bd02192e7aca4a501d48fdfd4bd69394b8cbc63095c

General

Target

RFQ-2251.exe
Size

467KB
MD5

a8426b5bad6bc128155701a777d03900
SHA1

c6257f2c917ccd2a45bb81440114ff63292eff91
SHA256

4bebecd4e0286af21b88e3b1d71b34f9567e8c21e99bb0145ad718a0d7353b11
SHA512

24b41a75180b4f1cf8a49d47c74a4e13b772ca15d27e3b4d1a5e83b8b8b8f29f0203f8c26c813725cb78d76c8db0cf0c80e8623217646f98c58a027c00ae6224

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.itdone.cz
Port:
587
Username:
[email protected]
Password:
viObavejMa

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.itdone.cz
Port:
587
Username:
[email protected]
Password:
viObavejMa

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2112-137-0x0000000000400000-0x000000000044A000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ-2251.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	RFQ-2251.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RFQ-2251.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-2251.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-2251.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-2251.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ-2251.exe

description pid process target process

PID 3624 set thread context of 2112 3624 RFQ-2251.exe RFQ-2251.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2632 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RFQ-2251.exe

pid process

2112 RFQ-2251.exe
2112 RFQ-2251.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RFQ-2251.exe

description pid process

Token: SeDebugPrivilege 2112 RFQ-2251.exe

description	pid	process	target process
PID 3624 set thread context of 2112	3624	RFQ-2251.exe	RFQ-2251.exe

pid	process
2632	schtasks.exe

pid	process
2112	RFQ-2251.exe
2112	RFQ-2251.exe

description	pid	process
Token: SeDebugPrivilege	2112	RFQ-2251.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

RFQ-2251.exe

description	pid	process	target process
PID 3624 wrote to memory of 2632	3624	RFQ-2251.exe	schtasks.exe
PID 3624 wrote to memory of 2632	3624	RFQ-2251.exe	schtasks.exe
PID 3624 wrote to memory of 2632	3624	RFQ-2251.exe	schtasks.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe
PID 3624 wrote to memory of 2112	3624	RFQ-2251.exe	RFQ-2251.exe

outlook_office_path 1 IoCs

Processes:

RFQ-2251.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-2251.exe

outlook_win_path 1 IoCs

Processes:

RFQ-2251.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RFQ-2251.exe

C:\Users\Admin\AppData\Local\Temp\RFQ-2251.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ-2251.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3624

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TjcWKQrdfU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA73C.tmp"
2⤵
- Creates scheduled task(s)
PID:2632

C:\Users\Admin\AppData\Local\Temp\RFQ-2251.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RFQ-2251.exe.log

Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA73C.tmp

Filesize
1KB

MD5
9faaa9a47e47592e9ebc196acc38e820

SHA1
c598741704f0906ddd737cfa93a3d4bbfdb27d9f

SHA256
bf9f9bb7986c6bd47f91e97d8c130b127a2f5e48c04eb2903756eafea73f1fa6

SHA512
11af2851e263c66c795f03b7d0b747e5de40bd6da0757c8aaf47a408729256e4ce34a42cae9657d5e9ec1bc0aab39bd4b575bc973ed0327bf892e90d25b1b89d

Download Submit
memory/2112-136-0x0000000000000000-mapping.dmp

Download
memory/2112-137-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2112-139-0x0000000006340000-0x00000000063A6000-memory.dmp

Filesize
408KB

Download
memory/2112-140-0x00000000069A0000-0x00000000069F0000-memory.dmp

Filesize
320KB

Download
memory/2112-141-0x0000000006DF0000-0x0000000006DFA000-memory.dmp

Filesize
40KB

Download
memory/2632-134-0x0000000000000000-mapping.dmp

Download
memory/3624-130-0x00000000003E0000-0x000000000045C000-memory.dmp

Filesize
496KB

Download
memory/3624-131-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/3624-132-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/3624-133-0x0000000004F40000-0x0000000004FDC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads