agenttesla | 0ad2efeb1ec5e3a1d4157930f0948cc0d6b7c09abef08e386e4da6cd454f4f13

General

Target

NEWPO2INV_500B_DD278308.exe
Size

503KB
MD5

dc50d72f7175ceb3e787ebfe3f92d099
SHA1

7313a5a42aac60f844330f2f573f687191d39b5a
SHA256

0ad2efeb1ec5e3a1d4157930f0948cc0d6b7c09abef08e386e4da6cd454f4f13
SHA512

a9ec7f94afdf4aca11e0bc774c47c1ad9fb01a68f7dd851050463a439204b23411c57d8f5db09e4d74366244d58930e42a7d3fe7f66c12c6cf116edfde85a8a9

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
vietnhon.com
Port:
587
Username:
trungtran@vietnhon.com
Password:
123456

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
vietnhon.com
Port:
587
Username:
trungtran@vietnhon.com
Password:
123456

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
behavioral2/memory/4048-7-0x0000000002420000-0x0000000002423000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/204-12-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/204-13-0x000000000044C9EE-mapping.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral2/memory/4048-8-0x0000000009720000-0x0000000009773000-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:

NEWPO2INV_500B_DD278308.exe

description pid process target process

PID 4048 set thread context of 204 4048 NEWPO2INV_500B_DD278308.exe NEWPO2INV_500B_DD278308.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

3996 schtasks.exe

description	pid	process	target process
PID 4048 set thread context of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe

pid	process
3996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

NEWPO2INV_500B_DD278308.exeNEWPO2INV_500B_DD278308.exe

pid	process
4048	NEWPO2INV_500B_DD278308.exe
4048	NEWPO2INV_500B_DD278308.exe
4048	NEWPO2INV_500B_DD278308.exe
4048	NEWPO2INV_500B_DD278308.exe
4048	NEWPO2INV_500B_DD278308.exe
4048	NEWPO2INV_500B_DD278308.exe
204	NEWPO2INV_500B_DD278308.exe
204	NEWPO2INV_500B_DD278308.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

NEWPO2INV_500B_DD278308.exeNEWPO2INV_500B_DD278308.exe

description pid process

Token: SeDebugPrivilege 4048 NEWPO2INV_500B_DD278308.exe
Token: SeDebugPrivilege 204 NEWPO2INV_500B_DD278308.exe

description	pid	process
Token: SeDebugPrivilege	4048	NEWPO2INV_500B_DD278308.exe
Token: SeDebugPrivilege	204	NEWPO2INV_500B_DD278308.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

NEWPO2INV_500B_DD278308.exeNEWPO2INV_500B_DD278308.exe

description	pid	process	target process
PID 4048 wrote to memory of 3996	4048	NEWPO2INV_500B_DD278308.exe	schtasks.exe
PID 4048 wrote to memory of 3996	4048	NEWPO2INV_500B_DD278308.exe	schtasks.exe
PID 4048 wrote to memory of 3996	4048	NEWPO2INV_500B_DD278308.exe	schtasks.exe
PID 4048 wrote to memory of 200	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 200	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 200	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 4048 wrote to memory of 204	4048	NEWPO2INV_500B_DD278308.exe	NEWPO2INV_500B_DD278308.exe
PID 204 wrote to memory of 1392	204	NEWPO2INV_500B_DD278308.exe	netsh.exe
PID 204 wrote to memory of 1392	204	NEWPO2INV_500B_DD278308.exe	netsh.exe
PID 204 wrote to memory of 1392	204	NEWPO2INV_500B_DD278308.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\NEWPO2INV_500B_DD278308.exe
"C:\Users\Admin\AppData\Local\Temp\NEWPO2INV_500B_DD278308.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4048

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vcHtSbu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp476F.tmp"
2⤵
- Creates scheduled task(s)
PID:3996

C:\Users\Admin\AppData\Local\Temp\NEWPO2INV_500B_DD278308.exe
"{path}"
2⤵
PID:200

C:\Users\Admin\AppData\Local\Temp\NEWPO2INV_500B_DD278308.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1392

Network

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\Microsoft\CLR_v4.0_32\UsageLogs\NEWPO2INV_500B_DD278308.exe.log
MD5
b4f7a6a57cb46d94b72410eb6a6d45a9

SHA1
69f3596ffa027202d391444b769ceea0ae14c5f7

SHA256
23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

SHA512
be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp476F.tmp
MD5
30cbe452b15a0fe47cd387dc762fb690

SHA1
06ee20513ec732aff2fbb3bee79db17a7e68f70d

SHA256
8fd4fc141b26db4c3a9214524f6c24141c22bbe1db7ca46657794c0e70c04d51

SHA512
20ad5fd490a8e844f6527db2ef6b9eae453c90455013208bc9a9916e9fb7df98cd34e841afde4a8c6916e0721983fa4812014d2c3755d17df51fe32d5c7370be

Download Submit
memory/204-21-0x0000000005E50000-0x0000000005E51000-memory.dmp

Filesize
4KB

Download
memory/204-20-0x00000000058A0000-0x00000000058A1000-memory.dmp

Filesize
4KB

Download
memory/204-15-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

Download
memory/204-13-0x000000000044C9EE-mapping.dmp

Download
memory/204-12-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1392-22-0x0000000000000000-mapping.dmp

Download
memory/3996-10-0x0000000000000000-mapping.dmp

Download
memory/4048-5-0x0000000007270000-0x0000000007271000-memory.dmp

Filesize
4KB

Download
memory/4048-9-0x0000000009820000-0x0000000009821000-memory.dmp

Filesize
4KB

Download
memory/4048-8-0x0000000009720000-0x0000000009773000-memory.dmp

Filesize
332KB

Download
memory/4048-7-0x0000000002420000-0x0000000002423000-memory.dmp

Filesize
12KB

Download
memory/4048-6-0x0000000007350000-0x0000000007351000-memory.dmp

Filesize
4KB

Download
memory/4048-0-0x0000000073820000-0x0000000073F0E000-memory.dmp

Filesize
6.9MB

Download
memory/4048-4-0x0000000007670000-0x0000000007671000-memory.dmp

Filesize
4KB

Download
memory/4048-3-0x0000000004930000-0x000000000498C000-memory.dmp

Filesize
368KB

Download
memory/4048-1-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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