agenttesla | 8eaf735b18c3a1ebd7077eeac81457f1e7311114dd28604246728c4e02881f7c

General

Target

sales _pdf.gz.exe
Size

503KB
MD5

561978ce5c5027ddd74ab9958c89569e
SHA1

dbf352dd70a714e9f1f0b03832c0eca8eab17754
SHA256

34604c450edccb519e89347afd87707ca455038abfc2cc0e5b2919a4a677f93c
SHA512

b262294b164202685a9a6cf4b829bc2e2db820a254315bc1386e080c3617212673300d93a076ccef1d28c5e2ff5769c2d46eb1296a731e7edfaaaad0f6f14ca3

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pptoursperu.com
Port:
587
Username:
[email protected]
Password:
mailppt2019-

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/860-56-0x0000000000640000-0x0000000000648000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1316-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1316-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1316-64-0x000000000044BE5E-mapping.dmp	family_agenttesla
behavioral1/memory/1316-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1316-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1316-68-0x0000000000400000-0x0000000000450000-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/860-57-0x0000000004D50000-0x0000000004DA8000-memory.dmp	rezer0

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

sales _pdf.gz.exe

description pid process target process

PID 860 set thread context of 1316 860 sales _pdf.gz.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1316 RegSvcs.exe
1316 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1316 RegSvcs.exe

description	pid	process	target process
PID 860 set thread context of 1316	860	sales _pdf.gz.exe	RegSvcs.exe

pid	process
1316	RegSvcs.exe
1316	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1316	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

sales _pdf.gz.exe

description	pid	process	target process
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe
PID 860 wrote to memory of 1316	860	sales _pdf.gz.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\sales _pdf.gz.exe
"C:\Users\Admin\AppData\Local\Temp\sales _pdf.gz.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:860

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1316

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/860-54-0x0000000000100000-0x0000000000184000-memory.dmp

Filesize
528KB

Download
memory/860-55-0x0000000076461000-0x0000000076463000-memory.dmp

Filesize
8KB

Download
memory/860-56-0x0000000000640000-0x0000000000648000-memory.dmp

Filesize
32KB

Download
memory/860-57-0x0000000004D50000-0x0000000004DA8000-memory.dmp

Filesize
352KB

Download
memory/1316-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-64-0x000000000044BE5E-mapping.dmp

Download
memory/1316-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1316-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads