agenttesla | 25fe24fc98f5d8bb89c0dba2a703123f848eeb7bc35c48bc557ca78122838b60

General

Target

proforma invoice.exe
Size

564KB
MD5

2d8e0bc091145d53891022531fd421cf
SHA1

0f2aa8d15e30927460d3b4ca47d9d6c5315f714e
SHA256

4e655c620ed90cdbcd62d7c884c807cf82c8fff069da38d293dc746839597399
SHA512

31169c14831fa776d630f0fac4933dcd36d85b8301202ccaf6b5e7bf91d2d1bc9eb4d0bddf584ecd6ffd3b978140ec3f5a05048762fa771391d5b9b341c8183c
SSDEEP

12288:GXXxJ6TfTOjZeukFomAypu8sSY92u7fqAXPca:Gn+Tf60ukrAyE9hca

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.davaobay.com.ph
Port:
587
Username:
[email protected]
Password:
p@ssw0rd

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/1724-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

proforma invoice.exe

description ioc process

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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	proforma invoice.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:

proforma invoice.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Control Panel\International\Geo\Nation	proforma invoice.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:

proforma invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice.exe
Key opened	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

proforma invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WCPCe\\WCPCe.exe"	proforma invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

proforma invoice.exe

description pid process target process

PID 4388 set thread context of 1724 4388 proforma invoice.exe proforma invoice.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

732 schtasks.exe

description	pid	process	target process
PID 4388 set thread context of 1724	4388	proforma invoice.exe	proforma invoice.exe

pid	process
732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

proforma invoice.exeproforma invoice.exe

pid	process
4388	proforma invoice.exe
4388	proforma invoice.exe
4388	proforma invoice.exe
4388	proforma invoice.exe
1724	proforma invoice.exe
1724	proforma invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

proforma invoice.exeproforma invoice.exe

description pid process

Token: SeDebugPrivilege 4388 proforma invoice.exe
Token: SeDebugPrivilege 1724 proforma invoice.exe

description	pid	process
Token: SeDebugPrivilege	4388	proforma invoice.exe
Token: SeDebugPrivilege	1724	proforma invoice.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

proforma invoice.exe

description	pid	process	target process
PID 4388 wrote to memory of 732	4388	proforma invoice.exe	schtasks.exe
PID 4388 wrote to memory of 732	4388	proforma invoice.exe	schtasks.exe
PID 4388 wrote to memory of 732	4388	proforma invoice.exe	schtasks.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe
PID 4388 wrote to memory of 1724	4388	proforma invoice.exe	proforma invoice.exe

outlook_office_path 1 IoCs

Processes:

proforma invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice.exe

outlook_win_path 1 IoCs

Processes:

proforma invoice.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3411335054-1982420046-2118495756-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	proforma invoice.exe

C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe
"C:\Users\Admin\AppData\Local\Temp\proforma invoice.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4388

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RNKmffEDzXEQY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF397.tmp"
2⤵
- Creates scheduled task(s)
PID:732

C:\Users\Admin\AppData\Local\Temp\proforma invoice.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:1724

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

1

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\proforma invoice.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF397.tmp
Filesize
1KB

MD5
2d69670a0a4e5025873e98acb0feaea6

SHA1
ce952a0fa012260ddf3d2f718ed489b493b9333e

SHA256
538e60b8556cabb36998f0072f1d571134b17bf4d427940705e5c5ae3873af4d

SHA512
ec744aec0421452ab6b20ae8d033a048f932b218902a97014c401a25d049d5707870cee7b036575128963c4ca78f7c079244c9de6de04f67c25910b196ffd438

Download Submit
memory/1724-21-0x00000000050B0000-0x00000000050C8000-memory.dmp

Filesize
96KB

Download
memory/1724-29-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/1724-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1724-28-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/1724-27-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/1724-26-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/1724-24-0x0000000006580000-0x00000000065D0000-memory.dmp

Filesize
320KB

Download
memory/1724-22-0x0000000005D30000-0x0000000005D96000-memory.dmp

Filesize
408KB

Download
memory/1724-20-0x0000000004E70000-0x0000000004E80000-memory.dmp

Filesize
64KB

Download
memory/1724-19-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4388-8-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4388-4-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/4388-11-0x0000000008920000-0x000000000898A000-memory.dmp

Filesize
424KB

Download
memory/4388-18-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4388-1-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4388-10-0x00000000062D0000-0x0000000006342000-memory.dmp

Filesize
456KB

Download
memory/4388-0-0x00000000008C0000-0x0000000000954000-memory.dmp

Filesize
592KB

Download
memory/4388-9-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/4388-3-0x0000000005310000-0x00000000053A2000-memory.dmp

Filesize
584KB

Download
memory/4388-7-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/4388-6-0x00000000053B0000-0x00000000053C2000-memory.dmp

Filesize
72KB

Download
memory/4388-5-0x00000000055E0000-0x000000000567C000-memory.dmp

Filesize
624KB

Download
memory/4388-2-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads