agenttesla | ab6dc10bd96deb553f6020091e37aaff85d25a729636a5be616b1bcc5b6fdb1b

General

Target

INVOICES..exe
Size

1.0MB
MD5

8f71df24690c4f0c8f652f19486c808c
SHA1

522068a4258cc4d502e6e6401bbc6dbb0e1eafa7
SHA256

ab6dc10bd96deb553f6020091e37aaff85d25a729636a5be616b1bcc5b6fdb1b
SHA512

623e4129266af806b8d450395c07d5cd0941876eebb2dd3f63cef53a8695991ec8633428f881c0422f52b10ec0d8ea890decabdf624ec6df6a93e4aae148d1f2

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lallyautomobiles.net
Port:
587
Username:
servicekrl@lallyautomobiles.net
Password:
Welcome@2021

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2664-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2664-125-0x000000000043762E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

INVOICES..exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts INVOICES..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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	INVOICES..exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

INVOICES..exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	INVOICES..exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICES..exe

description pid process target process

PID 472 set thread context of 2664 472 INVOICES..exe INVOICES..exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

INVOICES..exe

pid process

2664 INVOICES..exe
2664 INVOICES..exe
2664 INVOICES..exe
2664 INVOICES..exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

INVOICES..exe

description pid process

Token: SeDebugPrivilege 2664 INVOICES..exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

INVOICES..exe

pid process

2664 INVOICES..exe

description	pid	process	target process
PID 472 set thread context of 2664	472	INVOICES..exe	INVOICES..exe

pid	process
2664	INVOICES..exe
2664	INVOICES..exe
2664	INVOICES..exe
2664	INVOICES..exe

description	pid	process
Token: SeDebugPrivilege	2664	INVOICES..exe

pid	process
2664	INVOICES..exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

INVOICES..exe

description	pid	process	target process
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe
PID 472 wrote to memory of 2664	472	INVOICES..exe	INVOICES..exe

C:\Users\Admin\AppData\Local\Temp\INVOICES..exe
"C:\Users\Admin\AppData\Local\Temp\INVOICES..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:472

C:\Users\Admin\AppData\Local\Temp\INVOICES..exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2664

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\INVOICES..exe.log
MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
memory/472-121-0x0000000008590000-0x0000000008591000-memory.dmp

Filesize
4KB

Download
memory/472-123-0x000000000AEF0000-0x000000000AF7E000-memory.dmp

Filesize
568KB

Download
memory/472-118-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/472-119-0x0000000004F50000-0x000000000544E000-memory.dmp

Filesize
5.0MB

Download
memory/472-120-0x0000000005240000-0x000000000524E000-memory.dmp

Filesize
56KB

Download
memory/472-114-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/472-122-0x0000000008730000-0x00000000087F6000-memory.dmp

Filesize
792KB

Download
memory/472-117-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

Filesize
4KB

Download
memory/472-116-0x0000000005450000-0x0000000005451000-memory.dmp

Filesize
4KB

Download
memory/2664-125-0x000000000043762E-mapping.dmp

Download
memory/2664-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2664-131-0x0000000004F80000-0x0000000004F81000-memory.dmp

Filesize
4KB

Download
memory/2664-132-0x0000000005B50000-0x0000000005B51000-memory.dmp

Filesize
4KB

Download
memory/2664-133-0x0000000005BF0000-0x0000000005BF1000-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