agenttesla | d33d3b2fc0555d5b478f2e06e1a11ddf7310d73e7f0dca11e5c6e94a02f0e4ff

General

Target

77eafe33151847045a09acab1689c50a.exe
Size

503KB
MD5

77eafe33151847045a09acab1689c50a
SHA1

2c522cfbae388470fe8a5ed0291b5001bb6d45b4
SHA256

d33d3b2fc0555d5b478f2e06e1a11ddf7310d73e7f0dca11e5c6e94a02f0e4ff
SHA512

03ffee96b26cd94eca7a0b15cb2ed44e30fe3364d95139305c87e96dc320b93f4ce664622c325afd004ec6bdd3544ce2dbe12a14b7a6475a51daf74e366d9919

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.officelog.org
Port:
587
Username:
ur@officelog.org
Password:
Wiremoney123.

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/1900-9-0x0000000000370000-0x0000000000372000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1832-15-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1832-16-0x000000000044D1DE-mapping.dmp	family_agenttesla
behavioral1/memory/1832-17-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1832-20-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1900-10-0x0000000004B70000-0x0000000004BC3000-memory.dmp	rezer0

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

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

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

77eafe33151847045a09acab1689c50a.exe

description pid process target process

PID 1900 set thread context of 1832 1900 77eafe33151847045a09acab1689c50a.exe 77eafe33151847045a09acab1689c50a.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

460 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

77eafe33151847045a09acab1689c50a.exe

pid process

1832 77eafe33151847045a09acab1689c50a.exe
1832 77eafe33151847045a09acab1689c50a.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

77eafe33151847045a09acab1689c50a.exe77eafe33151847045a09acab1689c50a.exe

description pid process

Token: SeDebugPrivilege 1900 77eafe33151847045a09acab1689c50a.exe
Token: SeDebugPrivilege 1832 77eafe33151847045a09acab1689c50a.exe

description	pid	process	target process
PID 1900 set thread context of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe

pid	process
460	schtasks.exe

pid	process
1832	77eafe33151847045a09acab1689c50a.exe
1832	77eafe33151847045a09acab1689c50a.exe

description	pid	process
Token: SeDebugPrivilege	1900	77eafe33151847045a09acab1689c50a.exe
Token: SeDebugPrivilege	1832	77eafe33151847045a09acab1689c50a.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

77eafe33151847045a09acab1689c50a.exe77eafe33151847045a09acab1689c50a.exe

description	pid	process	target process
PID 1900 wrote to memory of 460	1900	77eafe33151847045a09acab1689c50a.exe	schtasks.exe
PID 1900 wrote to memory of 460	1900	77eafe33151847045a09acab1689c50a.exe	schtasks.exe
PID 1900 wrote to memory of 460	1900	77eafe33151847045a09acab1689c50a.exe	schtasks.exe
PID 1900 wrote to memory of 460	1900	77eafe33151847045a09acab1689c50a.exe	schtasks.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1900 wrote to memory of 1832	1900	77eafe33151847045a09acab1689c50a.exe	77eafe33151847045a09acab1689c50a.exe
PID 1832 wrote to memory of 1940	1832	77eafe33151847045a09acab1689c50a.exe	netsh.exe
PID 1832 wrote to memory of 1940	1832	77eafe33151847045a09acab1689c50a.exe	netsh.exe
PID 1832 wrote to memory of 1940	1832	77eafe33151847045a09acab1689c50a.exe	netsh.exe
PID 1832 wrote to memory of 1940	1832	77eafe33151847045a09acab1689c50a.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\77eafe33151847045a09acab1689c50a.exe
"C:\Users\Admin\AppData\Local\Temp\77eafe33151847045a09acab1689c50a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wtQvAxzi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1777.tmp"
2⤵
- Creates scheduled task(s)
PID:460

C:\Users\Admin\AppData\Local\Temp\77eafe33151847045a09acab1689c50a.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1940

MITRE ATT&CK Matrix ATT&CK 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

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1777.tmp
MD5
ce39c35bc05f48bf47f8e3cecc5a4af5

SHA1
ebfb323126b703738e9b44fb5c40d26fd0577778

SHA256
eed369abda92a0e10ca41b7987b4670f4a6904bd1c1ce6b1c1a0c64f111b1f4f

SHA512
c73e61b297c3cd9709cad8096dbdc4bfedeb6a5c4458a09023206a7971cc1517f441a140a7348d6085749cf9d57b8bd7b3bddab25978e1c82b4db551120b785e

Download Submit
memory/460-12-0x0000000000000000-mapping.dmp

Download
memory/1832-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1832-22-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1832-20-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1832-17-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1832-16-0x000000000044D1DE-mapping.dmp

Download
memory/1900-9-0x0000000000370000-0x0000000000372000-memory.dmp

Filesize
8KB

Download
memory/1900-10-0x0000000004B70000-0x0000000004BC3000-memory.dmp

Filesize
332KB

Download
memory/1900-18-0x00000000005B0000-0x00000000005E0000-memory.dmp

Filesize
192KB

Download
memory/1900-0-0x0000000073E00000-0x00000000744EE000-memory.dmp

Filesize
6.9MB

Download
memory/1900-3-0x0000000000A00000-0x0000000000A5F000-memory.dmp

Filesize
380KB

Download
memory/1900-1-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1940-25-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads