agenttesla | 6b38e25c6e111c4f041b048ff8a74c22a60f81d05ce6b5de283de5042c87aed0

General

Target

Request For Quote.exe
Size

656KB
MD5

d9bd911bcf5a9b6b29d10e805b8bb877
SHA1

4812b2b03777351c93887a24087a36761ad1608e
SHA256

96a3201fa6c5771d32d5ca7d7caee1cf66dfc635b5b2466d1eb5c4f105b6446a
SHA512

c2c86ed6bff1eebd1f4c71c9860ea96c9a75ae8f38350b990f4ccf4530b55fbeb97b6172115493c3881f587cde4533242618e708f21886888b7fdbe5f0048109

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.prcpl.com
Port:
587
Username:
[email protected]
Password:
jyotika@2015

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/932-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/932-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/932-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/932-66-0x00000000004476AE-mapping.dmp	family_agenttesla
behavioral1/memory/932-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/932-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\CJzRAE = "C:\\Users\\Admin\\AppData\\Roaming\\CJzRAE\\CJzRAE.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Request For Quote.exe

description pid process target process

PID 1164 set thread context of 932 1164 Request For Quote.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

1996 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

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

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 932 RegSvcs.exe

description	pid	process	target process
PID 1164 set thread context of 932	1164	Request For Quote.exe	RegSvcs.exe

pid	process
1996	schtasks.exe

pid	process
932	RegSvcs.exe
932	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	932	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Request For Quote.exe

description	pid	process	target process
PID 1164 wrote to memory of 1996	1164	Request For Quote.exe	schtasks.exe
PID 1164 wrote to memory of 1996	1164	Request For Quote.exe	schtasks.exe
PID 1164 wrote to memory of 1996	1164	Request For Quote.exe	schtasks.exe
PID 1164 wrote to memory of 1996	1164	Request For Quote.exe	schtasks.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe
PID 1164 wrote to memory of 932	1164	Request For Quote.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Request For Quote.exe
"C:\Users\Admin\AppData\Local\Temp\Request For Quote.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1164

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hBmwgKvPSVy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp255D.tmp"
2⤵
- Creates scheduled task(s)
PID:1996

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:932

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Bypass User Account Control

1

T1088

Scheduled Task

1

T1053

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp255D.tmp
Filesize
1KB

MD5
9c275ef04e4496b4ada3958ef20d44d2

SHA1
0052d28182ca58fbc3d828b053757a6c33a2ef97

SHA256
0a742533d2257bd51e7ac30c607cac86dea077a80cecee4088d60f048acf051a

SHA512
3d5bab72b3479c289878641251ae4d28c9834114f21ad9b004c1790a88f3ea65c31ee0959b4cba9386a57fc1a29df58d9a4a36c5a6a029f4a91a4a61ef8b66ed

Download Submit
memory/932-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-66-0x00000000004476AE-mapping.dmp

Download
memory/932-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/932-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1164-56-0x0000000001EC0000-0x0000000001F14000-memory.dmp

Filesize
336KB

Download
memory/1164-57-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/1164-55-0x0000000000380000-0x0000000000388000-memory.dmp

Filesize
32KB

Download
memory/1164-54-0x0000000000970000-0x0000000000A1A000-memory.dmp

Filesize
680KB

Download
memory/1996-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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