agenttesla | e807d4714f17e7a6461c0ccc29279ff2861e976b05ca8cac18b3581f2a22503b

General

Target

PAYMENT_.exe
Size

467KB
MD5

d2a853f4673bcc9b9b2d17989cb3ba53
SHA1

cee8b196927b10efef3d4efd36a0570f861a0ee0
SHA256

c340fad2083b06131ba9375a8a9a90a71a7b5d9d6153a4c50ab4df210709af7e
SHA512

86bc93532b0ce626548d928b7fd0643e6a428243abf5398528a375302592753ecaeb3c2ed2e01180a79dc2180bc35b5903a02a994211241849b2da3fb888be62

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.orientalkuwait.com
Port:
587
Username:
[email protected]
Password:
Operatingmanager1&

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/940-56-0x0000000000400000-0x0000000000408000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1964-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1964-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1964-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1964-66-0x000000000044CDFE-mapping.dmp	family_agenttesla
behavioral1/memory/1964-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1964-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/940-54-0x0000000000940000-0x00000000009BC000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/940-57-0x00000000020A0000-0x00000000020FA000-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:

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

PAYMENT_.exe

description pid process target process

PID 940 set thread context of 1964 940 PAYMENT_.exe PAYMENT_.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

1700 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PAYMENT_.exe

pid process

1964 PAYMENT_.exe
1964 PAYMENT_.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

PAYMENT_.exe

description pid process

Token: SeDebugPrivilege 1964 PAYMENT_.exe

description	pid	process	target process
PID 940 set thread context of 1964	940	PAYMENT_.exe	PAYMENT_.exe

pid	process
1700	schtasks.exe

pid	process
1964	PAYMENT_.exe
1964	PAYMENT_.exe

description	pid	process
Token: SeDebugPrivilege	1964	PAYMENT_.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

PAYMENT_.exePAYMENT_.exe

description	pid	process	target process
PID 940 wrote to memory of 1700	940	PAYMENT_.exe	schtasks.exe
PID 940 wrote to memory of 1700	940	PAYMENT_.exe	schtasks.exe
PID 940 wrote to memory of 1700	940	PAYMENT_.exe	schtasks.exe
PID 940 wrote to memory of 1700	940	PAYMENT_.exe	schtasks.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 940 wrote to memory of 1964	940	PAYMENT_.exe	PAYMENT_.exe
PID 1964 wrote to memory of 1124	1964	PAYMENT_.exe	netsh.exe
PID 1964 wrote to memory of 1124	1964	PAYMENT_.exe	netsh.exe
PID 1964 wrote to memory of 1124	1964	PAYMENT_.exe	netsh.exe
PID 1964 wrote to memory of 1124	1964	PAYMENT_.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

PAYMENT_.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	PAYMENT_.exe

outlook_win_path 1 IoCs

Processes:

PAYMENT_.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	PAYMENT_.exe

C:\Users\Admin\AppData\Local\Temp\PAYMENT_.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENT_.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fKYLva" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE679.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1700
- C:\Users\Admin\AppData\Local\Temp\PAYMENT_.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:1964
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:1124

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

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\tmpE679.tmp

Filesize
1KB

MD5
649733cd819d3bebe2e5427acd2d8533

SHA1
66505de44c94147b09c1de699ed5949b61aefa10

SHA256
e5a09735157ed62ca886ba9d6b31261d5280bc00ba54c64148a0cbc42e1eacf0

SHA512
e0d8342d9a929cf01ccae2d4ce2e6d3dc2949c5e85e09e357d774eb12cce3d986a510502c482db4763f814bd51e0180a32f4e2591aeac5b350a9fcc1373c9d4c

Download Submit
memory/940-55-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/940-56-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/940-57-0x00000000020A0000-0x00000000020FA000-memory.dmp

Filesize
360KB

Download
memory/940-54-0x0000000000940000-0x00000000009BC000-memory.dmp

Filesize
496KB

Download
memory/1124-72-0x0000000000000000-mapping.dmp

Download
memory/1700-58-0x0000000000000000-mapping.dmp

Download
memory/1964-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-66-0x000000000044CDFE-mapping.dmp

Download
memory/1964-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1964-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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