agenttesla | ca4e8df916bd6585f7f2ca0fd326f06ee145895d01a829805a7ae1408473c9c0

General

Target

TAX INVOICE.exe
Size

803KB
MD5

6401706cc7de542faa0c49444d2d4213
SHA1

cab13cb770d1b3daeb005b2b3944abe89113a4a2
SHA256

ca4e8df916bd6585f7f2ca0fd326f06ee145895d01a829805a7ae1408473c9c0
SHA512

934748729d87a38ab9474fe9bf4288923d136df07443d9b1e37513588f6c2b3e5d3596b4882e44096eefa38b6f3e3bfebed388b3a7f15cae3ee085df0c56f881
SSDEEP

12288:IxbI2iNQ2qoCGouu5bF7jv1AKz6nwbNGoRqsHADqjJ5nU:L1n9Muu/v1Mnj6xjrU

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.sseximclearing.com
Port:
587
Username:
[email protected]
Password:
Ssxm@9854

Signatures

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

TAX INVOICE.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	TAX INVOICE.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:

TAX INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TAX INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TAX INVOICE.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TAX INVOICE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

TAX INVOICE.exe

description pid process target process

PID 960 set thread context of 4116 960 TAX INVOICE.exe TAX INVOICE.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

3484 schtasks.exe

description	pid	process	target process
PID 960 set thread context of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe

pid	process
3484	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

TAX INVOICE.exeTAX INVOICE.exe

pid	process
960	TAX INVOICE.exe
960	TAX INVOICE.exe
960	TAX INVOICE.exe
960	TAX INVOICE.exe
960	TAX INVOICE.exe
960	TAX INVOICE.exe
960	TAX INVOICE.exe
4116	TAX INVOICE.exe
4116	TAX INVOICE.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

TAX INVOICE.exeTAX INVOICE.exe

description pid process

Token: SeDebugPrivilege 960 TAX INVOICE.exe
Token: SeDebugPrivilege 4116 TAX INVOICE.exe

description	pid	process
Token: SeDebugPrivilege	960	TAX INVOICE.exe
Token: SeDebugPrivilege	4116	TAX INVOICE.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

TAX INVOICE.exe

description	pid	process	target process
PID 960 wrote to memory of 3484	960	TAX INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 3484	960	TAX INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 3484	960	TAX INVOICE.exe	schtasks.exe
PID 960 wrote to memory of 2152	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 2152	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 2152	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 772	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 772	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 772	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 816	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 816	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 816	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe
PID 960 wrote to memory of 4116	960	TAX INVOICE.exe	TAX INVOICE.exe

outlook_office_path 1 IoCs

Processes:

TAX INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TAX INVOICE.exe

outlook_win_path 1 IoCs

Processes:

TAX INVOICE.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	TAX INVOICE.exe

C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rQjZzWgeZIPbo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF263.tmp"
2⤵
- Creates scheduled task(s)
PID:3484

C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe
"{path}"
2⤵
PID:2152

C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe
"{path}"
2⤵
PID:772

C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe
"{path}"
2⤵
PID:816

C:\Users\Admin\AppData\Local\Temp\TAX INVOICE.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4116

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\Temp\tmpF263.tmp

Filesize
1KB

MD5
8f04c198de62de6ef25695e2934839f0

SHA1
a537f815a30fc9a1de7abdc4784ab0628d18c2c3

SHA256
515004c1a0c309251ea76e851cafbacf24371b825de84ebbc9887edc7062f5f5

SHA512
87208c7629210c0374ca7d7ab65fd67d4ecdc0bbcbeee8be5acae7e5eaf21f75bc49cc5e90689db5d154954acb5a638b85611bd82b8824c9af68ae8690fd0c41

Download Submit
memory/772-140-0x0000000000000000-mapping.dmp

Download
memory/816-141-0x0000000000000000-mapping.dmp

Download
memory/960-135-0x0000000005090000-0x000000000512C000-memory.dmp

Filesize
624KB

Download
memory/960-136-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/960-134-0x0000000004FF0000-0x0000000005082000-memory.dmp

Filesize
584KB

Download
memory/960-133-0x0000000005500000-0x0000000005AA4000-memory.dmp

Filesize
5.6MB

Download
memory/960-132-0x0000000000560000-0x000000000062E000-memory.dmp

Filesize
824KB

Download
memory/2152-139-0x0000000000000000-mapping.dmp

Download
memory/3484-137-0x0000000000000000-mapping.dmp

Download
memory/4116-142-0x0000000000000000-mapping.dmp

Download
memory/4116-143-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4116-144-0x0000000006070000-0x00000000060D6000-memory.dmp

Filesize
408KB

Download
memory/4116-145-0x00000000067A0000-0x00000000067F0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads