agenttesla | dc6ec612a3647aa1c29469710570837f1bab7e1e5e0f3fd0f6dd0a261c4c331a

General

Target

Purchase Order.exe
Size

1.2MB
MD5

25187e1348ce3471f3ac3b620edb3a63
SHA1

2193f4d5aa0a9e00dbbb8bdf2d40176adb5070c6
SHA256

dc6ec612a3647aa1c29469710570837f1bab7e1e5e0f3fd0f6dd0a261c4c331a
SHA512

7ee5f366b82bda3275fef09f254fab380c2cfef6c545fac5667b54b54d767f5a33c2bb0cf7a0ba6e2296a6d3381645511734f8bfa193edcaa21f8d0e23ef22b2

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
[email protected]
Password:
Password1000

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/1516-66-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1516-67-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1516-69-0x00000000004376CE-mapping.dmp	family_agenttesla
behavioral1/memory/1516-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/1516-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Purchase Order.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Purchase Order.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	Purchase Order.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Purchase Order.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	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe
Key opened	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchase Order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Purchase Order.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Order.exe

description pid process target process

PID 1440 set thread context of 1516 1440 Purchase Order.exe Purchase Order.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

1256 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Purchase Order.exe

pid process

1516 Purchase Order.exe
1516 Purchase Order.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Purchase Order.exe

description pid process

Token: SeDebugPrivilege 1516 Purchase Order.exe

description	pid	process	target process
PID 1440 set thread context of 1516	1440	Purchase Order.exe	Purchase Order.exe

pid	process
1256	schtasks.exe

pid	process
1516	Purchase Order.exe
1516	Purchase Order.exe

description	pid	process
Token: SeDebugPrivilege	1516	Purchase Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Purchase Order.exe

description	pid	process	target process
PID 1440 wrote to memory of 1256	1440	Purchase Order.exe	schtasks.exe
PID 1440 wrote to memory of 1256	1440	Purchase Order.exe	schtasks.exe
PID 1440 wrote to memory of 1256	1440	Purchase Order.exe	schtasks.exe
PID 1440 wrote to memory of 1256	1440	Purchase Order.exe	schtasks.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe
PID 1440 wrote to memory of 1516	1440	Purchase Order.exe	Purchase Order.exe

outlook_office_path 1 IoCs

Processes:

Purchase Order.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	Purchase Order.exe

outlook_win_path 1 IoCs

Processes:

Purchase Order.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	Purchase Order.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1440

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TYXWjGGnfmxrXp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp66ED.tmp"
2⤵
- Creates scheduled task(s)
PID:1256

C:\Users\Admin\AppData\Local\Temp\Purchase Order.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:1516

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\tmp66ED.tmp
MD5
d6a4eb7d19102cdd66a0f2b98576257d

SHA1
87a27908528a563f0d2d34a511ea1f0196d41dec

SHA256
edd4f9372494f99e8d0eea950043f3f5c65d77feb5822a1ced1b35290e9349e5

SHA512
694bd0a74c48510f8b79ec71b15ab9867515386bf637bc2dcc738ce1f2158e15e2904d0584ec2d850c756b49783f4bbc842874d8299a8e0cf7a45bb9dece363d

Download Submit
memory/1256-62-0x0000000000000000-mapping.dmp

Download
memory/1440-55-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1440-57-0x0000000075F41000-0x0000000075F43000-memory.dmp

Filesize
8KB

Download
memory/1440-58-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

Filesize
4KB

Download
memory/1440-59-0x0000000000540000-0x000000000054E000-memory.dmp

Filesize
56KB

Download
memory/1440-60-0x0000000005E70000-0x0000000005EF0000-memory.dmp

Filesize
512KB

Download
memory/1440-61-0x0000000002050000-0x0000000002088000-memory.dmp

Filesize
224KB

Download
memory/1516-64-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-65-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-66-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-67-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-69-0x00000000004376CE-mapping.dmp

Download
memory/1516-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1516-72-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1516-73-0x0000000000661000-0x0000000000662000-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