agenttesla | 4fe4931ff2df16ba3943c1380dd21e9c32ce29a708068b3190c10de20b5a1d99

General

Target

PO # 11002021.exe
Size

700KB
MD5

e9901eec1af843e9546a659866270f6e
SHA1

57b6cccf4084b0a4aff6d236eb6a30df4fe8029f
SHA256

20307784e2521eb5d902498d8c893d7c884e518c38d8659780019ad08fbd341b
SHA512

b98b4937c9c94ebbe91f14e758a7b43d7999047c30840ca802ae60ec18fad4479c9bc21a1a375280119969ebc229065a85f17052804aff96b1246dbacd21959e

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aldhiyafainteriors.com
Port:
587
Username:
[email protected]
Password:
dhiyafa@987

Signatures

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

AgentTesla Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/552-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/552-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/552-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/552-69-0x00000000004376CE-mapping.dmp	family_agenttesla
behavioral1/memory/552-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

PO # 11002021.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts PO # 11002021.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	PO # 11002021.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO # 11002021.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\DnDcR = "C:\\Users\\Admin\\AppData\\Roaming\\DnDcR\\DnDcR.exe"	PO # 11002021.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO # 11002021.exe

description pid process target process

PID 1700 set thread context of 552 1700 PO # 11002021.exe PO # 11002021.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

848 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PO # 11002021.exe

pid process

552 PO # 11002021.exe
552 PO # 11002021.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO # 11002021.exePO # 11002021.exe

description pid process

Token: SeDebugPrivilege 1700 PO # 11002021.exe
Token: SeDebugPrivilege 552 PO # 11002021.exe

description	pid	process	target process
PID 1700 set thread context of 552	1700	PO # 11002021.exe	PO # 11002021.exe

pid	process
848	schtasks.exe

pid	process
552	PO # 11002021.exe
552	PO # 11002021.exe

description	pid	process
Token: SeDebugPrivilege	1700	PO # 11002021.exe
Token: SeDebugPrivilege	552	PO # 11002021.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PO # 11002021.exe

description	pid	process	target process
PID 1700 wrote to memory of 848	1700	PO # 11002021.exe	schtasks.exe
PID 1700 wrote to memory of 848	1700	PO # 11002021.exe	schtasks.exe
PID 1700 wrote to memory of 848	1700	PO # 11002021.exe	schtasks.exe
PID 1700 wrote to memory of 848	1700	PO # 11002021.exe	schtasks.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe
PID 1700 wrote to memory of 552	1700	PO # 11002021.exe	PO # 11002021.exe

outlook_office_path 1 IoCs

Processes:

PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

outlook_win_path 1 IoCs

Processes:

PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe
"C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ucluvjDNoCBwJD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp649D.tmp"
2⤵
- Creates scheduled task(s)
PID:848

C:\Users\Admin\AppData\Local\Temp\PO # 11002021.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:552

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\Temp\tmp649D.tmp
MD5
c6a3cf56f93c8f38c2978a2a04f201a7

SHA1
baf269e169a77695d0bb3c94bd34d88c31c8f617

SHA256
e63edafd7360ea38ceb6a80c6611616194f2d7746a1ab34e80cf8e56154552a4

SHA512
84c0e6ba3fc90a845388ecb807544ef91d514ae4c05932d409518c81eb05ce28d57a7a633eb5f40b8aaf614285db4de90892c720adac7ce246327d617f8976d2

Download Submit
memory/552-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/552-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/552-73-0x0000000004B81000-0x0000000004B82000-memory.dmp

Filesize
4KB

Download
memory/552-72-0x0000000004B80000-0x0000000004B81000-memory.dmp

Filesize
4KB

Download
memory/552-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/552-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/552-69-0x00000000004376CE-mapping.dmp

Download
memory/552-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/552-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/848-62-0x0000000000000000-mapping.dmp

Download
memory/1700-61-0x0000000000830000-0x0000000000868000-memory.dmp

Filesize
224KB

Download
memory/1700-57-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download
memory/1700-55-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/1700-58-0x0000000000870000-0x0000000000871000-memory.dmp

Filesize
4KB

Download
memory/1700-60-0x0000000004E50000-0x0000000004EC5000-memory.dmp

Filesize
468KB

Download
memory/1700-59-0x0000000000310000-0x000000000031E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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