agenttesla | 7db5974f16db1242a0212877eaf417100c33251811963573ac3eff2b4864fd6f

General

Target

purchase order.exe
Size

975KB
MD5

63c86be77aff4ce6c9b8b05457fc99b9
SHA1

5d3442c88ec022d2029d91633375e7e19bb60084
SHA256

f458911cad980b38b8c73ec5b8755b9b5d0d1ff6906ed78da4d5f6ec79b5acf8
SHA512

9c0892973d6b484a231f22d4c085fa797c815ef8e0c9c061249b44436886eba6e6cccc185977965451a778edc1ead34051595a68d77873bdf3e680ceba525fdb
SSDEEP

24576:KZLUMT+pWX9juJoJeZLUMT+pWX9juJoJmz:KWw+00Ww+0cz

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.yitaipackaging.com
Port:
587
Username:
[email protected]
Password:
22799213

Signatures

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

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2264-14-0x0000000000400000-0x000000000044C000-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

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

purchase order.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	purchase order.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\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

T1547.001

Modify Registry

T1112

Processes:

purchase order.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gKWBf = "C:\\Users\\Admin\\AppData\\Roaming\\gKWBf\\gKWBf.exe"	purchase order.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

purchase order.exe

description pid process target process

PID 2768 set thread context of 2264 2768 purchase order.exe purchase order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

4832 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4896 REG.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

purchase order.exepurchase order.exe

pid process

2768 purchase order.exe
2768 purchase order.exe
2768 purchase order.exe
2768 purchase order.exe
2264 purchase order.exe
2264 purchase order.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

purchase order.exepurchase order.exe

description pid process

Token: SeDebugPrivilege 2768 purchase order.exe
Token: SeDebugPrivilege 2264 purchase order.exe

description	pid	process	target process
PID 2768 set thread context of 2264	2768	purchase order.exe	purchase order.exe

pid	process
4832	schtasks.exe

pid	process
4896	REG.exe

pid	process
2768	purchase order.exe
2768	purchase order.exe
2768	purchase order.exe
2768	purchase order.exe
2264	purchase order.exe
2264	purchase order.exe

description	pid	process
Token: SeDebugPrivilege	2768	purchase order.exe
Token: SeDebugPrivilege	2264	purchase order.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

purchase order.exepurchase order.exe

description	pid	process	target process
PID 2768 wrote to memory of 4832	2768	purchase order.exe	schtasks.exe
PID 2768 wrote to memory of 4832	2768	purchase order.exe	schtasks.exe
PID 2768 wrote to memory of 4832	2768	purchase order.exe	schtasks.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2768 wrote to memory of 2264	2768	purchase order.exe	purchase order.exe
PID 2264 wrote to memory of 4896	2264	purchase order.exe	REG.exe
PID 2264 wrote to memory of 4896	2264	purchase order.exe	REG.exe
PID 2264 wrote to memory of 4896	2264	purchase order.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

purchase order.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\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-1-5-21-877519540-908060166-1852957295-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2768

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\awxzgc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC553.tmp"
2⤵
- Creates scheduled task(s)
PID:4832

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
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2264

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:4896

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

2

T1112

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC553.tmp
Filesize
1KB

MD5
6f417c5aeedd5965fe6989a126cf21da

SHA1
582ec98e6673bc90ce3528e342c3d44d055cdeaa

SHA256
13c5563e9761f8755ab8d9e028f10911f3432f43db5b1a24723f930b0b23a832

SHA512
ba21943e0cd46808c45a09b789407f402d57f237189e98843b655dfe332c2c12bf1aab2dc93dffa30921085812a600cff51037dffee3a719ee3bfd41dc7e42fc

Download Submit
memory/2264-22-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/2264-20-0x0000000006060000-0x00000000060C6000-memory.dmp

Filesize
408KB

Download
memory/2264-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2264-27-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/2264-26-0x0000000007120000-0x000000000712A000-memory.dmp

Filesize
40KB

Download
memory/2264-24-0x0000000006F40000-0x0000000006F90000-memory.dmp

Filesize
320KB

Download
memory/2264-23-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/2264-19-0x0000000005FC0000-0x0000000005FD8000-memory.dmp

Filesize
96KB

Download
memory/2264-18-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/2264-16-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/2264-28-0x0000000005930000-0x0000000005940000-memory.dmp

Filesize
64KB

Download
memory/2768-3-0x0000000004B80000-0x0000000004C12000-memory.dmp

Filesize
584KB

Download
memory/2768-10-0x00000000051A0000-0x0000000005200000-memory.dmp

Filesize
384KB

Download
memory/2768-9-0x00000000059B0000-0x0000000005A12000-memory.dmp

Filesize
392KB

Download
memory/2768-17-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/2768-8-0x0000000004CF0000-0x0000000004D00000-memory.dmp

Filesize
64KB

Download
memory/2768-2-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download
memory/2768-0-0x00000000000B0000-0x00000000001AA000-memory.dmp

Filesize
1000KB

Download
memory/2768-7-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/2768-6-0x0000000004B50000-0x0000000004B5A000-memory.dmp

Filesize
40KB

Download
memory/2768-5-0x0000000004CF0000-0x0000000004D00000-memory.dmp

Filesize
64KB

Download
memory/2768-4-0x0000000004D00000-0x0000000004D9C000-memory.dmp

Filesize
624KB

Download
memory/2768-1-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads