agenttesla | 3b5300bcec026d4c17298a74342552eac5a8b1a6c27ad21649b392b67e436b97

General

Target

PO_KIS10.scr
Size

826KB
MD5

8d6e3d7db41eb59119d7e3d215be221f
SHA1

5fd08c7e2719c60bf2c438c81beb5dd891a66e6d
SHA256

a9c6ebe45d33c431aa47b65571cb8d4d0d56d439cea807aa603c744cf4105a1f
SHA512

b13b36fdf67448188d196df3bdd93ae6d2afcd3a6cbdab76a77b1bbc7f1725ebfb48d429b75ea2a3f6bd9bd73b50a8a400309dc4417b49a136ba6fc93499a766

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1624-56-0x0000000000280000-0x0000000000288000-memory.dmp	coreentity

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1624-60-0x0000000000DD0000-0x0000000000E22000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1624-57-0x00000000002E0000-0x0000000000338000-memory.dmp	rezer0

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO_KIS10.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_KIS10.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_KIS10.scr
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_KIS10.scr

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

1304 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PO_KIS10.scr

pid process

1624 PO_KIS10.scr
1624 PO_KIS10.scr
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PO_KIS10.scr

description pid process

Token: SeDebugPrivilege 1624 PO_KIS10.scr

pid	process
1304	schtasks.exe

pid	process
1624	PO_KIS10.scr
1624	PO_KIS10.scr

description	pid	process
Token: SeDebugPrivilege	1624	PO_KIS10.scr

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

PO_KIS10.scr

description	pid	process	target process
PID 1624 wrote to memory of 1304	1624	PO_KIS10.scr	schtasks.exe
PID 1624 wrote to memory of 1304	1624	PO_KIS10.scr	schtasks.exe
PID 1624 wrote to memory of 1304	1624	PO_KIS10.scr	schtasks.exe
PID 1624 wrote to memory of 1304	1624	PO_KIS10.scr	schtasks.exe
PID 1624 wrote to memory of 1324	1624	PO_KIS10.scr	netsh.exe
PID 1624 wrote to memory of 1324	1624	PO_KIS10.scr	netsh.exe
PID 1624 wrote to memory of 1324	1624	PO_KIS10.scr	netsh.exe
PID 1624 wrote to memory of 1324	1624	PO_KIS10.scr	netsh.exe

outlook_office_path 1 IoCs

Processes:

PO_KIS10.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_KIS10.scr

outlook_win_path 1 IoCs

Processes:

PO_KIS10.scr

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_KIS10.scr

C:\Users\Admin\AppData\Local\Temp\PO_KIS10.scr
"C:\Users\Admin\AppData\Local\Temp\PO_KIS10.scr" /S
1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1624

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xpxhvjQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp27AD.tmp"
2⤵
- Creates scheduled task(s)
PID:1304

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
2⤵
PID:1324

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

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp27AD.tmp
Filesize
1KB

MD5
d1b7b983df93e5deb6ed9298b8755db5

SHA1
9b7783a31d1fdadf7e051af6ead7ea22c73f544b

SHA256
9fb61340140c67a1f15e425f918e01631b1a7f7cb936c0f2d19623170d88cfa7

SHA512
ad85c664812476d51d2add58853aac26d787f0225225cca44456026c01e47257a33b1debb962f703155e2f2dd9a78188ba7c4641ee5e6f277aeca4d8f95fc34d

Download Submit
memory/1304-58-0x0000000000000000-mapping.dmp

Download
memory/1324-61-0x0000000000000000-mapping.dmp

Download
memory/1624-54-0x0000000001150000-0x0000000001224000-memory.dmp

Filesize
848KB

Download
memory/1624-55-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download
memory/1624-56-0x0000000000280000-0x0000000000288000-memory.dmp

Filesize
32KB

Download
memory/1624-57-0x00000000002E0000-0x0000000000338000-memory.dmp

Filesize
352KB

Download
memory/1624-60-0x0000000000DD0000-0x0000000000E22000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads