agenttesla | 28abe2e608e6db2afe1d7c1a68d03a1ffc730e4ee859e8000bb9361419c84640

General

Target

DRAFT BL.exe
Size

571KB
MD5

fd0b80bab5473db3cc964b27e8a817e3
SHA1

4491d2e9d95c84e93a77d68c1ffd43d08ab342c2
SHA256

460a1e3acbde201bf39a076cc672dc052368cf55343fcbc6ad2a10ffb6fb3215
SHA512

deb82901f97b59e7f09bb93ec6305f587cba34eea855f9036524ab62be9a8a88110bb06b03002c32ab9ef5b133e05bca851523b130026aea594998fad679d71d

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
KYibdbJ9

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/2288-138-0x0000000000400000-0x0000000000468000-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:

DRAFT BL.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	DRAFT BL.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NewApp = "C:\\Users\\Admin\\AppData\\Roaming\\NewApp\\NewApp.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DRAFT BL.exe

description pid process target process

PID 1760 set thread context of 2288 1760 DRAFT BL.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

368 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

DRAFT BL.exeRegSvcs.exe

pid process

1760 DRAFT BL.exe
1760 DRAFT BL.exe
1760 DRAFT BL.exe
1760 DRAFT BL.exe
2288 RegSvcs.exe
2288 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DRAFT BL.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1760 DRAFT BL.exe
Token: SeDebugPrivilege 2288 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2288 RegSvcs.exe

description	pid	process	target process
PID 1760 set thread context of 2288	1760	DRAFT BL.exe	RegSvcs.exe

pid	process
368	schtasks.exe

pid	process
1760	DRAFT BL.exe
1760	DRAFT BL.exe
1760	DRAFT BL.exe
1760	DRAFT BL.exe
2288	RegSvcs.exe
2288	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1760	DRAFT BL.exe
Token: SeDebugPrivilege	2288	RegSvcs.exe

pid	process
2288	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

DRAFT BL.exe

description	pid	process	target process
PID 1760 wrote to memory of 368	1760	DRAFT BL.exe	schtasks.exe
PID 1760 wrote to memory of 368	1760	DRAFT BL.exe	schtasks.exe
PID 1760 wrote to memory of 368	1760	DRAFT BL.exe	schtasks.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe
PID 1760 wrote to memory of 2288	1760	DRAFT BL.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\DRAFT BL.exe
"C:\Users\Admin\AppData\Local\Temp\DRAFT BL.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1760

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tYnZuWKIf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9182.tmp"
2⤵
- Creates scheduled task(s)
PID:368

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

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\tmp9182.tmp

Filesize
1KB

MD5
b7f1bbb8b7b022d983fd68227191b16a

SHA1
13c9e95b5046a269826b874d006820bbc532a6db

SHA256
dff31e316726d41cf0f7c99f6e1a2d9591f72dba8cd338969c41b039f79685b7

SHA512
bcb68ffdcfabdb566fbd16bc5beda9e9100973d2696a20cdb74f56a9f4f51ad1e99ad4d46a0d9cb8cebd2b0fbb1d554939c6bafebcefabae203a60b155ba2158

Download Submit
memory/368-135-0x0000000000000000-mapping.dmp

Download
memory/1760-130-0x0000000000EA0000-0x0000000000F34000-memory.dmp

Filesize
592KB

Download
memory/1760-131-0x00000000083D0000-0x0000000008974000-memory.dmp

Filesize
5.6MB

Download
memory/1760-132-0x0000000007E20000-0x0000000007EB2000-memory.dmp

Filesize
584KB

Download
memory/1760-133-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/1760-134-0x0000000008160000-0x00000000081FC000-memory.dmp

Filesize
624KB

Download
memory/2288-137-0x0000000000000000-mapping.dmp

Download
memory/2288-138-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/2288-139-0x0000000006400000-0x0000000006466000-memory.dmp

Filesize
408KB

Download
memory/2288-140-0x0000000006A10000-0x0000000006A60000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads