agenttesla | 674ff8b627f6d0e5c294518e5272a82230099a74dd87466941233f5091f05666

General

Target

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
Size

438KB
MD5

1fb477f037a5781626e07de476928154
SHA1

d73e53aba93e68cd66c9f68bdce0d1a61d8e7cfe
SHA256

cdbac6d4c4c6c722cf135d95f1c0e3d818dc660039ff4ad802c8ce4cc0f7145b
SHA512

60d41f5b320d3f29f89b163ebb70e4b06301d0ea6906acafb99e413258fe4d0976580f3f393f10f15590ba30b47edcf6c963163c62e91a02d300a73c6036517c

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.greebals.gr
Port:
587
Username:
[email protected]
Password:
g#BE=fpMXx@B

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.greebals.gr
Port:
587
Username:
[email protected]
Password:
g#BE=fpMXx@B

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/5100-134-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe

description pid process target process

PID 2444 set thread context of 5100 2444 YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe RegSvcs.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

2832 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

4708 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exeRegSvcs.exe

pid process

2444 YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
5100 RegSvcs.exe
5100 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2444 YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
Token: SeDebugPrivilege 5100 RegSvcs.exe

description	pid	process	target process
PID 2444 set thread context of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe

pid	process
2832	schtasks.exe

pid	process
4708	REG.exe

pid	process
2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
5100	RegSvcs.exe
5100	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
Token: SeDebugPrivilege	5100	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exeRegSvcs.exe

description	pid	process	target process
PID 2444 wrote to memory of 2832	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	schtasks.exe
PID 2444 wrote to memory of 2832	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	schtasks.exe
PID 2444 wrote to memory of 2832	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	schtasks.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 2444 wrote to memory of 5100	2444	YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe	RegSvcs.exe
PID 5100 wrote to memory of 4708	5100	RegSvcs.exe	REG.exe
PID 5100 wrote to memory of 4708	5100	RegSvcs.exe	REG.exe
PID 5100 wrote to memory of 4708	5100	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\YOKOHAMA TYRE VIETNAM INC RFQ_PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\weKIli" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE60A.tmp"
2⤵
- Creates scheduled task(s)
PID:2832

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:5100

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer / v NoRun / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:4708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE60A.tmp

Filesize
1KB

MD5
45e954d9df40cf6aaff8d5a35dd3495a

SHA1
1c5e7669f932f12ec15e39e220c0701d79a17ebb

SHA256
7aa01d53462258b9203f43bdf7dd2402e0396d332cee053631d4a019c35fbed8

SHA512
125b49c8d26fb3650c6d5c258727d13f4d0f82d621e64c0b3fd92123d077736d187f1d5483900fc9191a0b5e811472c8009c1e04cc01aae4452b38f53a7e447b

Download Submit
memory/2444-130-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download
memory/2832-131-0x0000000000000000-mapping.dmp

Download
memory/4708-136-0x0000000000000000-mapping.dmp

Download
memory/5100-133-0x0000000000000000-mapping.dmp

Download
memory/5100-134-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5100-135-0x0000000074FE0000-0x0000000075591000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads