agenttesla | f6fc22ec88e5653d35064b62baba0b24d9a66391412f21488053e6df37b87c98

General

Target

Invoice.exe
Size

402KB
MD5

da4e69129661f06319d09a815b0b98d7
SHA1

f6bd5cd6f1e8c8217bb062ab378e53da423c1843
SHA256

f6fc22ec88e5653d35064b62baba0b24d9a66391412f21488053e6df37b87c98
SHA512

76ab018e3236b5533fc13b308d9dfe54b14b5f861b212f9cdbcfa0a4f76ca7ecbd9a3755b4db6c1a06233f7e6726e0f132b9e92fc05b20d2577bdc68c055f4a7

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://asnbanknl.com/
Port:
21
Username:
smartpips
Password:
3mPf4$l2

Protocol: ftp
Host:
ftp://asnbanknl.com/
Port:
21
Username:
smartpips
Password:
3mPf4$l2

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
behavioral1/memory/1844-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1844-5-0x0000000000446A1E-mapping.dmp	family_agenttesla
behavioral1/memory/1844-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1844-7-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice.exe

description pid process target process

PID 1312 set thread context of 1844 1312 Invoice.exe 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

1808 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Invoice.exe

pid process

1844 Invoice.exe
1844 Invoice.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Invoice.exe

description pid process

Token: SeDebugPrivilege 1844 Invoice.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Invoice.exe

pid process

1844 Invoice.exe

description	pid	process	target process
PID 1312 set thread context of 1844	1312	Invoice.exe	Invoice.exe

pid	process
1808	schtasks.exe

pid	process
1844	Invoice.exe
1844	Invoice.exe

description	pid	process
Token: SeDebugPrivilege	1844	Invoice.exe

pid	process
1844	Invoice.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Invoice.exe

description	pid	process	target process
PID 1312 wrote to memory of 1808	1312	Invoice.exe	schtasks.exe
PID 1312 wrote to memory of 1808	1312	Invoice.exe	schtasks.exe
PID 1312 wrote to memory of 1808	1312	Invoice.exe	schtasks.exe
PID 1312 wrote to memory of 1808	1312	Invoice.exe	schtasks.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe
PID 1312 wrote to memory of 1844	1312	Invoice.exe	Invoice.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RnxGjClOcsOYp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp47A9.tmp"
2⤵
- Creates scheduled task(s)
PID:1808

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1844

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp47A9.tmp
MD5
6aa5c4cac9e4bc4dc04a92438b94156c

SHA1
a40dc87a70cc0630988223a1521acdda8a4707df

SHA256
a36b66d5b494bbd306b9a9f5490767d86fb5a368c210d58421554092c3f1d46e

SHA512
45d9ba3e1ac586c6b16cc367042a4e67339c03029c0190b7f566339cba6d5afa552f0ba756103428847f5a9ec0c129eff347e8c419df7a535157badd4f97d29e

Download Submit
memory/1312-1-0x0000000000000000-0x0000000000000000-disk.dmp

Download
memory/1808-2-0x0000000000000000-mapping.dmp

Download
memory/1844-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1844-5-0x0000000000446A1E-mapping.dmp

Download
memory/1844-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1844-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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