agenttesla | 7fa32ef7677187129e2a8c47c3a846beebd2c18c154a00989d97e01cde9edb4a

General

Target

$45,520_180522.exe
Size

590KB
MD5

3f16c99040943dd50a8df3d0f4d2ae12
SHA1

2eeb4f24a92339b27c680d2330dd4c22dc129cf7
SHA256

7fa32ef7677187129e2a8c47c3a846beebd2c18c154a00989d97e01cde9edb4a
SHA512

3bfbe69961af3815c7d39df2fb40e01e878da35186d419f961bcd1b61e6275ab9cdb9717641294a43534fed24ddfb7ac6933f7b5b527bc03c95950f89c206308

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.silicainfotech.co.in
Port:
587
Username:
[email protected]
Password:
Silica@abcd1234@#

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.silicainfotech.co.in
Port:
587
Username:
[email protected]
Password:
Silica@abcd1234@#
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

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

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

$45,520_180522.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	$45,520_180522.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

$45,520_180522.exe

description pid process target process

PID 4576 set thread context of 2136 4576 $45,520_180522.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

3812 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

$45,520_180522.exeRegSvcs.exe

pid process

4576 $45,520_180522.exe
2136 RegSvcs.exe
2136 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

$45,520_180522.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 4576 $45,520_180522.exe
Token: SeDebugPrivilege 2136 RegSvcs.exe

description	pid	process	target process
PID 4576 set thread context of 2136	4576	$45,520_180522.exe	RegSvcs.exe

pid	process
3812	schtasks.exe

pid	process
4576	$45,520_180522.exe
2136	RegSvcs.exe
2136	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4576	$45,520_180522.exe
Token: SeDebugPrivilege	2136	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

$45,520_180522.exe

description	pid	process	target process
PID 4576 wrote to memory of 3812	4576	$45,520_180522.exe	schtasks.exe
PID 4576 wrote to memory of 3812	4576	$45,520_180522.exe	schtasks.exe
PID 4576 wrote to memory of 3812	4576	$45,520_180522.exe	schtasks.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe
PID 4576 wrote to memory of 2136	4576	$45,520_180522.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\$45,520_180522.exe
"C:\Users\Admin\AppData\Local\Temp\$45,520_180522.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4576

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ktUOZbjwfhU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp83D.tmp"
2⤵
- Creates scheduled task(s)
PID:3812

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2136

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp83D.tmp
Filesize
1KB

MD5
a2af732bb35b82a6fc8581eece024116

SHA1
822fa5e8c3f16ff7f64c8ac388abc3a47943751f

SHA256
2cff1a97bf686b7506e33201c74f9ea443100f4a0a1acd6f8bcaa1111c702443

SHA512
d52f1543070392055c58a688f536ced354f20dd052fb13f8bb7ec0667263c0d51c2e1ed0b4732e38f3fae328597848706e55f1c522a4fbef6ba1b47ceea090b1

Download Submit
memory/2136-137-0x0000000000000000-mapping.dmp

Download
memory/2136-138-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2136-139-0x0000000006300000-0x0000000006366000-memory.dmp

Filesize
408KB

Download
memory/2136-140-0x0000000006A10000-0x0000000006A60000-memory.dmp

Filesize
320KB

Download
memory/3812-135-0x0000000000000000-mapping.dmp

Download
memory/4576-130-0x0000000000090000-0x000000000012A000-memory.dmp

Filesize
616KB

Download
memory/4576-131-0x0000000005060000-0x0000000005604000-memory.dmp

Filesize
5.6MB

Download
memory/4576-132-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/4576-133-0x0000000004BF0000-0x0000000004C8C000-memory.dmp

Filesize
624KB

Download
memory/4576-134-0x0000000004AC0000-0x0000000004ACA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads