agenttesla | 752e3bf8736d97adb3c892f1b4b75175788a005ef1a63e248b1d083af0bcfa16

General

Target

Offer#129733.exe
Size

500KB
MD5

66025ac6fd60f45bbeac781a6dd87b0d
SHA1

c18b50db3c100d0adbc7a60530e515eb35483389
SHA256

788c228ea56724227e6eb18a04d36fa4eda9dcfd5a90f1131a54f01ce7445a48
SHA512

14aacfd10e247eca000671364a37de573ec9dc98cd18758a7809a0adb0a9d96df1ebb2d5fd54695cd48fcaed9388eff33a8a50c539cc0576baf734a0a96e6b53
SSDEEP

12288:EW9ABfUnsuZbSSPcLRy70P5+7xsQRTK05+UL/QT3Z7i:EW9uUfZ/cLRy70PU7xsQRK05o7l

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.strictfacilityservices.com
Port:
587
Username:
[email protected]
Password:
SFS!@#321
Email To:
[email protected]

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

Processes:

Offer#129733.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Offer#129733.exe
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Offer#129733.exe
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Offer#129733.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.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Offer#129733.exe

description pid process target process

PID 1672 set thread context of 1788 1672 Offer#129733.exe Offer#129733.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

1192 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Offer#129733.exeOffer#129733.exe

pid process

1672 Offer#129733.exe
1672 Offer#129733.exe
1788 Offer#129733.exe
1788 Offer#129733.exe
1788 Offer#129733.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Offer#129733.exeOffer#129733.exe

description pid process

Token: SeDebugPrivilege 1672 Offer#129733.exe
Token: SeDebugPrivilege 1788 Offer#129733.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Offer#129733.exe

pid process

1788 Offer#129733.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org

description	pid	process	target process
PID 1672 set thread context of 1788	1672	Offer#129733.exe	Offer#129733.exe

pid	process
1192	schtasks.exe

pid	process
1672	Offer#129733.exe
1672	Offer#129733.exe
1788	Offer#129733.exe
1788	Offer#129733.exe
1788	Offer#129733.exe

description	pid	process
Token: SeDebugPrivilege	1672	Offer#129733.exe
Token: SeDebugPrivilege	1788	Offer#129733.exe

pid	process
1788	Offer#129733.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Offer#129733.exe

description	pid	process	target process
PID 1672 wrote to memory of 1192	1672	Offer#129733.exe	schtasks.exe
PID 1672 wrote to memory of 1192	1672	Offer#129733.exe	schtasks.exe
PID 1672 wrote to memory of 1192	1672	Offer#129733.exe	schtasks.exe
PID 1672 wrote to memory of 1192	1672	Offer#129733.exe	schtasks.exe
PID 1672 wrote to memory of 960	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 960	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 960	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 960	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe
PID 1672 wrote to memory of 1788	1672	Offer#129733.exe	Offer#129733.exe

outlook_office_path 1 IoCs

Processes:

Offer#129733.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Offer#129733.exe

outlook_win_path 1 IoCs

Processes:

Offer#129733.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Offer#129733.exe

C:\Users\Admin\AppData\Local\Temp\Offer#129733.exe
"C:\Users\Admin\AppData\Local\Temp\Offer#129733.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iZHaPFhbQYqK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAE3.tmp"
2⤵
- Creates scheduled task(s)
PID:1192

C:\Users\Admin\AppData\Local\Temp\Offer#129733.exe
"{path}"
2⤵
PID:960

C:\Users\Admin\AppData\Local\Temp\Offer#129733.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:1788

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

System Information Discovery

1

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\Temp\tmpFAE3.tmp

Filesize
1KB

MD5
fe491c65616c8914c56976c8e13e2904

SHA1
89958cabaf5b614c9f3c764dc9973806d398cbf4

SHA256
5ec5db05b838c6377142706ba937e2cd9170fde695b1f042aac5182bd27209d9

SHA512
73c888992c5bebd65bd72018291fba6d749050c8d01a6938e2abafe41ebfa96c08ccde7888fec26b74c6fb8780f53f412a50037596eae23201595073810f8dee

Download Submit
memory/1192-59-0x0000000000000000-mapping.dmp

Download
memory/1672-57-0x0000000004DF0000-0x0000000004E6A000-memory.dmp

Filesize
488KB

Download
memory/1672-54-0x00000000001C0000-0x0000000000244000-memory.dmp

Filesize
528KB

Download
memory/1672-58-0x00000000006A0000-0x00000000006DC000-memory.dmp

Filesize
240KB

Download
memory/1672-56-0x0000000000430000-0x0000000000442000-memory.dmp

Filesize
72KB

Download
memory/1672-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1788-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-62-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-67-0x0000000000437B9E-mapping.dmp

Download
memory/1788-69-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1788-71-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads