agenttesla | da6761f510410bffddc3d88f53c4a63f2be0c56eee45e5c8f2d82081d84d14d3

General

Target

Invoice 4907856.exe
Size

598KB
MD5

cfe01269c178fea11b28130dd457c43e
SHA1

589c257ca5f0be53af4160bbd67c6a4dd01c8ae6
SHA256

40cf3214cd412e73955af3a64b3e61691ec44f3ee6bd8031ea37e69dce07b393
SHA512

7077c264debdbc5aa67e5d183eeaeb827360ecd886cce8bb24a7d93733bb33fad392dff3d2aa5a8854d9ecef70cde94510504e9eed7a5c8bb2d5145763374087

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.privateemail.com
Port:
587
Username:
[email protected]
Password:
coronavirus2020

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
behavioral4/memory/2792-137-0x0000000000400000-0x000000000044C000-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:

Invoice 4907856.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Invoice 4907856.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:

Invoice 4907856.exe

description pid process target process

PID 4412 set thread context of 2792 4412 Invoice 4907856.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

3976 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

2792 RegSvcs.exe
2792 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 2792 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2792 RegSvcs.exe

description	pid	process	target process
PID 4412 set thread context of 2792	4412	Invoice 4907856.exe	RegSvcs.exe

pid	process
3976	schtasks.exe

pid	process
2792	RegSvcs.exe
2792	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2792	RegSvcs.exe

pid	process
2792	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Invoice 4907856.exe

description	pid	process	target process
PID 4412 wrote to memory of 3976	4412	Invoice 4907856.exe	schtasks.exe
PID 4412 wrote to memory of 3976	4412	Invoice 4907856.exe	schtasks.exe
PID 4412 wrote to memory of 3976	4412	Invoice 4907856.exe	schtasks.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.exe	RegSvcs.exe
PID 4412 wrote to memory of 2792	4412	Invoice 4907856.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\Invoice 4907856.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice 4907856.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4412

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SvmSwTQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21B1.tmp"
2⤵
- Creates scheduled task(s)
PID:3976

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2792

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

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\tmp21B1.tmp
Filesize
1KB

MD5
c05716ef8465ed2594e36b858ce06f29

SHA1
a586ce31fd681cd0785f9b15bec6b4477e4eb26b

SHA256
3613a7cebda741afcce18a71201c139b27ec901d99940e371805d829df44878b

SHA512
29730daaad677e732885f461c87b6f5fa9f515bc4d2bdc0fae97a61df52ea147fa0d1436a2d041d57d6fcd3837b06c6d49e5313e5195f952793d11c8dca98fcc

Download Submit
memory/2792-136-0x0000000000000000-mapping.dmp

Download
memory/2792-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2792-138-0x00000000062A0000-0x0000000006306000-memory.dmp

Filesize
408KB

Download
memory/2792-139-0x0000000006A20000-0x0000000006A70000-memory.dmp

Filesize
320KB

Download
memory/2792-140-0x0000000006B10000-0x0000000006B1A000-memory.dmp

Filesize
40KB

Download
memory/3976-134-0x0000000000000000-mapping.dmp

Download
memory/4412-130-0x0000000000C50000-0x0000000000CEC000-memory.dmp

Filesize
624KB

Download
memory/4412-131-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/4412-132-0x0000000005AA0000-0x0000000005B3C000-memory.dmp

Filesize
624KB

Download
memory/4412-133-0x00000000060F0000-0x0000000006694000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads