agenttesla | 95adb79ec9bd9c77bba228ecee761419cd852a3aa302a7cd7bec0834952666a3

General

Target

overdue invoice PDF.exe
Size

820KB
MD5

e1ecea0bc4b06e4ed65e1e61004ec221
SHA1

b48b8b03198c6b5c04da12afa1fa755f70a7b574
SHA256

95adb79ec9bd9c77bba228ecee761419cd852a3aa302a7cd7bec0834952666a3
SHA512

6b7e7b499c7860abb5af191a9f4ee69c6a8a72a11d508453ad70520128a5a0ebf81eb82667969e061bb4caf81c0f8077149b28d47387a1cb1d5554257db927d8

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vibranthonda.co
Port:
587
Username:
parts@vibranthonda.co
Password:
RADHE@123

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1568-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1568-129-0x00000000004376DE-mapping.dmp	family_agenttesla
behavioral2/memory/1568-135-0x0000000005640000-0x0000000005B3E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

overdue invoice PDF.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts overdue invoice PDF.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	overdue invoice PDF.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

overdue invoice PDF.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

overdue invoice PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	overdue invoice PDF.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

overdue invoice PDF.exe

description pid process target process

PID 2224 set thread context of 1568 2224 overdue invoice PDF.exe overdue invoice PDF.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

3936 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

overdue invoice PDF.exe

pid process

1568 overdue invoice PDF.exe
1568 overdue invoice PDF.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

overdue invoice PDF.exe

description pid process

Token: SeDebugPrivilege 1568 overdue invoice PDF.exe

description	pid	process	target process
PID 2224 set thread context of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe

pid	process
3936	schtasks.exe

pid	process
1568	overdue invoice PDF.exe
1568	overdue invoice PDF.exe

description	pid	process
Token: SeDebugPrivilege	1568	overdue invoice PDF.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

overdue invoice PDF.exe

description	pid	process	target process
PID 2224 wrote to memory of 3936	2224	overdue invoice PDF.exe	schtasks.exe
PID 2224 wrote to memory of 3936	2224	overdue invoice PDF.exe	schtasks.exe
PID 2224 wrote to memory of 3936	2224	overdue invoice PDF.exe	schtasks.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 2224 wrote to memory of 1568	2224	overdue invoice PDF.exe	overdue invoice PDF.exe

outlook_office_path 1 IoCs

Processes:

overdue invoice PDF.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe

outlook_win_path 1 IoCs

Processes:

overdue invoice PDF.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe

C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.exe
"C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FNIcpowoxPr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5168.tmp"
2⤵
- Creates scheduled task(s)
PID:3936

C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\overdue invoice PDF.exe.log
MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5168.tmp
MD5
356f7c61efcd6eb6c9cae36f499bc456

SHA1
3582ee6785f08979ed4d67d1447787a2b14473f8

SHA256
db4f330cfaaa6f8cf73e8cd20a54f48adbd91e7b75bde7274442fdbba6dd5929

SHA512
56a4e8e496c992f2093eea6f7827bcd105b0df2cf5457fd9b7dd72c430e508393b37ad0f093ef60219877447ccf7bbcb20daf6a10a714f026bad9b79350f9b6f

Download Submit
memory/1568-137-0x00000000062E0000-0x00000000062E1000-memory.dmp

Filesize
4KB

Download
memory/1568-136-0x0000000006240000-0x0000000006241000-memory.dmp

Filesize
4KB

Download
memory/1568-135-0x0000000005640000-0x0000000005B3E000-memory.dmp

Filesize
5.0MB

Download
memory/1568-129-0x00000000004376DE-mapping.dmp

Download
memory/1568-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2224-120-0x0000000002B00000-0x0000000002B01000-memory.dmp

Filesize
4KB

Download
memory/2224-124-0x0000000005DC0000-0x0000000005E41000-memory.dmp

Filesize
516KB

Download
memory/2224-125-0x0000000008300000-0x0000000008338000-memory.dmp

Filesize
224KB

Download
memory/2224-123-0x0000000005010000-0x000000000501E000-memory.dmp

Filesize
56KB

Download
memory/2224-122-0x0000000002AE0000-0x0000000002AE1000-memory.dmp

Filesize
4KB

Download
memory/2224-121-0x0000000005140000-0x0000000005141000-memory.dmp

Filesize
4KB

Download
memory/2224-115-0x0000000000700000-0x0000000000701000-memory.dmp

Filesize
4KB

Download
memory/2224-119-0x00000000051C0000-0x00000000051C1000-memory.dmp

Filesize
4KB

Download
memory/2224-118-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

Download
memory/2224-117-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/3936-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads